Insecticidal activity against larvae of Spodoptera frugiperda (fall armyworm) assessed induction of prothetely appearance of precocious pupal structures in larvae at 50 ug/ml, po after 48 to 72 hr
|
Spodoptera frugiperda
|
None
|
|
Journal : Ind Crops Prod
Title : Antifeedant, insect growth regulatory and insecticidal effects of Calceolaria talcana (Calceolariaceae) on Drosophila melanogaster and Spodoptera frugiperda
Year : 2013
Volume : 42
First Page : 137
Last Page : 144
Authors : Muñoz E, Carlos L. Cespedes, Claudio Lamilla, Juan Camilo Marin, Julio Alarcon.
Abstract : Extracts from Calceolaria talcana exhibited strong bioinsecticidal effects against Drosophila melanogaster and Spodoptera frugiperda. The most active extract was ethyl acetate and its majority compound verbascoside. The highest lethal concentration to the larvae of S. frugiperda and D. melanogaster was 20.0μg/ml of the ethyl acetate extract with 95.8% and 67.0% of mortality, respectively. Against D. melanogaster the ethyl acetate extract showed the highest activity with 75.05% of antifeedant index at 25μg/ml, methanol extract instead showed 100% to 100μg/ml. At very low concentrations ethyl acetate and methanol extracts induce antifeedant and insect growth regulatory activity showing selective effects as deterrent and on the sclerotization showing a pre-emergence effect on S. frugiperda. The results from these extracts were better than showed by methanol extracts from Cedrela salvadorensis, Myrtillocactus geometrizans and Yucca periculosa samples used as positive controls.
Insecticidal activity against larvae of Spodoptera frugiperda (fall armyworm) assessed inhibition of ecdysis at 25 ug/ml, po after 21 days
|
Spodoptera frugiperda
|
None
|
|
Journal : Ind Crops Prod
Title : Antifeedant, insect growth regulatory and insecticidal effects of Calceolaria talcana (Calceolariaceae) on Drosophila melanogaster and Spodoptera frugiperda
Year : 2013
Volume : 42
First Page : 137
Last Page : 144
Authors : Muñoz E, Carlos L. Cespedes, Claudio Lamilla, Juan Camilo Marin, Julio Alarcon.
Abstract : Extracts from Calceolaria talcana exhibited strong bioinsecticidal effects against Drosophila melanogaster and Spodoptera frugiperda. The most active extract was ethyl acetate and its majority compound verbascoside. The highest lethal concentration to the larvae of S. frugiperda and D. melanogaster was 20.0μg/ml of the ethyl acetate extract with 95.8% and 67.0% of mortality, respectively. Against D. melanogaster the ethyl acetate extract showed the highest activity with 75.05% of antifeedant index at 25μg/ml, methanol extract instead showed 100% to 100μg/ml. At very low concentrations ethyl acetate and methanol extracts induce antifeedant and insect growth regulatory activity showing selective effects as deterrent and on the sclerotization showing a pre-emergence effect on S. frugiperda. The results from these extracts were better than showed by methanol extracts from Cedrela salvadorensis, Myrtillocactus geometrizans and Yucca periculosa samples used as positive controls.
Insecticidal activity against larvae of Spodoptera frugiperda (fall armyworm) assessed induction of apolysis at 25 ug/ml, po after 21 days
|
Spodoptera frugiperda
|
None
|
|
Journal : Ind Crops Prod
Title : Antifeedant, insect growth regulatory and insecticidal effects of Calceolaria talcana (Calceolariaceae) on Drosophila melanogaster and Spodoptera frugiperda
Year : 2013
Volume : 42
First Page : 137
Last Page : 144
Authors : Muñoz E, Carlos L. Cespedes, Claudio Lamilla, Juan Camilo Marin, Julio Alarcon.
Abstract : Extracts from Calceolaria talcana exhibited strong bioinsecticidal effects against Drosophila melanogaster and Spodoptera frugiperda. The most active extract was ethyl acetate and its majority compound verbascoside. The highest lethal concentration to the larvae of S. frugiperda and D. melanogaster was 20.0μg/ml of the ethyl acetate extract with 95.8% and 67.0% of mortality, respectively. Against D. melanogaster the ethyl acetate extract showed the highest activity with 75.05% of antifeedant index at 25μg/ml, methanol extract instead showed 100% to 100μg/ml. At very low concentrations ethyl acetate and methanol extracts induce antifeedant and insect growth regulatory activity showing selective effects as deterrent and on the sclerotization showing a pre-emergence effect on S. frugiperda. The results from these extracts were better than showed by methanol extracts from Cedrela salvadorensis, Myrtillocactus geometrizans and Yucca periculosa samples used as positive controls.
Insecticidal activity against larvae of Spodoptera frugiperda (fall armyworm) assessed growth index at 50 ppm relative to control
|
Spodoptera frugiperda
|
0.1
|
|
Journal : Ind Crops Prod
Title : Antifeedant, insect growth regulatory and insecticidal effects of Calceolaria talcana (Calceolariaceae) on Drosophila melanogaster and Spodoptera frugiperda
Year : 2013
Volume : 42
First Page : 137
Last Page : 144
Authors : Muñoz E, Carlos L. Cespedes, Claudio Lamilla, Juan Camilo Marin, Julio Alarcon.
Abstract : Extracts from Calceolaria talcana exhibited strong bioinsecticidal effects against Drosophila melanogaster and Spodoptera frugiperda. The most active extract was ethyl acetate and its majority compound verbascoside. The highest lethal concentration to the larvae of S. frugiperda and D. melanogaster was 20.0μg/ml of the ethyl acetate extract with 95.8% and 67.0% of mortality, respectively. Against D. melanogaster the ethyl acetate extract showed the highest activity with 75.05% of antifeedant index at 25μg/ml, methanol extract instead showed 100% to 100μg/ml. At very low concentrations ethyl acetate and methanol extracts induce antifeedant and insect growth regulatory activity showing selective effects as deterrent and on the sclerotization showing a pre-emergence effect on S. frugiperda. The results from these extracts were better than showed by methanol extracts from Cedrela salvadorensis, Myrtillocactus geometrizans and Yucca periculosa samples used as positive controls.
Insecticidal activity against larvae of Spodoptera frugiperda (fall armyworm) assessed growth index at 35 ppm relative to control
|
Spodoptera frugiperda
|
0.15
|
|
Journal : Ind Crops Prod
Title : Antifeedant, insect growth regulatory and insecticidal effects of Calceolaria talcana (Calceolariaceae) on Drosophila melanogaster and Spodoptera frugiperda
Year : 2013
Volume : 42
First Page : 137
Last Page : 144
Authors : Muñoz E, Carlos L. Cespedes, Claudio Lamilla, Juan Camilo Marin, Julio Alarcon.
Abstract : Extracts from Calceolaria talcana exhibited strong bioinsecticidal effects against Drosophila melanogaster and Spodoptera frugiperda. The most active extract was ethyl acetate and its majority compound verbascoside. The highest lethal concentration to the larvae of S. frugiperda and D. melanogaster was 20.0μg/ml of the ethyl acetate extract with 95.8% and 67.0% of mortality, respectively. Against D. melanogaster the ethyl acetate extract showed the highest activity with 75.05% of antifeedant index at 25μg/ml, methanol extract instead showed 100% to 100μg/ml. At very low concentrations ethyl acetate and methanol extracts induce antifeedant and insect growth regulatory activity showing selective effects as deterrent and on the sclerotization showing a pre-emergence effect on S. frugiperda. The results from these extracts were better than showed by methanol extracts from Cedrela salvadorensis, Myrtillocactus geometrizans and Yucca periculosa samples used as positive controls.
Insecticidal activity against larvae of Spodoptera frugiperda (fall armyworm) assessed growth index at 25 ppm relative to control
|
Spodoptera frugiperda
|
0.45
|
|
Journal : Ind Crops Prod
Title : Antifeedant, insect growth regulatory and insecticidal effects of Calceolaria talcana (Calceolariaceae) on Drosophila melanogaster and Spodoptera frugiperda
Year : 2013
Volume : 42
First Page : 137
Last Page : 144
Authors : Muñoz E, Carlos L. Cespedes, Claudio Lamilla, Juan Camilo Marin, Julio Alarcon.
Abstract : Extracts from Calceolaria talcana exhibited strong bioinsecticidal effects against Drosophila melanogaster and Spodoptera frugiperda. The most active extract was ethyl acetate and its majority compound verbascoside. The highest lethal concentration to the larvae of S. frugiperda and D. melanogaster was 20.0μg/ml of the ethyl acetate extract with 95.8% and 67.0% of mortality, respectively. Against D. melanogaster the ethyl acetate extract showed the highest activity with 75.05% of antifeedant index at 25μg/ml, methanol extract instead showed 100% to 100μg/ml. At very low concentrations ethyl acetate and methanol extracts induce antifeedant and insect growth regulatory activity showing selective effects as deterrent and on the sclerotization showing a pre-emergence effect on S. frugiperda. The results from these extracts were better than showed by methanol extracts from Cedrela salvadorensis, Myrtillocactus geometrizans and Yucca periculosa samples used as positive controls.
Insecticidal activity against larvae of Spodoptera frugiperda (fall armyworm) assessed growth index at 10 ppm relative to control
|
Spodoptera frugiperda
|
0.67
|
|
Journal : Ind Crops Prod
Title : Antifeedant, insect growth regulatory and insecticidal effects of Calceolaria talcana (Calceolariaceae) on Drosophila melanogaster and Spodoptera frugiperda
Year : 2013
Volume : 42
First Page : 137
Last Page : 144
Authors : Muñoz E, Carlos L. Cespedes, Claudio Lamilla, Juan Camilo Marin, Julio Alarcon.
Abstract : Extracts from Calceolaria talcana exhibited strong bioinsecticidal effects against Drosophila melanogaster and Spodoptera frugiperda. The most active extract was ethyl acetate and its majority compound verbascoside. The highest lethal concentration to the larvae of S. frugiperda and D. melanogaster was 20.0μg/ml of the ethyl acetate extract with 95.8% and 67.0% of mortality, respectively. Against D. melanogaster the ethyl acetate extract showed the highest activity with 75.05% of antifeedant index at 25μg/ml, methanol extract instead showed 100% to 100μg/ml. At very low concentrations ethyl acetate and methanol extracts induce antifeedant and insect growth regulatory activity showing selective effects as deterrent and on the sclerotization showing a pre-emergence effect on S. frugiperda. The results from these extracts were better than showed by methanol extracts from Cedrela salvadorensis, Myrtillocactus geometrizans and Yucca periculosa samples used as positive controls.
Insecticidal activity against larvae of Spodoptera frugiperda (fall armyworm) assessed growth index at 50 ppm
|
Spodoptera frugiperda
|
0.07
|
|
Journal : Ind Crops Prod
Title : Antifeedant, insect growth regulatory and insecticidal effects of Calceolaria talcana (Calceolariaceae) on Drosophila melanogaster and Spodoptera frugiperda
Year : 2013
Volume : 42
First Page : 137
Last Page : 144
Authors : Muñoz E, Carlos L. Cespedes, Claudio Lamilla, Juan Camilo Marin, Julio Alarcon.
Abstract : Extracts from Calceolaria talcana exhibited strong bioinsecticidal effects against Drosophila melanogaster and Spodoptera frugiperda. The most active extract was ethyl acetate and its majority compound verbascoside. The highest lethal concentration to the larvae of S. frugiperda and D. melanogaster was 20.0μg/ml of the ethyl acetate extract with 95.8% and 67.0% of mortality, respectively. Against D. melanogaster the ethyl acetate extract showed the highest activity with 75.05% of antifeedant index at 25μg/ml, methanol extract instead showed 100% to 100μg/ml. At very low concentrations ethyl acetate and methanol extracts induce antifeedant and insect growth regulatory activity showing selective effects as deterrent and on the sclerotization showing a pre-emergence effect on S. frugiperda. The results from these extracts were better than showed by methanol extracts from Cedrela salvadorensis, Myrtillocactus geometrizans and Yucca periculosa samples used as positive controls.
Insecticidal activity against larvae of Spodoptera frugiperda (fall armyworm) assessed growth index at 35 ppm
|
Spodoptera frugiperda
|
0.09
|
|
Journal : Ind Crops Prod
Title : Antifeedant, insect growth regulatory and insecticidal effects of Calceolaria talcana (Calceolariaceae) on Drosophila melanogaster and Spodoptera frugiperda
Year : 2013
Volume : 42
First Page : 137
Last Page : 144
Authors : Muñoz E, Carlos L. Cespedes, Claudio Lamilla, Juan Camilo Marin, Julio Alarcon.
Abstract : Extracts from Calceolaria talcana exhibited strong bioinsecticidal effects against Drosophila melanogaster and Spodoptera frugiperda. The most active extract was ethyl acetate and its majority compound verbascoside. The highest lethal concentration to the larvae of S. frugiperda and D. melanogaster was 20.0μg/ml of the ethyl acetate extract with 95.8% and 67.0% of mortality, respectively. Against D. melanogaster the ethyl acetate extract showed the highest activity with 75.05% of antifeedant index at 25μg/ml, methanol extract instead showed 100% to 100μg/ml. At very low concentrations ethyl acetate and methanol extracts induce antifeedant and insect growth regulatory activity showing selective effects as deterrent and on the sclerotization showing a pre-emergence effect on S. frugiperda. The results from these extracts were better than showed by methanol extracts from Cedrela salvadorensis, Myrtillocactus geometrizans and Yucca periculosa samples used as positive controls.
Insecticidal activity against larvae of Spodoptera frugiperda (fall armyworm) assessed growth index at 25 ppm
|
Spodoptera frugiperda
|
0.41
|
|
Journal : Ind Crops Prod
Title : Antifeedant, insect growth regulatory and insecticidal effects of Calceolaria talcana (Calceolariaceae) on Drosophila melanogaster and Spodoptera frugiperda
Year : 2013
Volume : 42
First Page : 137
Last Page : 144
Authors : Muñoz E, Carlos L. Cespedes, Claudio Lamilla, Juan Camilo Marin, Julio Alarcon.
Abstract : Extracts from Calceolaria talcana exhibited strong bioinsecticidal effects against Drosophila melanogaster and Spodoptera frugiperda. The most active extract was ethyl acetate and its majority compound verbascoside. The highest lethal concentration to the larvae of S. frugiperda and D. melanogaster was 20.0μg/ml of the ethyl acetate extract with 95.8% and 67.0% of mortality, respectively. Against D. melanogaster the ethyl acetate extract showed the highest activity with 75.05% of antifeedant index at 25μg/ml, methanol extract instead showed 100% to 100μg/ml. At very low concentrations ethyl acetate and methanol extracts induce antifeedant and insect growth regulatory activity showing selective effects as deterrent and on the sclerotization showing a pre-emergence effect on S. frugiperda. The results from these extracts were better than showed by methanol extracts from Cedrela salvadorensis, Myrtillocactus geometrizans and Yucca periculosa samples used as positive controls.
Insecticidal activity against larvae of Spodoptera frugiperda (fall armyworm) assessed growth index at 10 ppm
|
Spodoptera frugiperda
|
0.66
|
|
Journal : Ind Crops Prod
Title : Antifeedant, insect growth regulatory and insecticidal effects of Calceolaria talcana (Calceolariaceae) on Drosophila melanogaster and Spodoptera frugiperda
Year : 2013
Volume : 42
First Page : 137
Last Page : 144
Authors : Muñoz E, Carlos L. Cespedes, Claudio Lamilla, Juan Camilo Marin, Julio Alarcon.
Abstract : Extracts from Calceolaria talcana exhibited strong bioinsecticidal effects against Drosophila melanogaster and Spodoptera frugiperda. The most active extract was ethyl acetate and its majority compound verbascoside. The highest lethal concentration to the larvae of S. frugiperda and D. melanogaster was 20.0μg/ml of the ethyl acetate extract with 95.8% and 67.0% of mortality, respectively. Against D. melanogaster the ethyl acetate extract showed the highest activity with 75.05% of antifeedant index at 25μg/ml, methanol extract instead showed 100% to 100μg/ml. At very low concentrations ethyl acetate and methanol extracts induce antifeedant and insect growth regulatory activity showing selective effects as deterrent and on the sclerotization showing a pre-emergence effect on S. frugiperda. The results from these extracts were better than showed by methanol extracts from Cedrela salvadorensis, Myrtillocactus geometrizans and Yucca periculosa samples used as positive controls.
Insecticidal activity against larvae of Spodoptera frugiperda (fall armyworm) assessed mortality at 50 ppm after 21 days relative to control
|
Spodoptera frugiperda
|
100.0
%
|
|
Journal : Ind Crops Prod
Title : Antifeedant, insect growth regulatory and insecticidal effects of Calceolaria talcana (Calceolariaceae) on Drosophila melanogaster and Spodoptera frugiperda
Year : 2013
Volume : 42
First Page : 137
Last Page : 144
Authors : Muñoz E, Carlos L. Cespedes, Claudio Lamilla, Juan Camilo Marin, Julio Alarcon.
Abstract : Extracts from Calceolaria talcana exhibited strong bioinsecticidal effects against Drosophila melanogaster and Spodoptera frugiperda. The most active extract was ethyl acetate and its majority compound verbascoside. The highest lethal concentration to the larvae of S. frugiperda and D. melanogaster was 20.0μg/ml of the ethyl acetate extract with 95.8% and 67.0% of mortality, respectively. Against D. melanogaster the ethyl acetate extract showed the highest activity with 75.05% of antifeedant index at 25μg/ml, methanol extract instead showed 100% to 100μg/ml. At very low concentrations ethyl acetate and methanol extracts induce antifeedant and insect growth regulatory activity showing selective effects as deterrent and on the sclerotization showing a pre-emergence effect on S. frugiperda. The results from these extracts were better than showed by methanol extracts from Cedrela salvadorensis, Myrtillocactus geometrizans and Yucca periculosa samples used as positive controls.
Insecticidal activity against larvae of Spodoptera frugiperda (fall armyworm) assessed mortality at 35 ppm after 21 days relative to control
|
Spodoptera frugiperda
|
100.0
%
|
|
Journal : Ind Crops Prod
Title : Antifeedant, insect growth regulatory and insecticidal effects of Calceolaria talcana (Calceolariaceae) on Drosophila melanogaster and Spodoptera frugiperda
Year : 2013
Volume : 42
First Page : 137
Last Page : 144
Authors : Muñoz E, Carlos L. Cespedes, Claudio Lamilla, Juan Camilo Marin, Julio Alarcon.
Abstract : Extracts from Calceolaria talcana exhibited strong bioinsecticidal effects against Drosophila melanogaster and Spodoptera frugiperda. The most active extract was ethyl acetate and its majority compound verbascoside. The highest lethal concentration to the larvae of S. frugiperda and D. melanogaster was 20.0μg/ml of the ethyl acetate extract with 95.8% and 67.0% of mortality, respectively. Against D. melanogaster the ethyl acetate extract showed the highest activity with 75.05% of antifeedant index at 25μg/ml, methanol extract instead showed 100% to 100μg/ml. At very low concentrations ethyl acetate and methanol extracts induce antifeedant and insect growth regulatory activity showing selective effects as deterrent and on the sclerotization showing a pre-emergence effect on S. frugiperda. The results from these extracts were better than showed by methanol extracts from Cedrela salvadorensis, Myrtillocactus geometrizans and Yucca periculosa samples used as positive controls.
Insecticidal activity against larvae of Spodoptera frugiperda (fall armyworm) assessed mortality at 20 ppm after 21 days relative to control
|
Spodoptera frugiperda
|
100.0
%
|
|
Journal : Ind Crops Prod
Title : Antifeedant, insect growth regulatory and insecticidal effects of Calceolaria talcana (Calceolariaceae) on Drosophila melanogaster and Spodoptera frugiperda
Year : 2013
Volume : 42
First Page : 137
Last Page : 144
Authors : Muñoz E, Carlos L. Cespedes, Claudio Lamilla, Juan Camilo Marin, Julio Alarcon.
Abstract : Extracts from Calceolaria talcana exhibited strong bioinsecticidal effects against Drosophila melanogaster and Spodoptera frugiperda. The most active extract was ethyl acetate and its majority compound verbascoside. The highest lethal concentration to the larvae of S. frugiperda and D. melanogaster was 20.0μg/ml of the ethyl acetate extract with 95.8% and 67.0% of mortality, respectively. Against D. melanogaster the ethyl acetate extract showed the highest activity with 75.05% of antifeedant index at 25μg/ml, methanol extract instead showed 100% to 100μg/ml. At very low concentrations ethyl acetate and methanol extracts induce antifeedant and insect growth regulatory activity showing selective effects as deterrent and on the sclerotization showing a pre-emergence effect on S. frugiperda. The results from these extracts were better than showed by methanol extracts from Cedrela salvadorensis, Myrtillocactus geometrizans and Yucca periculosa samples used as positive controls.
Insecticidal activity against larvae of Spodoptera frugiperda (fall armyworm) assessed mortality at 10 ppm after 21 days relative to control
|
Spodoptera frugiperda
|
81.3
%
|
|
Journal : Ind Crops Prod
Title : Antifeedant, insect growth regulatory and insecticidal effects of Calceolaria talcana (Calceolariaceae) on Drosophila melanogaster and Spodoptera frugiperda
Year : 2013
Volume : 42
First Page : 137
Last Page : 144
Authors : Muñoz E, Carlos L. Cespedes, Claudio Lamilla, Juan Camilo Marin, Julio Alarcon.
Abstract : Extracts from Calceolaria talcana exhibited strong bioinsecticidal effects against Drosophila melanogaster and Spodoptera frugiperda. The most active extract was ethyl acetate and its majority compound verbascoside. The highest lethal concentration to the larvae of S. frugiperda and D. melanogaster was 20.0μg/ml of the ethyl acetate extract with 95.8% and 67.0% of mortality, respectively. Against D. melanogaster the ethyl acetate extract showed the highest activity with 75.05% of antifeedant index at 25μg/ml, methanol extract instead showed 100% to 100μg/ml. At very low concentrations ethyl acetate and methanol extracts induce antifeedant and insect growth regulatory activity showing selective effects as deterrent and on the sclerotization showing a pre-emergence effect on S. frugiperda. The results from these extracts were better than showed by methanol extracts from Cedrela salvadorensis, Myrtillocactus geometrizans and Yucca periculosa samples used as positive controls.
Antifeedant activity against larvae of Spodoptera frugiperda (fall armyworm) assessed reduction of adult emergence at 50 ppm after 21 days relative to control
|
Spodoptera frugiperda
|
0.0
%
|
|
Journal : Ind Crops Prod
Title : Antifeedant, insect growth regulatory and insecticidal effects of Calceolaria talcana (Calceolariaceae) on Drosophila melanogaster and Spodoptera frugiperda
Year : 2013
Volume : 42
First Page : 137
Last Page : 144
Authors : Muñoz E, Carlos L. Cespedes, Claudio Lamilla, Juan Camilo Marin, Julio Alarcon.
Abstract : Extracts from Calceolaria talcana exhibited strong bioinsecticidal effects against Drosophila melanogaster and Spodoptera frugiperda. The most active extract was ethyl acetate and its majority compound verbascoside. The highest lethal concentration to the larvae of S. frugiperda and D. melanogaster was 20.0μg/ml of the ethyl acetate extract with 95.8% and 67.0% of mortality, respectively. Against D. melanogaster the ethyl acetate extract showed the highest activity with 75.05% of antifeedant index at 25μg/ml, methanol extract instead showed 100% to 100μg/ml. At very low concentrations ethyl acetate and methanol extracts induce antifeedant and insect growth regulatory activity showing selective effects as deterrent and on the sclerotization showing a pre-emergence effect on S. frugiperda. The results from these extracts were better than showed by methanol extracts from Cedrela salvadorensis, Myrtillocactus geometrizans and Yucca periculosa samples used as positive controls.
Antifeedant activity against larvae of Spodoptera frugiperda (fall armyworm) assessed reduction of adult emergence at 35 ppm after 21 days relative to control
|
Spodoptera frugiperda
|
0.0
%
|
|
Journal : Ind Crops Prod
Title : Antifeedant, insect growth regulatory and insecticidal effects of Calceolaria talcana (Calceolariaceae) on Drosophila melanogaster and Spodoptera frugiperda
Year : 2013
Volume : 42
First Page : 137
Last Page : 144
Authors : Muñoz E, Carlos L. Cespedes, Claudio Lamilla, Juan Camilo Marin, Julio Alarcon.
Abstract : Extracts from Calceolaria talcana exhibited strong bioinsecticidal effects against Drosophila melanogaster and Spodoptera frugiperda. The most active extract was ethyl acetate and its majority compound verbascoside. The highest lethal concentration to the larvae of S. frugiperda and D. melanogaster was 20.0μg/ml of the ethyl acetate extract with 95.8% and 67.0% of mortality, respectively. Against D. melanogaster the ethyl acetate extract showed the highest activity with 75.05% of antifeedant index at 25μg/ml, methanol extract instead showed 100% to 100μg/ml. At very low concentrations ethyl acetate and methanol extracts induce antifeedant and insect growth regulatory activity showing selective effects as deterrent and on the sclerotization showing a pre-emergence effect on S. frugiperda. The results from these extracts were better than showed by methanol extracts from Cedrela salvadorensis, Myrtillocactus geometrizans and Yucca periculosa samples used as positive controls.
Antifeedant activity against larvae of Spodoptera frugiperda (fall armyworm) assessed reduction of adult emergence at 20 ppm after 21 days relative to control
|
Spodoptera frugiperda
|
0.0
%
|
|
Journal : Ind Crops Prod
Title : Antifeedant, insect growth regulatory and insecticidal effects of Calceolaria talcana (Calceolariaceae) on Drosophila melanogaster and Spodoptera frugiperda
Year : 2013
Volume : 42
First Page : 137
Last Page : 144
Authors : Muñoz E, Carlos L. Cespedes, Claudio Lamilla, Juan Camilo Marin, Julio Alarcon.
Abstract : Extracts from Calceolaria talcana exhibited strong bioinsecticidal effects against Drosophila melanogaster and Spodoptera frugiperda. The most active extract was ethyl acetate and its majority compound verbascoside. The highest lethal concentration to the larvae of S. frugiperda and D. melanogaster was 20.0μg/ml of the ethyl acetate extract with 95.8% and 67.0% of mortality, respectively. Against D. melanogaster the ethyl acetate extract showed the highest activity with 75.05% of antifeedant index at 25μg/ml, methanol extract instead showed 100% to 100μg/ml. At very low concentrations ethyl acetate and methanol extracts induce antifeedant and insect growth regulatory activity showing selective effects as deterrent and on the sclerotization showing a pre-emergence effect on S. frugiperda. The results from these extracts were better than showed by methanol extracts from Cedrela salvadorensis, Myrtillocactus geometrizans and Yucca periculosa samples used as positive controls.
Antifeedant activity against larvae of Spodoptera frugiperda (fall armyworm) assessed reduction of adult emergence at 10 ppm after 21 days relative to control
|
Spodoptera frugiperda
|
0.0
%
|
|
Journal : Ind Crops Prod
Title : Antifeedant, insect growth regulatory and insecticidal effects of Calceolaria talcana (Calceolariaceae) on Drosophila melanogaster and Spodoptera frugiperda
Year : 2013
Volume : 42
First Page : 137
Last Page : 144
Authors : Muñoz E, Carlos L. Cespedes, Claudio Lamilla, Juan Camilo Marin, Julio Alarcon.
Abstract : Extracts from Calceolaria talcana exhibited strong bioinsecticidal effects against Drosophila melanogaster and Spodoptera frugiperda. The most active extract was ethyl acetate and its majority compound verbascoside. The highest lethal concentration to the larvae of S. frugiperda and D. melanogaster was 20.0μg/ml of the ethyl acetate extract with 95.8% and 67.0% of mortality, respectively. Against D. melanogaster the ethyl acetate extract showed the highest activity with 75.05% of antifeedant index at 25μg/ml, methanol extract instead showed 100% to 100μg/ml. At very low concentrations ethyl acetate and methanol extracts induce antifeedant and insect growth regulatory activity showing selective effects as deterrent and on the sclerotization showing a pre-emergence effect on S. frugiperda. The results from these extracts were better than showed by methanol extracts from Cedrela salvadorensis, Myrtillocactus geometrizans and Yucca periculosa samples used as positive controls.
Antifeedant activity against larvae of Spodoptera frugiperda (fall armyworm) assessed reduction of pupation at 50 ppm after 21 days relative to control
|
Spodoptera frugiperda
|
0.0
%
|
|
Journal : Ind Crops Prod
Title : Antifeedant, insect growth regulatory and insecticidal effects of Calceolaria talcana (Calceolariaceae) on Drosophila melanogaster and Spodoptera frugiperda
Year : 2013
Volume : 42
First Page : 137
Last Page : 144
Authors : Muñoz E, Carlos L. Cespedes, Claudio Lamilla, Juan Camilo Marin, Julio Alarcon.
Abstract : Extracts from Calceolaria talcana exhibited strong bioinsecticidal effects against Drosophila melanogaster and Spodoptera frugiperda. The most active extract was ethyl acetate and its majority compound verbascoside. The highest lethal concentration to the larvae of S. frugiperda and D. melanogaster was 20.0μg/ml of the ethyl acetate extract with 95.8% and 67.0% of mortality, respectively. Against D. melanogaster the ethyl acetate extract showed the highest activity with 75.05% of antifeedant index at 25μg/ml, methanol extract instead showed 100% to 100μg/ml. At very low concentrations ethyl acetate and methanol extracts induce antifeedant and insect growth regulatory activity showing selective effects as deterrent and on the sclerotization showing a pre-emergence effect on S. frugiperda. The results from these extracts were better than showed by methanol extracts from Cedrela salvadorensis, Myrtillocactus geometrizans and Yucca periculosa samples used as positive controls.
Antifeedant activity against larvae of Spodoptera frugiperda (fall armyworm) assessed reduction of pupation at 35 ppm after 21 days relative to control
|
Spodoptera frugiperda
|
0.0
%
|
|
Journal : Ind Crops Prod
Title : Antifeedant, insect growth regulatory and insecticidal effects of Calceolaria talcana (Calceolariaceae) on Drosophila melanogaster and Spodoptera frugiperda
Year : 2013
Volume : 42
First Page : 137
Last Page : 144
Authors : Muñoz E, Carlos L. Cespedes, Claudio Lamilla, Juan Camilo Marin, Julio Alarcon.
Abstract : Extracts from Calceolaria talcana exhibited strong bioinsecticidal effects against Drosophila melanogaster and Spodoptera frugiperda. The most active extract was ethyl acetate and its majority compound verbascoside. The highest lethal concentration to the larvae of S. frugiperda and D. melanogaster was 20.0μg/ml of the ethyl acetate extract with 95.8% and 67.0% of mortality, respectively. Against D. melanogaster the ethyl acetate extract showed the highest activity with 75.05% of antifeedant index at 25μg/ml, methanol extract instead showed 100% to 100μg/ml. At very low concentrations ethyl acetate and methanol extracts induce antifeedant and insect growth regulatory activity showing selective effects as deterrent and on the sclerotization showing a pre-emergence effect on S. frugiperda. The results from these extracts were better than showed by methanol extracts from Cedrela salvadorensis, Myrtillocactus geometrizans and Yucca periculosa samples used as positive controls.
Antifeedant activity against larvae of Spodoptera frugiperda (fall armyworm) assessed reduction of pupation at 20 ppm after 21 days relative to control
|
Spodoptera frugiperda
|
3.1
%
|
|
Journal : Ind Crops Prod
Title : Antifeedant, insect growth regulatory and insecticidal effects of Calceolaria talcana (Calceolariaceae) on Drosophila melanogaster and Spodoptera frugiperda
Year : 2013
Volume : 42
First Page : 137
Last Page : 144
Authors : Muñoz E, Carlos L. Cespedes, Claudio Lamilla, Juan Camilo Marin, Julio Alarcon.
Abstract : Extracts from Calceolaria talcana exhibited strong bioinsecticidal effects against Drosophila melanogaster and Spodoptera frugiperda. The most active extract was ethyl acetate and its majority compound verbascoside. The highest lethal concentration to the larvae of S. frugiperda and D. melanogaster was 20.0μg/ml of the ethyl acetate extract with 95.8% and 67.0% of mortality, respectively. Against D. melanogaster the ethyl acetate extract showed the highest activity with 75.05% of antifeedant index at 25μg/ml, methanol extract instead showed 100% to 100μg/ml. At very low concentrations ethyl acetate and methanol extracts induce antifeedant and insect growth regulatory activity showing selective effects as deterrent and on the sclerotization showing a pre-emergence effect on S. frugiperda. The results from these extracts were better than showed by methanol extracts from Cedrela salvadorensis, Myrtillocactus geometrizans and Yucca periculosa samples used as positive controls.
Antifeedant activity against larvae of Spodoptera frugiperda (fall armyworm) assessed reduction of pupation at 10 ppm after 21 days relative to control
|
Spodoptera frugiperda
|
3.1
%
|
|
Journal : Ind Crops Prod
Title : Antifeedant, insect growth regulatory and insecticidal effects of Calceolaria talcana (Calceolariaceae) on Drosophila melanogaster and Spodoptera frugiperda
Year : 2013
Volume : 42
First Page : 137
Last Page : 144
Authors : Muñoz E, Carlos L. Cespedes, Claudio Lamilla, Juan Camilo Marin, Julio Alarcon.
Abstract : Extracts from Calceolaria talcana exhibited strong bioinsecticidal effects against Drosophila melanogaster and Spodoptera frugiperda. The most active extract was ethyl acetate and its majority compound verbascoside. The highest lethal concentration to the larvae of S. frugiperda and D. melanogaster was 20.0μg/ml of the ethyl acetate extract with 95.8% and 67.0% of mortality, respectively. Against D. melanogaster the ethyl acetate extract showed the highest activity with 75.05% of antifeedant index at 25μg/ml, methanol extract instead showed 100% to 100μg/ml. At very low concentrations ethyl acetate and methanol extracts induce antifeedant and insect growth regulatory activity showing selective effects as deterrent and on the sclerotization showing a pre-emergence effect on S. frugiperda. The results from these extracts were better than showed by methanol extracts from Cedrela salvadorensis, Myrtillocactus geometrizans and Yucca periculosa samples used as positive controls.
Antifeedant activity against larvae of Spodoptera frugiperda (fall armyworm) assessed reduction of weight gain at 50 ppm after 21 days relative to control
|
Spodoptera frugiperda
|
0.0
%
|
|
Journal : Ind Crops Prod
Title : Antifeedant, insect growth regulatory and insecticidal effects of Calceolaria talcana (Calceolariaceae) on Drosophila melanogaster and Spodoptera frugiperda
Year : 2013
Volume : 42
First Page : 137
Last Page : 144
Authors : Muñoz E, Carlos L. Cespedes, Claudio Lamilla, Juan Camilo Marin, Julio Alarcon.
Abstract : Extracts from Calceolaria talcana exhibited strong bioinsecticidal effects against Drosophila melanogaster and Spodoptera frugiperda. The most active extract was ethyl acetate and its majority compound verbascoside. The highest lethal concentration to the larvae of S. frugiperda and D. melanogaster was 20.0μg/ml of the ethyl acetate extract with 95.8% and 67.0% of mortality, respectively. Against D. melanogaster the ethyl acetate extract showed the highest activity with 75.05% of antifeedant index at 25μg/ml, methanol extract instead showed 100% to 100μg/ml. At very low concentrations ethyl acetate and methanol extracts induce antifeedant and insect growth regulatory activity showing selective effects as deterrent and on the sclerotization showing a pre-emergence effect on S. frugiperda. The results from these extracts were better than showed by methanol extracts from Cedrela salvadorensis, Myrtillocactus geometrizans and Yucca periculosa samples used as positive controls.
Antifeedant activity against larvae of Spodoptera frugiperda (fall armyworm) assessed reduction of weight gain at 35 ppm after 21 days relative to control
|
Spodoptera frugiperda
|
0.0
%
|
|
Journal : Ind Crops Prod
Title : Antifeedant, insect growth regulatory and insecticidal effects of Calceolaria talcana (Calceolariaceae) on Drosophila melanogaster and Spodoptera frugiperda
Year : 2013
Volume : 42
First Page : 137
Last Page : 144
Authors : Muñoz E, Carlos L. Cespedes, Claudio Lamilla, Juan Camilo Marin, Julio Alarcon.
Abstract : Extracts from Calceolaria talcana exhibited strong bioinsecticidal effects against Drosophila melanogaster and Spodoptera frugiperda. The most active extract was ethyl acetate and its majority compound verbascoside. The highest lethal concentration to the larvae of S. frugiperda and D. melanogaster was 20.0μg/ml of the ethyl acetate extract with 95.8% and 67.0% of mortality, respectively. Against D. melanogaster the ethyl acetate extract showed the highest activity with 75.05% of antifeedant index at 25μg/ml, methanol extract instead showed 100% to 100μg/ml. At very low concentrations ethyl acetate and methanol extracts induce antifeedant and insect growth regulatory activity showing selective effects as deterrent and on the sclerotization showing a pre-emergence effect on S. frugiperda. The results from these extracts were better than showed by methanol extracts from Cedrela salvadorensis, Myrtillocactus geometrizans and Yucca periculosa samples used as positive controls.
Antifeedant activity against larvae of Spodoptera frugiperda (fall armyworm) assessed reduction of weight gain at 20 ppm after 21 days relative to control
|
Spodoptera frugiperda
|
1.35
%
|
|
Journal : Ind Crops Prod
Title : Antifeedant, insect growth regulatory and insecticidal effects of Calceolaria talcana (Calceolariaceae) on Drosophila melanogaster and Spodoptera frugiperda
Year : 2013
Volume : 42
First Page : 137
Last Page : 144
Authors : Muñoz E, Carlos L. Cespedes, Claudio Lamilla, Juan Camilo Marin, Julio Alarcon.
Abstract : Extracts from Calceolaria talcana exhibited strong bioinsecticidal effects against Drosophila melanogaster and Spodoptera frugiperda. The most active extract was ethyl acetate and its majority compound verbascoside. The highest lethal concentration to the larvae of S. frugiperda and D. melanogaster was 20.0μg/ml of the ethyl acetate extract with 95.8% and 67.0% of mortality, respectively. Against D. melanogaster the ethyl acetate extract showed the highest activity with 75.05% of antifeedant index at 25μg/ml, methanol extract instead showed 100% to 100μg/ml. At very low concentrations ethyl acetate and methanol extracts induce antifeedant and insect growth regulatory activity showing selective effects as deterrent and on the sclerotization showing a pre-emergence effect on S. frugiperda. The results from these extracts were better than showed by methanol extracts from Cedrela salvadorensis, Myrtillocactus geometrizans and Yucca periculosa samples used as positive controls.
Antifeedant activity against larvae of Spodoptera frugiperda (fall armyworm) assessed reduction of weight gain at 10 ppm after 21 days relative to control
|
Spodoptera frugiperda
|
2.15
%
|
|
Journal : Ind Crops Prod
Title : Antifeedant, insect growth regulatory and insecticidal effects of Calceolaria talcana (Calceolariaceae) on Drosophila melanogaster and Spodoptera frugiperda
Year : 2013
Volume : 42
First Page : 137
Last Page : 144
Authors : Muñoz E, Carlos L. Cespedes, Claudio Lamilla, Juan Camilo Marin, Julio Alarcon.
Abstract : Extracts from Calceolaria talcana exhibited strong bioinsecticidal effects against Drosophila melanogaster and Spodoptera frugiperda. The most active extract was ethyl acetate and its majority compound verbascoside. The highest lethal concentration to the larvae of S. frugiperda and D. melanogaster was 20.0μg/ml of the ethyl acetate extract with 95.8% and 67.0% of mortality, respectively. Against D. melanogaster the ethyl acetate extract showed the highest activity with 75.05% of antifeedant index at 25μg/ml, methanol extract instead showed 100% to 100μg/ml. At very low concentrations ethyl acetate and methanol extracts induce antifeedant and insect growth regulatory activity showing selective effects as deterrent and on the sclerotization showing a pre-emergence effect on S. frugiperda. The results from these extracts were better than showed by methanol extracts from Cedrela salvadorensis, Myrtillocactus geometrizans and Yucca periculosa samples used as positive controls.
Insecticidal activity against larvae of Drosophila melanogaster assessed as mortality after 72 hr by not choice test
|
Drosophila melanogaster
|
8.08
ug.mL-1
|
|
Journal : Ind Crops Prod
Title : Antifeedant, insect growth regulatory and insecticidal effects of Calceolaria talcana (Calceolariaceae) on Drosophila melanogaster and Spodoptera frugiperda
Year : 2013
Volume : 42
First Page : 137
Last Page : 144
Authors : Muñoz E, Carlos L. Cespedes, Claudio Lamilla, Juan Camilo Marin, Julio Alarcon.
Abstract : Extracts from Calceolaria talcana exhibited strong bioinsecticidal effects against Drosophila melanogaster and Spodoptera frugiperda. The most active extract was ethyl acetate and its majority compound verbascoside. The highest lethal concentration to the larvae of S. frugiperda and D. melanogaster was 20.0μg/ml of the ethyl acetate extract with 95.8% and 67.0% of mortality, respectively. Against D. melanogaster the ethyl acetate extract showed the highest activity with 75.05% of antifeedant index at 25μg/ml, methanol extract instead showed 100% to 100μg/ml. At very low concentrations ethyl acetate and methanol extracts induce antifeedant and insect growth regulatory activity showing selective effects as deterrent and on the sclerotization showing a pre-emergence effect on S. frugiperda. The results from these extracts were better than showed by methanol extracts from Cedrela salvadorensis, Myrtillocactus geometrizans and Yucca periculosa samples used as positive controls.
Insecticidal activity against larvae of Drosophila melanogaster assessed as mortality at 100 ug/ml after 72 hr by not choice test
|
Drosophila melanogaster
|
100.0
%
|
|
Journal : Ind Crops Prod
Title : Antifeedant, insect growth regulatory and insecticidal effects of Calceolaria talcana (Calceolariaceae) on Drosophila melanogaster and Spodoptera frugiperda
Year : 2013
Volume : 42
First Page : 137
Last Page : 144
Authors : Muñoz E, Carlos L. Cespedes, Claudio Lamilla, Juan Camilo Marin, Julio Alarcon.
Abstract : Extracts from Calceolaria talcana exhibited strong bioinsecticidal effects against Drosophila melanogaster and Spodoptera frugiperda. The most active extract was ethyl acetate and its majority compound verbascoside. The highest lethal concentration to the larvae of S. frugiperda and D. melanogaster was 20.0μg/ml of the ethyl acetate extract with 95.8% and 67.0% of mortality, respectively. Against D. melanogaster the ethyl acetate extract showed the highest activity with 75.05% of antifeedant index at 25μg/ml, methanol extract instead showed 100% to 100μg/ml. At very low concentrations ethyl acetate and methanol extracts induce antifeedant and insect growth regulatory activity showing selective effects as deterrent and on the sclerotization showing a pre-emergence effect on S. frugiperda. The results from these extracts were better than showed by methanol extracts from Cedrela salvadorensis, Myrtillocactus geometrizans and Yucca periculosa samples used as positive controls.
Insecticidal activity against larvae of Drosophila melanogaster assessed as mortality at 50 ug/ml after 72 hr by not choice test
|
Drosophila melanogaster
|
100.0
%
|
|
Journal : Ind Crops Prod
Title : Antifeedant, insect growth regulatory and insecticidal effects of Calceolaria talcana (Calceolariaceae) on Drosophila melanogaster and Spodoptera frugiperda
Year : 2013
Volume : 42
First Page : 137
Last Page : 144
Authors : Muñoz E, Carlos L. Cespedes, Claudio Lamilla, Juan Camilo Marin, Julio Alarcon.
Abstract : Extracts from Calceolaria talcana exhibited strong bioinsecticidal effects against Drosophila melanogaster and Spodoptera frugiperda. The most active extract was ethyl acetate and its majority compound verbascoside. The highest lethal concentration to the larvae of S. frugiperda and D. melanogaster was 20.0μg/ml of the ethyl acetate extract with 95.8% and 67.0% of mortality, respectively. Against D. melanogaster the ethyl acetate extract showed the highest activity with 75.05% of antifeedant index at 25μg/ml, methanol extract instead showed 100% to 100μg/ml. At very low concentrations ethyl acetate and methanol extracts induce antifeedant and insect growth regulatory activity showing selective effects as deterrent and on the sclerotization showing a pre-emergence effect on S. frugiperda. The results from these extracts were better than showed by methanol extracts from Cedrela salvadorensis, Myrtillocactus geometrizans and Yucca periculosa samples used as positive controls.
Insecticidal activity against larvae of Drosophila melanogaster assessed as mortality at 20 ug/ml after 72 hr by not choice test
|
Drosophila melanogaster
|
92.0
%
|
|
Journal : Ind Crops Prod
Title : Antifeedant, insect growth regulatory and insecticidal effects of Calceolaria talcana (Calceolariaceae) on Drosophila melanogaster and Spodoptera frugiperda
Year : 2013
Volume : 42
First Page : 137
Last Page : 144
Authors : Muñoz E, Carlos L. Cespedes, Claudio Lamilla, Juan Camilo Marin, Julio Alarcon.
Abstract : Extracts from Calceolaria talcana exhibited strong bioinsecticidal effects against Drosophila melanogaster and Spodoptera frugiperda. The most active extract was ethyl acetate and its majority compound verbascoside. The highest lethal concentration to the larvae of S. frugiperda and D. melanogaster was 20.0μg/ml of the ethyl acetate extract with 95.8% and 67.0% of mortality, respectively. Against D. melanogaster the ethyl acetate extract showed the highest activity with 75.05% of antifeedant index at 25μg/ml, methanol extract instead showed 100% to 100μg/ml. At very low concentrations ethyl acetate and methanol extracts induce antifeedant and insect growth regulatory activity showing selective effects as deterrent and on the sclerotization showing a pre-emergence effect on S. frugiperda. The results from these extracts were better than showed by methanol extracts from Cedrela salvadorensis, Myrtillocactus geometrizans and Yucca periculosa samples used as positive controls.
Antifeedant activity against larvae of Drosophila melanogaster at 10 ug/ml after 12 to 24 hr
|
Drosophila melanogaster
|
89.0
%
|
|
Journal : Ind Crops Prod
Title : Antifeedant, insect growth regulatory and insecticidal effects of Calceolaria talcana (Calceolariaceae) on Drosophila melanogaster and Spodoptera frugiperda
Year : 2013
Volume : 42
First Page : 137
Last Page : 144
Authors : Muñoz E, Carlos L. Cespedes, Claudio Lamilla, Juan Camilo Marin, Julio Alarcon.
Abstract : Extracts from Calceolaria talcana exhibited strong bioinsecticidal effects against Drosophila melanogaster and Spodoptera frugiperda. The most active extract was ethyl acetate and its majority compound verbascoside. The highest lethal concentration to the larvae of S. frugiperda and D. melanogaster was 20.0μg/ml of the ethyl acetate extract with 95.8% and 67.0% of mortality, respectively. Against D. melanogaster the ethyl acetate extract showed the highest activity with 75.05% of antifeedant index at 25μg/ml, methanol extract instead showed 100% to 100μg/ml. At very low concentrations ethyl acetate and methanol extracts induce antifeedant and insect growth regulatory activity showing selective effects as deterrent and on the sclerotization showing a pre-emergence effect on S. frugiperda. The results from these extracts were better than showed by methanol extracts from Cedrela salvadorensis, Myrtillocactus geometrizans and Yucca periculosa samples used as positive controls.
Antifeedant activity against larvae of Drosophila melanogaster at 25 ug/ml after 12 to 24 hr
|
Drosophila melanogaster
|
100.0
%
|
|
Journal : Ind Crops Prod
Title : Antifeedant, insect growth regulatory and insecticidal effects of Calceolaria talcana (Calceolariaceae) on Drosophila melanogaster and Spodoptera frugiperda
Year : 2013
Volume : 42
First Page : 137
Last Page : 144
Authors : Muñoz E, Carlos L. Cespedes, Claudio Lamilla, Juan Camilo Marin, Julio Alarcon.
Abstract : Extracts from Calceolaria talcana exhibited strong bioinsecticidal effects against Drosophila melanogaster and Spodoptera frugiperda. The most active extract was ethyl acetate and its majority compound verbascoside. The highest lethal concentration to the larvae of S. frugiperda and D. melanogaster was 20.0μg/ml of the ethyl acetate extract with 95.8% and 67.0% of mortality, respectively. Against D. melanogaster the ethyl acetate extract showed the highest activity with 75.05% of antifeedant index at 25μg/ml, methanol extract instead showed 100% to 100μg/ml. At very low concentrations ethyl acetate and methanol extracts induce antifeedant and insect growth regulatory activity showing selective effects as deterrent and on the sclerotization showing a pre-emergence effect on S. frugiperda. The results from these extracts were better than showed by methanol extracts from Cedrela salvadorensis, Myrtillocactus geometrizans and Yucca periculosa samples used as positive controls.
Antifeedant activity against larvae of Drosophila melanogaster at 50 ug/ml after 12 to 24 hr
|
Drosophila melanogaster
|
100.0
%
|
|
Journal : Ind Crops Prod
Title : Antifeedant, insect growth regulatory and insecticidal effects of Calceolaria talcana (Calceolariaceae) on Drosophila melanogaster and Spodoptera frugiperda
Year : 2013
Volume : 42
First Page : 137
Last Page : 144
Authors : Muñoz E, Carlos L. Cespedes, Claudio Lamilla, Juan Camilo Marin, Julio Alarcon.
Abstract : Extracts from Calceolaria talcana exhibited strong bioinsecticidal effects against Drosophila melanogaster and Spodoptera frugiperda. The most active extract was ethyl acetate and its majority compound verbascoside. The highest lethal concentration to the larvae of S. frugiperda and D. melanogaster was 20.0μg/ml of the ethyl acetate extract with 95.8% and 67.0% of mortality, respectively. Against D. melanogaster the ethyl acetate extract showed the highest activity with 75.05% of antifeedant index at 25μg/ml, methanol extract instead showed 100% to 100μg/ml. At very low concentrations ethyl acetate and methanol extracts induce antifeedant and insect growth regulatory activity showing selective effects as deterrent and on the sclerotization showing a pre-emergence effect on S. frugiperda. The results from these extracts were better than showed by methanol extracts from Cedrela salvadorensis, Myrtillocactus geometrizans and Yucca periculosa samples used as positive controls.
Antifeedant activity against larvae of Drosophila melanogaster at 100 ug/ml after 12 to 24 hr
|
Drosophila melanogaster
|
100.0
%
|
|
Journal : Ind Crops Prod
Title : Antifeedant, insect growth regulatory and insecticidal effects of Calceolaria talcana (Calceolariaceae) on Drosophila melanogaster and Spodoptera frugiperda
Year : 2013
Volume : 42
First Page : 137
Last Page : 144
Authors : Muñoz E, Carlos L. Cespedes, Claudio Lamilla, Juan Camilo Marin, Julio Alarcon.
Abstract : Extracts from Calceolaria talcana exhibited strong bioinsecticidal effects against Drosophila melanogaster and Spodoptera frugiperda. The most active extract was ethyl acetate and its majority compound verbascoside. The highest lethal concentration to the larvae of S. frugiperda and D. melanogaster was 20.0μg/ml of the ethyl acetate extract with 95.8% and 67.0% of mortality, respectively. Against D. melanogaster the ethyl acetate extract showed the highest activity with 75.05% of antifeedant index at 25μg/ml, methanol extract instead showed 100% to 100μg/ml. At very low concentrations ethyl acetate and methanol extracts induce antifeedant and insect growth regulatory activity showing selective effects as deterrent and on the sclerotization showing a pre-emergence effect on S. frugiperda. The results from these extracts were better than showed by methanol extracts from Cedrela salvadorensis, Myrtillocactus geometrizans and Yucca periculosa samples used as positive controls.
Antifeedant activity against larvae of Spodoptera frugiperda (fall armyworm) at 5 ug/ml after 12 to 24 hr
|
Spodoptera frugiperda
|
78.9
%
|
|
Journal : Ind Crops Prod
Title : Antifeedant, insect growth regulatory and insecticidal effects of Calceolaria talcana (Calceolariaceae) on Drosophila melanogaster and Spodoptera frugiperda
Year : 2013
Volume : 42
First Page : 137
Last Page : 144
Authors : Muñoz E, Carlos L. Cespedes, Claudio Lamilla, Juan Camilo Marin, Julio Alarcon.
Abstract : Extracts from Calceolaria talcana exhibited strong bioinsecticidal effects against Drosophila melanogaster and Spodoptera frugiperda. The most active extract was ethyl acetate and its majority compound verbascoside. The highest lethal concentration to the larvae of S. frugiperda and D. melanogaster was 20.0μg/ml of the ethyl acetate extract with 95.8% and 67.0% of mortality, respectively. Against D. melanogaster the ethyl acetate extract showed the highest activity with 75.05% of antifeedant index at 25μg/ml, methanol extract instead showed 100% to 100μg/ml. At very low concentrations ethyl acetate and methanol extracts induce antifeedant and insect growth regulatory activity showing selective effects as deterrent and on the sclerotization showing a pre-emergence effect on S. frugiperda. The results from these extracts were better than showed by methanol extracts from Cedrela salvadorensis, Myrtillocactus geometrizans and Yucca periculosa samples used as positive controls.
Antifeedant activity against larvae of Spodoptera frugiperda (fall armyworm) at 10 ug/ml after 12 to 24 hr
|
Spodoptera frugiperda
|
88.2
%
|
|
Journal : Ind Crops Prod
Title : Antifeedant, insect growth regulatory and insecticidal effects of Calceolaria talcana (Calceolariaceae) on Drosophila melanogaster and Spodoptera frugiperda
Year : 2013
Volume : 42
First Page : 137
Last Page : 144
Authors : Muñoz E, Carlos L. Cespedes, Claudio Lamilla, Juan Camilo Marin, Julio Alarcon.
Abstract : Extracts from Calceolaria talcana exhibited strong bioinsecticidal effects against Drosophila melanogaster and Spodoptera frugiperda. The most active extract was ethyl acetate and its majority compound verbascoside. The highest lethal concentration to the larvae of S. frugiperda and D. melanogaster was 20.0μg/ml of the ethyl acetate extract with 95.8% and 67.0% of mortality, respectively. Against D. melanogaster the ethyl acetate extract showed the highest activity with 75.05% of antifeedant index at 25μg/ml, methanol extract instead showed 100% to 100μg/ml. At very low concentrations ethyl acetate and methanol extracts induce antifeedant and insect growth regulatory activity showing selective effects as deterrent and on the sclerotization showing a pre-emergence effect on S. frugiperda. The results from these extracts were better than showed by methanol extracts from Cedrela salvadorensis, Myrtillocactus geometrizans and Yucca periculosa samples used as positive controls.
Antifeedant activity against larvae of Spodoptera frugiperda (fall armyworm) at 25 ug/ml after 12 to 24 hr
|
Spodoptera frugiperda
|
96.7
%
|
|
Journal : Ind Crops Prod
Title : Antifeedant, insect growth regulatory and insecticidal effects of Calceolaria talcana (Calceolariaceae) on Drosophila melanogaster and Spodoptera frugiperda
Year : 2013
Volume : 42
First Page : 137
Last Page : 144
Authors : Muñoz E, Carlos L. Cespedes, Claudio Lamilla, Juan Camilo Marin, Julio Alarcon.
Abstract : Extracts from Calceolaria talcana exhibited strong bioinsecticidal effects against Drosophila melanogaster and Spodoptera frugiperda. The most active extract was ethyl acetate and its majority compound verbascoside. The highest lethal concentration to the larvae of S. frugiperda and D. melanogaster was 20.0μg/ml of the ethyl acetate extract with 95.8% and 67.0% of mortality, respectively. Against D. melanogaster the ethyl acetate extract showed the highest activity with 75.05% of antifeedant index at 25μg/ml, methanol extract instead showed 100% to 100μg/ml. At very low concentrations ethyl acetate and methanol extracts induce antifeedant and insect growth regulatory activity showing selective effects as deterrent and on the sclerotization showing a pre-emergence effect on S. frugiperda. The results from these extracts were better than showed by methanol extracts from Cedrela salvadorensis, Myrtillocactus geometrizans and Yucca periculosa samples used as positive controls.
Antifeedant activity against larvae of Spodoptera frugiperda (fall armyworm) at 50 ug/ml after 12 to 24 hr
|
Spodoptera frugiperda
|
100.0
%
|
|
Journal : Ind Crops Prod
Title : Antifeedant, insect growth regulatory and insecticidal effects of Calceolaria talcana (Calceolariaceae) on Drosophila melanogaster and Spodoptera frugiperda
Year : 2013
Volume : 42
First Page : 137
Last Page : 144
Authors : Muñoz E, Carlos L. Cespedes, Claudio Lamilla, Juan Camilo Marin, Julio Alarcon.
Abstract : Extracts from Calceolaria talcana exhibited strong bioinsecticidal effects against Drosophila melanogaster and Spodoptera frugiperda. The most active extract was ethyl acetate and its majority compound verbascoside. The highest lethal concentration to the larvae of S. frugiperda and D. melanogaster was 20.0μg/ml of the ethyl acetate extract with 95.8% and 67.0% of mortality, respectively. Against D. melanogaster the ethyl acetate extract showed the highest activity with 75.05% of antifeedant index at 25μg/ml, methanol extract instead showed 100% to 100μg/ml. At very low concentrations ethyl acetate and methanol extracts induce antifeedant and insect growth regulatory activity showing selective effects as deterrent and on the sclerotization showing a pre-emergence effect on S. frugiperda. The results from these extracts were better than showed by methanol extracts from Cedrela salvadorensis, Myrtillocactus geometrizans and Yucca periculosa samples used as positive controls.
Antifeedant activity against larvae of Spodoptera frugiperda (fall armyworm) at 100 ug/ml after 12 to 24 hr
|
Spodoptera frugiperda
|
100.0
%
|
|
Journal : Ind Crops Prod
Title : Antifeedant, insect growth regulatory and insecticidal effects of Calceolaria talcana (Calceolariaceae) on Drosophila melanogaster and Spodoptera frugiperda
Year : 2013
Volume : 42
First Page : 137
Last Page : 144
Authors : Muñoz E, Carlos L. Cespedes, Claudio Lamilla, Juan Camilo Marin, Julio Alarcon.
Abstract : Extracts from Calceolaria talcana exhibited strong bioinsecticidal effects against Drosophila melanogaster and Spodoptera frugiperda. The most active extract was ethyl acetate and its majority compound verbascoside. The highest lethal concentration to the larvae of S. frugiperda and D. melanogaster was 20.0μg/ml of the ethyl acetate extract with 95.8% and 67.0% of mortality, respectively. Against D. melanogaster the ethyl acetate extract showed the highest activity with 75.05% of antifeedant index at 25μg/ml, methanol extract instead showed 100% to 100μg/ml. At very low concentrations ethyl acetate and methanol extracts induce antifeedant and insect growth regulatory activity showing selective effects as deterrent and on the sclerotization showing a pre-emergence effect on S. frugiperda. The results from these extracts were better than showed by methanol extracts from Cedrela salvadorensis, Myrtillocactus geometrizans and Yucca periculosa samples used as positive controls.
Growth inhibitory activity against po dosed fourth-instar larvae of Spodoptera frugiperda (fall armyworm) assessed as proportion of prothetely appearance of precocious pupal structure in larvae after 48 to 72 hr
|
Spodoptera frugiperda
|
30.0
%
|
|
Journal : Ind Crops Prod
Title : Insect growth regulatory effects by diterpenes from Calceolaria talcana Grau & Ehrhart (Calceolariaceae: Scrophulariaceae) against Spodoptera frugiperda and Drosophila melanogaster
Year : 2013
Volume : 45
First Page : 283
Last Page : 292
Authors : Muñoz E, Carlos L. Céspedes, Daniela Escalona, Juan R. Salazar, Julio Alarcon.
Abstract : The n-hexane extract from aerial parts of Calceolaria talcana (Calceolariaceae, formerly Scrophulariaceae) afforded 1,10-α-cyclopropyl-4,13-dimethyl-19-α-hydroxy-9-epi-ent-7,15-isopimaradiene (1,10-cyclopropyl-9-epi-ent-isopimarol) 1, and 19α-hydroxy-8,11,13-abietatriene 2 together with other known triterpenes and naphthoquinones. These natural products together with n-hexane extract and several fractions showed insecticidal and insect growth regulatory activity against fall armyworm (Spodoptera frugiperda, Lepidoptera: Noctuidae), and fruit fly (Drosophila melanogaster, Diptera: Drosophilidae), insect pests of corn and fruits, respectively. The most active samples were a mixture (M1) of the diterpenes 1+2 (6:4) that showed insecticidal activity between 10 and 20ppm. Additionally, a mixture of triterpenes 3–5 (M2), fraction 5 (F-5), a mixture of two naphthoquinones 6, 7 (M3), and the n-hexane extract, which had significant effects between 20.0 and 35.0μg/mL in diets. Almost all samples were insecticidal with lethal doses between 35 and 50μg/mL. Our results indicate that these compounds at low concentrations appear to have selective effects on the pre-emergence metabolism of the insect. The results were fully comparable to known natural insect growth inhibitors such as gedunin, MeOH-Cedrela and MeOH-Yucca extracts, suggesting a possible role as natural insecticidal agents.
Growth inhibitory activity against po dosed Spodoptera frugiperda (fall armyworm) larvae assessed as promotion of apolysis to fifth instar with ecdysis inhibition at 5 to 20 ug/ml
|
Spodoptera frugiperda
|
None
|
|
Journal : Ind Crops Prod
Title : Insect growth regulatory effects by diterpenes from Calceolaria talcana Grau & Ehrhart (Calceolariaceae: Scrophulariaceae) against Spodoptera frugiperda and Drosophila melanogaster
Year : 2013
Volume : 45
First Page : 283
Last Page : 292
Authors : Muñoz E, Carlos L. Céspedes, Daniela Escalona, Juan R. Salazar, Julio Alarcon.
Abstract : The n-hexane extract from aerial parts of Calceolaria talcana (Calceolariaceae, formerly Scrophulariaceae) afforded 1,10-α-cyclopropyl-4,13-dimethyl-19-α-hydroxy-9-epi-ent-7,15-isopimaradiene (1,10-cyclopropyl-9-epi-ent-isopimarol) 1, and 19α-hydroxy-8,11,13-abietatriene 2 together with other known triterpenes and naphthoquinones. These natural products together with n-hexane extract and several fractions showed insecticidal and insect growth regulatory activity against fall armyworm (Spodoptera frugiperda, Lepidoptera: Noctuidae), and fruit fly (Drosophila melanogaster, Diptera: Drosophilidae), insect pests of corn and fruits, respectively. The most active samples were a mixture (M1) of the diterpenes 1+2 (6:4) that showed insecticidal activity between 10 and 20ppm. Additionally, a mixture of triterpenes 3–5 (M2), fraction 5 (F-5), a mixture of two naphthoquinones 6, 7 (M3), and the n-hexane extract, which had significant effects between 20.0 and 35.0μg/mL in diets. Almost all samples were insecticidal with lethal doses between 35 and 50μg/mL. Our results indicate that these compounds at low concentrations appear to have selective effects on the pre-emergence metabolism of the insect. The results were fully comparable to known natural insect growth inhibitors such as gedunin, MeOH-Cedrela and MeOH-Yucca extracts, suggesting a possible role as natural insecticidal agents.
Growth inhibitory activity against Spodoptera frugiperda (fall armyworm) larvae fed with compound containing diet assessed as relative growth index at 25 ug/ml (Rvb = 1.0 no_unit)
|
Spodoptera frugiperda
|
0.45
|
|
Journal : Ind Crops Prod
Title : Insect growth regulatory effects by diterpenes from Calceolaria talcana Grau & Ehrhart (Calceolariaceae: Scrophulariaceae) against Spodoptera frugiperda and Drosophila melanogaster
Year : 2013
Volume : 45
First Page : 283
Last Page : 292
Authors : Muñoz E, Carlos L. Céspedes, Daniela Escalona, Juan R. Salazar, Julio Alarcon.
Abstract : The n-hexane extract from aerial parts of Calceolaria talcana (Calceolariaceae, formerly Scrophulariaceae) afforded 1,10-α-cyclopropyl-4,13-dimethyl-19-α-hydroxy-9-epi-ent-7,15-isopimaradiene (1,10-cyclopropyl-9-epi-ent-isopimarol) 1, and 19α-hydroxy-8,11,13-abietatriene 2 together with other known triterpenes and naphthoquinones. These natural products together with n-hexane extract and several fractions showed insecticidal and insect growth regulatory activity against fall armyworm (Spodoptera frugiperda, Lepidoptera: Noctuidae), and fruit fly (Drosophila melanogaster, Diptera: Drosophilidae), insect pests of corn and fruits, respectively. The most active samples were a mixture (M1) of the diterpenes 1+2 (6:4) that showed insecticidal activity between 10 and 20ppm. Additionally, a mixture of triterpenes 3–5 (M2), fraction 5 (F-5), a mixture of two naphthoquinones 6, 7 (M3), and the n-hexane extract, which had significant effects between 20.0 and 35.0μg/mL in diets. Almost all samples were insecticidal with lethal doses between 35 and 50μg/mL. Our results indicate that these compounds at low concentrations appear to have selective effects on the pre-emergence metabolism of the insect. The results were fully comparable to known natural insect growth inhibitors such as gedunin, MeOH-Cedrela and MeOH-Yucca extracts, suggesting a possible role as natural insecticidal agents.
Growth inhibitory activity against Spodoptera frugiperda (fall armyworm) larvae fed with compound containing diet assessed as growth index at 25 ug/ml (Rvb = 0.95 +/-0.02 no_unit)
|
Spodoptera frugiperda
|
0.41
|
|
Journal : Ind Crops Prod
Title : Insect growth regulatory effects by diterpenes from Calceolaria talcana Grau & Ehrhart (Calceolariaceae: Scrophulariaceae) against Spodoptera frugiperda and Drosophila melanogaster
Year : 2013
Volume : 45
First Page : 283
Last Page : 292
Authors : Muñoz E, Carlos L. Céspedes, Daniela Escalona, Juan R. Salazar, Julio Alarcon.
Abstract : The n-hexane extract from aerial parts of Calceolaria talcana (Calceolariaceae, formerly Scrophulariaceae) afforded 1,10-α-cyclopropyl-4,13-dimethyl-19-α-hydroxy-9-epi-ent-7,15-isopimaradiene (1,10-cyclopropyl-9-epi-ent-isopimarol) 1, and 19α-hydroxy-8,11,13-abietatriene 2 together with other known triterpenes and naphthoquinones. These natural products together with n-hexane extract and several fractions showed insecticidal and insect growth regulatory activity against fall armyworm (Spodoptera frugiperda, Lepidoptera: Noctuidae), and fruit fly (Drosophila melanogaster, Diptera: Drosophilidae), insect pests of corn and fruits, respectively. The most active samples were a mixture (M1) of the diterpenes 1+2 (6:4) that showed insecticidal activity between 10 and 20ppm. Additionally, a mixture of triterpenes 3–5 (M2), fraction 5 (F-5), a mixture of two naphthoquinones 6, 7 (M3), and the n-hexane extract, which had significant effects between 20.0 and 35.0μg/mL in diets. Almost all samples were insecticidal with lethal doses between 35 and 50μg/mL. Our results indicate that these compounds at low concentrations appear to have selective effects on the pre-emergence metabolism of the insect. The results were fully comparable to known natural insect growth inhibitors such as gedunin, MeOH-Cedrela and MeOH-Yucca extracts, suggesting a possible role as natural insecticidal agents.
Insecticidal activity against Drosophila melanogaster larvae fed with compound incorporated diet assessed as mortality after 72 hr by not choice test
|
Drosophila melanogaster
|
8.08
ug.mL-1
|
|
Journal : Ind Crops Prod
Title : Insect growth regulatory effects by diterpenes from Calceolaria talcana Grau & Ehrhart (Calceolariaceae: Scrophulariaceae) against Spodoptera frugiperda and Drosophila melanogaster
Year : 2013
Volume : 45
First Page : 283
Last Page : 292
Authors : Muñoz E, Carlos L. Céspedes, Daniela Escalona, Juan R. Salazar, Julio Alarcon.
Abstract : The n-hexane extract from aerial parts of Calceolaria talcana (Calceolariaceae, formerly Scrophulariaceae) afforded 1,10-α-cyclopropyl-4,13-dimethyl-19-α-hydroxy-9-epi-ent-7,15-isopimaradiene (1,10-cyclopropyl-9-epi-ent-isopimarol) 1, and 19α-hydroxy-8,11,13-abietatriene 2 together with other known triterpenes and naphthoquinones. These natural products together with n-hexane extract and several fractions showed insecticidal and insect growth regulatory activity against fall armyworm (Spodoptera frugiperda, Lepidoptera: Noctuidae), and fruit fly (Drosophila melanogaster, Diptera: Drosophilidae), insect pests of corn and fruits, respectively. The most active samples were a mixture (M1) of the diterpenes 1+2 (6:4) that showed insecticidal activity between 10 and 20ppm. Additionally, a mixture of triterpenes 3–5 (M2), fraction 5 (F-5), a mixture of two naphthoquinones 6, 7 (M3), and the n-hexane extract, which had significant effects between 20.0 and 35.0μg/mL in diets. Almost all samples were insecticidal with lethal doses between 35 and 50μg/mL. Our results indicate that these compounds at low concentrations appear to have selective effects on the pre-emergence metabolism of the insect. The results were fully comparable to known natural insect growth inhibitors such as gedunin, MeOH-Cedrela and MeOH-Yucca extracts, suggesting a possible role as natural insecticidal agents.
Growth inhibitory activity against Spodoptera frugiperda (fall armyworm) larvae fed with compound containing diet assessed as relative growth index at 50 ug/ml (Rvb = 1.0 no_unit)
|
Spodoptera frugiperda
|
0.1
|
|
Journal : Ind Crops Prod
Title : Insect growth regulatory effects by diterpenes from Calceolaria talcana Grau & Ehrhart (Calceolariaceae: Scrophulariaceae) against Spodoptera frugiperda and Drosophila melanogaster
Year : 2013
Volume : 45
First Page : 283
Last Page : 292
Authors : Muñoz E, Carlos L. Céspedes, Daniela Escalona, Juan R. Salazar, Julio Alarcon.
Abstract : The n-hexane extract from aerial parts of Calceolaria talcana (Calceolariaceae, formerly Scrophulariaceae) afforded 1,10-α-cyclopropyl-4,13-dimethyl-19-α-hydroxy-9-epi-ent-7,15-isopimaradiene (1,10-cyclopropyl-9-epi-ent-isopimarol) 1, and 19α-hydroxy-8,11,13-abietatriene 2 together with other known triterpenes and naphthoquinones. These natural products together with n-hexane extract and several fractions showed insecticidal and insect growth regulatory activity against fall armyworm (Spodoptera frugiperda, Lepidoptera: Noctuidae), and fruit fly (Drosophila melanogaster, Diptera: Drosophilidae), insect pests of corn and fruits, respectively. The most active samples were a mixture (M1) of the diterpenes 1+2 (6:4) that showed insecticidal activity between 10 and 20ppm. Additionally, a mixture of triterpenes 3–5 (M2), fraction 5 (F-5), a mixture of two naphthoquinones 6, 7 (M3), and the n-hexane extract, which had significant effects between 20.0 and 35.0μg/mL in diets. Almost all samples were insecticidal with lethal doses between 35 and 50μg/mL. Our results indicate that these compounds at low concentrations appear to have selective effects on the pre-emergence metabolism of the insect. The results were fully comparable to known natural insect growth inhibitors such as gedunin, MeOH-Cedrela and MeOH-Yucca extracts, suggesting a possible role as natural insecticidal agents.
Growth inhibitory activity against Spodoptera frugiperda (fall armyworm) larvae fed with compound containing diet assessed as relative growth index at 35 ug/ml (Rvb = 1.0 no_unit)
|
Spodoptera frugiperda
|
0.15
|
|
Journal : Ind Crops Prod
Title : Insect growth regulatory effects by diterpenes from Calceolaria talcana Grau & Ehrhart (Calceolariaceae: Scrophulariaceae) against Spodoptera frugiperda and Drosophila melanogaster
Year : 2013
Volume : 45
First Page : 283
Last Page : 292
Authors : Muñoz E, Carlos L. Céspedes, Daniela Escalona, Juan R. Salazar, Julio Alarcon.
Abstract : The n-hexane extract from aerial parts of Calceolaria talcana (Calceolariaceae, formerly Scrophulariaceae) afforded 1,10-α-cyclopropyl-4,13-dimethyl-19-α-hydroxy-9-epi-ent-7,15-isopimaradiene (1,10-cyclopropyl-9-epi-ent-isopimarol) 1, and 19α-hydroxy-8,11,13-abietatriene 2 together with other known triterpenes and naphthoquinones. These natural products together with n-hexane extract and several fractions showed insecticidal and insect growth regulatory activity against fall armyworm (Spodoptera frugiperda, Lepidoptera: Noctuidae), and fruit fly (Drosophila melanogaster, Diptera: Drosophilidae), insect pests of corn and fruits, respectively. The most active samples were a mixture (M1) of the diterpenes 1+2 (6:4) that showed insecticidal activity between 10 and 20ppm. Additionally, a mixture of triterpenes 3–5 (M2), fraction 5 (F-5), a mixture of two naphthoquinones 6, 7 (M3), and the n-hexane extract, which had significant effects between 20.0 and 35.0μg/mL in diets. Almost all samples were insecticidal with lethal doses between 35 and 50μg/mL. Our results indicate that these compounds at low concentrations appear to have selective effects on the pre-emergence metabolism of the insect. The results were fully comparable to known natural insect growth inhibitors such as gedunin, MeOH-Cedrela and MeOH-Yucca extracts, suggesting a possible role as natural insecticidal agents.
Growth inhibitory activity against Spodoptera frugiperda (fall armyworm) larvae fed with compound containing diet assessed as relative growth index at 10 ug/ml (Rvb = 1.0 no_unit)
|
Spodoptera frugiperda
|
0.67
|
|
Journal : Ind Crops Prod
Title : Insect growth regulatory effects by diterpenes from Calceolaria talcana Grau & Ehrhart (Calceolariaceae: Scrophulariaceae) against Spodoptera frugiperda and Drosophila melanogaster
Year : 2013
Volume : 45
First Page : 283
Last Page : 292
Authors : Muñoz E, Carlos L. Céspedes, Daniela Escalona, Juan R. Salazar, Julio Alarcon.
Abstract : The n-hexane extract from aerial parts of Calceolaria talcana (Calceolariaceae, formerly Scrophulariaceae) afforded 1,10-α-cyclopropyl-4,13-dimethyl-19-α-hydroxy-9-epi-ent-7,15-isopimaradiene (1,10-cyclopropyl-9-epi-ent-isopimarol) 1, and 19α-hydroxy-8,11,13-abietatriene 2 together with other known triterpenes and naphthoquinones. These natural products together with n-hexane extract and several fractions showed insecticidal and insect growth regulatory activity against fall armyworm (Spodoptera frugiperda, Lepidoptera: Noctuidae), and fruit fly (Drosophila melanogaster, Diptera: Drosophilidae), insect pests of corn and fruits, respectively. The most active samples were a mixture (M1) of the diterpenes 1+2 (6:4) that showed insecticidal activity between 10 and 20ppm. Additionally, a mixture of triterpenes 3–5 (M2), fraction 5 (F-5), a mixture of two naphthoquinones 6, 7 (M3), and the n-hexane extract, which had significant effects between 20.0 and 35.0μg/mL in diets. Almost all samples were insecticidal with lethal doses between 35 and 50μg/mL. Our results indicate that these compounds at low concentrations appear to have selective effects on the pre-emergence metabolism of the insect. The results were fully comparable to known natural insect growth inhibitors such as gedunin, MeOH-Cedrela and MeOH-Yucca extracts, suggesting a possible role as natural insecticidal agents.
Growth inhibitory activity against Spodoptera frugiperda (fall armyworm) larvae fed with compound containing diet assessed as growth index at 50 ug/ml (Rvb = 0.95 +/-0.02 no_unit)
|
Spodoptera frugiperda
|
0.07
|
|
Journal : Ind Crops Prod
Title : Insect growth regulatory effects by diterpenes from Calceolaria talcana Grau & Ehrhart (Calceolariaceae: Scrophulariaceae) against Spodoptera frugiperda and Drosophila melanogaster
Year : 2013
Volume : 45
First Page : 283
Last Page : 292
Authors : Muñoz E, Carlos L. Céspedes, Daniela Escalona, Juan R. Salazar, Julio Alarcon.
Abstract : The n-hexane extract from aerial parts of Calceolaria talcana (Calceolariaceae, formerly Scrophulariaceae) afforded 1,10-α-cyclopropyl-4,13-dimethyl-19-α-hydroxy-9-epi-ent-7,15-isopimaradiene (1,10-cyclopropyl-9-epi-ent-isopimarol) 1, and 19α-hydroxy-8,11,13-abietatriene 2 together with other known triterpenes and naphthoquinones. These natural products together with n-hexane extract and several fractions showed insecticidal and insect growth regulatory activity against fall armyworm (Spodoptera frugiperda, Lepidoptera: Noctuidae), and fruit fly (Drosophila melanogaster, Diptera: Drosophilidae), insect pests of corn and fruits, respectively. The most active samples were a mixture (M1) of the diterpenes 1+2 (6:4) that showed insecticidal activity between 10 and 20ppm. Additionally, a mixture of triterpenes 3–5 (M2), fraction 5 (F-5), a mixture of two naphthoquinones 6, 7 (M3), and the n-hexane extract, which had significant effects between 20.0 and 35.0μg/mL in diets. Almost all samples were insecticidal with lethal doses between 35 and 50μg/mL. Our results indicate that these compounds at low concentrations appear to have selective effects on the pre-emergence metabolism of the insect. The results were fully comparable to known natural insect growth inhibitors such as gedunin, MeOH-Cedrela and MeOH-Yucca extracts, suggesting a possible role as natural insecticidal agents.
Growth inhibitory activity against Spodoptera frugiperda (fall armyworm) larvae fed with compound containing diet assessed as growth index at 35 ug/ml (Rvb = 0.95 +/-0.02 no_unit)
|
Spodoptera frugiperda
|
0.09
|
|
Journal : Ind Crops Prod
Title : Insect growth regulatory effects by diterpenes from Calceolaria talcana Grau & Ehrhart (Calceolariaceae: Scrophulariaceae) against Spodoptera frugiperda and Drosophila melanogaster
Year : 2013
Volume : 45
First Page : 283
Last Page : 292
Authors : Muñoz E, Carlos L. Céspedes, Daniela Escalona, Juan R. Salazar, Julio Alarcon.
Abstract : The n-hexane extract from aerial parts of Calceolaria talcana (Calceolariaceae, formerly Scrophulariaceae) afforded 1,10-α-cyclopropyl-4,13-dimethyl-19-α-hydroxy-9-epi-ent-7,15-isopimaradiene (1,10-cyclopropyl-9-epi-ent-isopimarol) 1, and 19α-hydroxy-8,11,13-abietatriene 2 together with other known triterpenes and naphthoquinones. These natural products together with n-hexane extract and several fractions showed insecticidal and insect growth regulatory activity against fall armyworm (Spodoptera frugiperda, Lepidoptera: Noctuidae), and fruit fly (Drosophila melanogaster, Diptera: Drosophilidae), insect pests of corn and fruits, respectively. The most active samples were a mixture (M1) of the diterpenes 1+2 (6:4) that showed insecticidal activity between 10 and 20ppm. Additionally, a mixture of triterpenes 3–5 (M2), fraction 5 (F-5), a mixture of two naphthoquinones 6, 7 (M3), and the n-hexane extract, which had significant effects between 20.0 and 35.0μg/mL in diets. Almost all samples were insecticidal with lethal doses between 35 and 50μg/mL. Our results indicate that these compounds at low concentrations appear to have selective effects on the pre-emergence metabolism of the insect. The results were fully comparable to known natural insect growth inhibitors such as gedunin, MeOH-Cedrela and MeOH-Yucca extracts, suggesting a possible role as natural insecticidal agents.
Growth inhibitory activity against Spodoptera frugiperda (fall armyworm) larvae fed with compound containing diet assessed as growth index at 10 ug/ml (Rvb = 0.95 +/-0.02 no_unit)
|
Spodoptera frugiperda
|
0.66
|
|
Journal : Ind Crops Prod
Title : Insect growth regulatory effects by diterpenes from Calceolaria talcana Grau & Ehrhart (Calceolariaceae: Scrophulariaceae) against Spodoptera frugiperda and Drosophila melanogaster
Year : 2013
Volume : 45
First Page : 283
Last Page : 292
Authors : Muñoz E, Carlos L. Céspedes, Daniela Escalona, Juan R. Salazar, Julio Alarcon.
Abstract : The n-hexane extract from aerial parts of Calceolaria talcana (Calceolariaceae, formerly Scrophulariaceae) afforded 1,10-α-cyclopropyl-4,13-dimethyl-19-α-hydroxy-9-epi-ent-7,15-isopimaradiene (1,10-cyclopropyl-9-epi-ent-isopimarol) 1, and 19α-hydroxy-8,11,13-abietatriene 2 together with other known triterpenes and naphthoquinones. These natural products together with n-hexane extract and several fractions showed insecticidal and insect growth regulatory activity against fall armyworm (Spodoptera frugiperda, Lepidoptera: Noctuidae), and fruit fly (Drosophila melanogaster, Diptera: Drosophilidae), insect pests of corn and fruits, respectively. The most active samples were a mixture (M1) of the diterpenes 1+2 (6:4) that showed insecticidal activity between 10 and 20ppm. Additionally, a mixture of triterpenes 3–5 (M2), fraction 5 (F-5), a mixture of two naphthoquinones 6, 7 (M3), and the n-hexane extract, which had significant effects between 20.0 and 35.0μg/mL in diets. Almost all samples were insecticidal with lethal doses between 35 and 50μg/mL. Our results indicate that these compounds at low concentrations appear to have selective effects on the pre-emergence metabolism of the insect. The results were fully comparable to known natural insect growth inhibitors such as gedunin, MeOH-Cedrela and MeOH-Yucca extracts, suggesting a possible role as natural insecticidal agents.
Insecticidal activity against Drosophila melanogaster larvae fed with compound incorporated diet assessed as mortality at 100 ug/ml after 72 hr by not choice test (Rvb = 0%)
|
Drosophila melanogaster
|
100.0
%
|
|
Journal : Ind Crops Prod
Title : Insect growth regulatory effects by diterpenes from Calceolaria talcana Grau & Ehrhart (Calceolariaceae: Scrophulariaceae) against Spodoptera frugiperda and Drosophila melanogaster
Year : 2013
Volume : 45
First Page : 283
Last Page : 292
Authors : Muñoz E, Carlos L. Céspedes, Daniela Escalona, Juan R. Salazar, Julio Alarcon.
Abstract : The n-hexane extract from aerial parts of Calceolaria talcana (Calceolariaceae, formerly Scrophulariaceae) afforded 1,10-α-cyclopropyl-4,13-dimethyl-19-α-hydroxy-9-epi-ent-7,15-isopimaradiene (1,10-cyclopropyl-9-epi-ent-isopimarol) 1, and 19α-hydroxy-8,11,13-abietatriene 2 together with other known triterpenes and naphthoquinones. These natural products together with n-hexane extract and several fractions showed insecticidal and insect growth regulatory activity against fall armyworm (Spodoptera frugiperda, Lepidoptera: Noctuidae), and fruit fly (Drosophila melanogaster, Diptera: Drosophilidae), insect pests of corn and fruits, respectively. The most active samples were a mixture (M1) of the diterpenes 1+2 (6:4) that showed insecticidal activity between 10 and 20ppm. Additionally, a mixture of triterpenes 3–5 (M2), fraction 5 (F-5), a mixture of two naphthoquinones 6, 7 (M3), and the n-hexane extract, which had significant effects between 20.0 and 35.0μg/mL in diets. Almost all samples were insecticidal with lethal doses between 35 and 50μg/mL. Our results indicate that these compounds at low concentrations appear to have selective effects on the pre-emergence metabolism of the insect. The results were fully comparable to known natural insect growth inhibitors such as gedunin, MeOH-Cedrela and MeOH-Yucca extracts, suggesting a possible role as natural insecticidal agents.
Insecticidal activity against Drosophila melanogaster larvae fed with compound incorporated diet assessed as mortality at 50 ug/ml after 72 hr by not choice test (Rvb = 0%)
|
Drosophila melanogaster
|
100.0
%
|
|
Journal : Ind Crops Prod
Title : Insect growth regulatory effects by diterpenes from Calceolaria talcana Grau & Ehrhart (Calceolariaceae: Scrophulariaceae) against Spodoptera frugiperda and Drosophila melanogaster
Year : 2013
Volume : 45
First Page : 283
Last Page : 292
Authors : Muñoz E, Carlos L. Céspedes, Daniela Escalona, Juan R. Salazar, Julio Alarcon.
Abstract : The n-hexane extract from aerial parts of Calceolaria talcana (Calceolariaceae, formerly Scrophulariaceae) afforded 1,10-α-cyclopropyl-4,13-dimethyl-19-α-hydroxy-9-epi-ent-7,15-isopimaradiene (1,10-cyclopropyl-9-epi-ent-isopimarol) 1, and 19α-hydroxy-8,11,13-abietatriene 2 together with other known triterpenes and naphthoquinones. These natural products together with n-hexane extract and several fractions showed insecticidal and insect growth regulatory activity against fall armyworm (Spodoptera frugiperda, Lepidoptera: Noctuidae), and fruit fly (Drosophila melanogaster, Diptera: Drosophilidae), insect pests of corn and fruits, respectively. The most active samples were a mixture (M1) of the diterpenes 1+2 (6:4) that showed insecticidal activity between 10 and 20ppm. Additionally, a mixture of triterpenes 3–5 (M2), fraction 5 (F-5), a mixture of two naphthoquinones 6, 7 (M3), and the n-hexane extract, which had significant effects between 20.0 and 35.0μg/mL in diets. Almost all samples were insecticidal with lethal doses between 35 and 50μg/mL. Our results indicate that these compounds at low concentrations appear to have selective effects on the pre-emergence metabolism of the insect. The results were fully comparable to known natural insect growth inhibitors such as gedunin, MeOH-Cedrela and MeOH-Yucca extracts, suggesting a possible role as natural insecticidal agents.
Insecticidal activity against Drosophila melanogaster larvae fed with compound incorporated diet assessed as mortality at 20 ug/ml after 72 hr by not choice test (Rvb = 0%)
|
Drosophila melanogaster
|
92.0
%
|
|
Journal : Ind Crops Prod
Title : Insect growth regulatory effects by diterpenes from Calceolaria talcana Grau & Ehrhart (Calceolariaceae: Scrophulariaceae) against Spodoptera frugiperda and Drosophila melanogaster
Year : 2013
Volume : 45
First Page : 283
Last Page : 292
Authors : Muñoz E, Carlos L. Céspedes, Daniela Escalona, Juan R. Salazar, Julio Alarcon.
Abstract : The n-hexane extract from aerial parts of Calceolaria talcana (Calceolariaceae, formerly Scrophulariaceae) afforded 1,10-α-cyclopropyl-4,13-dimethyl-19-α-hydroxy-9-epi-ent-7,15-isopimaradiene (1,10-cyclopropyl-9-epi-ent-isopimarol) 1, and 19α-hydroxy-8,11,13-abietatriene 2 together with other known triterpenes and naphthoquinones. These natural products together with n-hexane extract and several fractions showed insecticidal and insect growth regulatory activity against fall armyworm (Spodoptera frugiperda, Lepidoptera: Noctuidae), and fruit fly (Drosophila melanogaster, Diptera: Drosophilidae), insect pests of corn and fruits, respectively. The most active samples were a mixture (M1) of the diterpenes 1+2 (6:4) that showed insecticidal activity between 10 and 20ppm. Additionally, a mixture of triterpenes 3–5 (M2), fraction 5 (F-5), a mixture of two naphthoquinones 6, 7 (M3), and the n-hexane extract, which had significant effects between 20.0 and 35.0μg/mL in diets. Almost all samples were insecticidal with lethal doses between 35 and 50μg/mL. Our results indicate that these compounds at low concentrations appear to have selective effects on the pre-emergence metabolism of the insect. The results were fully comparable to known natural insect growth inhibitors such as gedunin, MeOH-Cedrela and MeOH-Yucca extracts, suggesting a possible role as natural insecticidal agents.