Stomach toxicity against third-instar Mythimna separata (Oriental armyworm) in compound treated fresh corn leaves assessed as insecticidal activity at 200 mg/L measured after 4 days by leaf-dip method
|
Mythimna separata
|
100.0
%
|
|
Journal : J Agric Food Chem
Year : 2011
Volume : 59
Issue : 2
First Page : 635
Last Page : 644
Stomach toxicity against third-instar Mythimna separata (Oriental armyworm) in compound treated fresh corn leaves assessed as insecticidal activity at 100 mg/L measured after 4 days by leaf-dip method
|
Mythimna separata
|
100.0
%
|
|
Journal : J Agric Food Chem
Year : 2011
Volume : 59
Issue : 2
First Page : 635
Last Page : 644
Stomach toxicity against third-instar Mythimna separata (Oriental armyworm) in compound treated fresh corn leaves assessed as insecticidal activity at 50 mg/L measured after 4 days by leaf-dip method
|
Mythimna separata
|
100.0
%
|
|
Journal : J Agric Food Chem
Year : 2011
Volume : 59
Issue : 2
First Page : 635
Last Page : 644
Stomach toxicity against third-instar Mythimna separata (Oriental armyworm) in compound treated fresh corn leaves assessed as insecticidal activity at 25 mg/L measured after 4 days by leaf-dip method
|
Mythimna separata
|
100.0
%
|
|
Journal : J Agric Food Chem
Year : 2011
Volume : 59
Issue : 2
First Page : 635
Last Page : 644
Stomach toxicity against third-instar Mythimna separata (Oriental armyworm) in compound treated fresh corn leaves assessed as insecticidal activity at 10 mg/L measured after 4 days by leaf-dip method
|
Mythimna separata
|
100.0
%
|
|
Journal : J Agric Food Chem
Year : 2011
Volume : 59
Issue : 2
First Page : 635
Last Page : 644
Stomach toxicity against third-instar Spodoptera exigua in compound treated fresh cabbage leaves assessed as insecticidal activity at 200 mg/L measured after 3 days by leaf-dip method
|
Spodoptera exigua
|
100.0
%
|
|
Journal : J Agric Food Chem
Year : 2011
Volume : 59
Issue : 2
First Page : 635
Last Page : 644
Stomach toxicity against third-instar Spodoptera exigua in compound treated fresh cabbage leaves assessed as insecticidal activity at 100 mg/L measured after 3 days by leaf-dip method
|
Spodoptera exigua
|
100.0
%
|
|
Journal : J Agric Food Chem
Year : 2011
Volume : 59
Issue : 2
First Page : 635
Last Page : 644
Stomach toxicity against third-instar Spodoptera exigua in compound treated fresh cabbage leaves assessed as insecticidal activity at 50 mg/L measured after 3 days by leaf-dip method
|
Spodoptera exigua
|
100.0
%
|
|
Journal : J Agric Food Chem
Year : 2011
Volume : 59
Issue : 2
First Page : 635
Last Page : 644
Stomach toxicity against third-instar Spodoptera exigua in compound treated fresh cabbage leaves assessed as insecticidal activity at 10 mg/L measured after 3 days by leaf-dip method
|
Spodoptera exigua
|
90.0
%
|
|
Journal : J Agric Food Chem
Year : 2011
Volume : 59
Issue : 2
First Page : 635
Last Page : 644
Stomach toxicity against third-instar Plutella xylostella (diamondback moth) in compound treated fresh cabbage leaves assessed as insecticidal activity at 200 mg/L measured after 3 days by leaf-dip method
|
Plutella xylostella
|
100.0
%
|
|
Journal : J Agric Food Chem
Year : 2011
Volume : 59
Issue : 2
First Page : 635
Last Page : 644
Stomach toxicity against third-instar Plutella xylostella (diamondback moth) in compound treated fresh cabbage leaves assessed as insecticidal activity at 100 mg/L measured after 3 days by leaf-dip method
|
Plutella xylostella
|
100.0
%
|
|
Journal : J Agric Food Chem
Year : 2011
Volume : 59
Issue : 2
First Page : 635
Last Page : 644
Stomach toxicity against third-instar Plutella xylostella (diamondback moth) in compound treated fresh cabbage leaves assessed as insecticidal activity at 50 mg/L measured after 3 days by leaf-dip method
|
Plutella xylostella
|
100.0
%
|
|
Journal : J Agric Food Chem
Year : 2011
Volume : 59
Issue : 2
First Page : 635
Last Page : 644
Stomach toxicity against third-instar Ostrinia nubilalis (European corn borer) in compound treated fresh corn leaves assessed as insecticidal activity at 200 mg/L measured after 4 days by leaf-dip method
|
Ostrinia nubilalis
|
100.0
%
|
|
Journal : J Agric Food Chem
Year : 2011
Volume : 59
Issue : 2
First Page : 635
Last Page : 644
Larvicidal activity against fourth-instar larval stage of Mythimna separata (Oriental armyworm) in compound-pretreated corn leaves assessed as mortality at 2.5 mg/kg at 25 +/-1 degC measured after 4 days
|
Mythimna separata
|
90.0
%
|
|
Journal : J Agric Food Chem
Year : 2008
Volume : 56
Issue : 22
First Page : 10799
Last Page : 10804
Larvicidal activity against fourth-instar larval stage of Mythimna separata (Oriental armyworm) in compound-pretreated corn leaves assessed as mortality at 5 mg/kg at 25 +/-1 degC measured after 4 days
|
Mythimna separata
|
100.0
%
|
|
Journal : J Agric Food Chem
Year : 2008
Volume : 56
Issue : 22
First Page : 10799
Last Page : 10804
Toxicity against fourth-instar larvae of Culex pipiens pallens assessed as mortality at 0.5 mg/kg measured after 7 to 10 days
|
Culex pipiens pallens
|
50.0
%
|
|
Journal : J Agric Food Chem
Year : 2009
Volume : 57
Issue : 6
First Page : 2447
Last Page : 2456
Toxicity against fourth-instar larvae of Culex pipiens pallens assessed as mortality at 1 mg/kg measured after 7 to 10 days
|
Culex pipiens pallens
|
100.0
%
|
|
Journal : J Agric Food Chem
Year : 2009
Volume : 57
Issue : 6
First Page : 2447
Last Page : 2456
Stomach toxicity in Ostrinia nubilalis (European corn borer) in compound treated corn leaves assessed as mortality measured after 4 days by leaf-dip method
|
Ostrinia nubilalis
|
147.78
mg/L
|
|
Stomach toxicity in Ostrinia nubilalis (European corn borer) in compound treated corn leaves assessed as mortality measured after 4 days by leaf-dip method
|
Ostrinia nubilalis
|
25.57
ug.mL-1
|
|
Journal : J Agric Food Chem
Year : 2009
Volume : 57
Issue : 6
First Page : 2447
Last Page : 2456
Contact toxicity in Helicoverpa armigera assessed as mortality at 1000 mg/L by topical application measured after 4 days by leaf-dip method
|
Helicoverpa armigera
|
60.0
%
|
|
Journal : J Agric Food Chem
Year : 2009
Volume : 57
Issue : 6
First Page : 2447
Last Page : 2456
Stomach toxicity in Helicoverpa armigera in compound treated corn leaves assessed as mortality at 1000 mg/L measured after 4 days by leaf-dip method
|
Helicoverpa armigera
|
60.0
%
|
|
Journal : J Agric Food Chem
Year : 2009
Volume : 57
Issue : 6
First Page : 2447
Last Page : 2456
Contact toxicity in fourth-instar Plutella xylostella (diamondback moth) larva assessed as mortality measured after 72 hr by insect-dip method
|
Plutella xylostella
|
304.4
ug.mL-1
|
|
Journal : J Agric Food Chem
Year : 2009
Volume : 57
Issue : 6
First Page : 2447
Last Page : 2456
Contact toxicity in fourth-instar Plutella xylostella (diamondback moth) larva assessed as mortality measured after 48 hr by insect-dip method
|
Plutella xylostella
|
372.2
ug.mL-1
|
|
Journal : J Agric Food Chem
Year : 2009
Volume : 57
Issue : 6
First Page : 2447
Last Page : 2456
Contact toxicity in fourth-instar Spodoptera exigua assessed as mortality by topical application measured after 48 hr
|
Spodoptera exigua
|
59.6
mg/L
|
|
Journal : J Agric Food Chem
Year : 2009
Volume : 57
Issue : 6
First Page : 2447
Last Page : 2456
Contact toxicity in fourth-instar Spodoptera exigua assessed as mortality by topical application measured after 72 hr
|
Spodoptera exigua
|
12.6
mg/L
|
|
Journal : J Agric Food Chem
Year : 2009
Volume : 57
Issue : 6
First Page : 2447
Last Page : 2456
Stomach toxicity in Spodoptera exigua in compound treated cabbage leaves assessed as mortality measured after 3 days by leaf-dip method
|
Spodoptera exigua
|
5.0
ug.mL-1
|
|
Journal : J Agric Food Chem
Year : 2009
Volume : 57
Issue : 6
First Page : 2447
Last Page : 2456
Toxicity against fourth-instar larvae of Culex pipiens pallens assessed as mortality at 2 mg/kg measured after 7 to 10 days
|
Culex pipiens pallens
|
100.0
%
|
|
Journal : J Agric Food Chem
Year : 2009
Volume : 57
Issue : 6
First Page : 2447
Last Page : 2456
Stomach toxicity in fourth-instar Mythimna separata (Oriental armyworm) larvae in compound treated corn leaves assessed as mortality at 2.5 mg/kg measured after 4 days
|
Mythimna separata
|
95.0
%
|
|
Journal : J Agric Food Chem
Year : 2009
Volume : 57
Issue : 6
First Page : 2447
Last Page : 2456
Stomach toxicity in fourth-instar Mythimna separata (Oriental armyworm) larvae in compound treated corn leaves assessed as mortality at 5 mg/kg measured after 4 days
|
Mythimna separata
|
100.0
%
|
|
Journal : J Agric Food Chem
Year : 2009
Volume : 57
Issue : 6
First Page : 2447
Last Page : 2456
Stomach toxicity in fourth-instar Mythimna separata (Oriental armyworm) larvae in compound treated corn leaves assessed as mortality at 10 mg/kg measured after 4 days
|
Mythimna separata
|
100.0
%
|
|
Journal : J Agric Food Chem
Year : 2009
Volume : 57
Issue : 6
First Page : 2447
Last Page : 2456
Stomach toxicity in fourth-instar Mythimna separata (Oriental armyworm) larvae in compound treated corn leaves assessed as mortality at 25 mg/kg measured after 4 days
|
Mythimna separata
|
100.0
%
|
|
Journal : J Agric Food Chem
Year : 2009
Volume : 57
Issue : 6
First Page : 2447
Last Page : 2456
Stomach toxicity in fourth-instar Mythimna separata (Oriental armyworm) larvae in compound treated corn leaves assessed as mortality at 50 mg/kg measured after 4 days
|
Mythimna separata
|
100.0
%
|
|
Journal : J Agric Food Chem
Year : 2009
Volume : 57
Issue : 6
First Page : 2447
Last Page : 2456
Stomach toxicity in fourth-instar Mythimna separata (Oriental armyworm) larvae in compound treated corn leaves assessed as mortality at 100 mg/kg measured after 4 days
|
Mythimna separata
|
100.0
%
|
|
Journal : J Agric Food Chem
Year : 2009
Volume : 57
Issue : 6
First Page : 2447
Last Page : 2456
Stomach toxicity in fourth-instar Mythimna separata(Oriental armyworm) larvae in compound treated corn leaves assessed as mortality at 200 mg/kg measured after 4 days
|
Mythimna separata
|
100.0
%
|
|
Journal : J Agric Food Chem
Year : 2009
Volume : 57
Issue : 6
First Page : 2447
Last Page : 2456
Chronic toxicity against female adult Anagrus nilaparvatae in petridish under laboratory conditions assessed as reduction in fecundity compound treated as emulsible concentrate with acetone and Triton X-101 relative to untreated control
|
Anagrus
|
47.0
%
|
|
Journal : Crop Protection
Title : Assessment of the impact of insecticides on Anagrus nilaparvatae (Pang et Wang) (Hymenoptera: Mymanidae), an egg parasitoid of the rice planthopper, Nilaparvata lugens (Hemiptera: Delphacidae)
Year : 2008
Volume : 27
Issue : 3
First Page : 514
Last Page : 522
Authors : Wang HuaiYin, Yang Yang, Su JianYa, Shen JinLiang, Gao CongFen, Zhu YuCheng.
Abstract : The parasitoid, Anagrus nilaparvatae (Pang et Wang), is a major natural enemy of the rice planthopper Nilaparvata lugens. It plays an important role in the integrated pest management (IPM) of the rice planthopper, although chemical control is also effective. However, compatibility of biological and chemical control has never been investigated with this system. This study was designed to assess potential insecticide toxicities to the wasps, including acute and residual toxicity through contact and oral ingestion. Fourteen insecticides, including organophosphates, carbamates, pyrethroids, insect growth regulators (IGRs), neonicotine, phenylpyrazole, and antibiotics were selected to test their toxicities against the adult parasitoid. Median lethal concentration (LC₅₀) of each insecticide was first determined. Acute contact toxicity tests indicated that chlorpyrifos had the highest toxicity to the wasp, requiring the least chemical to achieve 50% mortality. Imidacloprid was the second most toxic insecticide, while IGRs had the lowest toxicity. Results of oral toxicity tests of 14 pesticides showed that dichlorvos was the most toxic, which generated 100% mortality only 2h after treatment. Isoprocarb, imidacloprid, and thiamethoxam were the second most toxic insecticides and killed all wasps in a 4-h period. Residual toxicity results indicated that imidacloprid was the most persistent insecticide, and it retained residual toxicity (80.7% mortality) on rice leaves up to 7d after treatment. Thiamethoxam, triazophos, and fipronil also had long residual toxicity to the wasps with 7-d mortalities as 66.8%, 54.6%, and 50.0%, respectively. IGRs showed very low contact and residual toxicity, but exhibited certain chronic effects of oral toxicity on longevity, fecundity, and offspring emergence.
Chronic toxicity against female adult Anagrus nilaparvatae in petridish under laboratory conditions assessed as reduction in longetivity compound treated as emulsible concentrate with acetone and Triton X-100 relative to untreated control
|
Anagrus
|
29.0
%
|
|
Journal : Crop Protection
Title : Assessment of the impact of insecticides on Anagrus nilaparvatae (Pang et Wang) (Hymenoptera: Mymanidae), an egg parasitoid of the rice planthopper, Nilaparvata lugens (Hemiptera: Delphacidae)
Year : 2008
Volume : 27
Issue : 3
First Page : 514
Last Page : 522
Authors : Wang HuaiYin, Yang Yang, Su JianYa, Shen JinLiang, Gao CongFen, Zhu YuCheng.
Abstract : The parasitoid, Anagrus nilaparvatae (Pang et Wang), is a major natural enemy of the rice planthopper Nilaparvata lugens. It plays an important role in the integrated pest management (IPM) of the rice planthopper, although chemical control is also effective. However, compatibility of biological and chemical control has never been investigated with this system. This study was designed to assess potential insecticide toxicities to the wasps, including acute and residual toxicity through contact and oral ingestion. Fourteen insecticides, including organophosphates, carbamates, pyrethroids, insect growth regulators (IGRs), neonicotine, phenylpyrazole, and antibiotics were selected to test their toxicities against the adult parasitoid. Median lethal concentration (LC₅₀) of each insecticide was first determined. Acute contact toxicity tests indicated that chlorpyrifos had the highest toxicity to the wasp, requiring the least chemical to achieve 50% mortality. Imidacloprid was the second most toxic insecticide, while IGRs had the lowest toxicity. Results of oral toxicity tests of 14 pesticides showed that dichlorvos was the most toxic, which generated 100% mortality only 2h after treatment. Isoprocarb, imidacloprid, and thiamethoxam were the second most toxic insecticides and killed all wasps in a 4-h period. Residual toxicity results indicated that imidacloprid was the most persistent insecticide, and it retained residual toxicity (80.7% mortality) on rice leaves up to 7d after treatment. Thiamethoxam, triazophos, and fipronil also had long residual toxicity to the wasps with 7-d mortalities as 66.8%, 54.6%, and 50.0%, respectively. IGRs showed very low contact and residual toxicity, but exhibited certain chronic effects of oral toxicity on longevity, fecundity, and offspring emergence.
Acute contact toxicity against adult Anagrus nilaparvatae assessed as dead parasitoid wasps compound treated for 1 hr measured after 8 hr wash-out period
|
Anagrus
|
1000.0
mgAi/L
|
|
Journal : Crop Protection
Title : Assessment of the impact of insecticides on Anagrus nilaparvatae (Pang et Wang) (Hymenoptera: Mymanidae), an egg parasitoid of the rice planthopper, Nilaparvata lugens (Hemiptera: Delphacidae)
Year : 2008
Volume : 27
Issue : 3
First Page : 514
Last Page : 522
Authors : Wang HuaiYin, Yang Yang, Su JianYa, Shen JinLiang, Gao CongFen, Zhu YuCheng.
Abstract : The parasitoid, Anagrus nilaparvatae (Pang et Wang), is a major natural enemy of the rice planthopper Nilaparvata lugens. It plays an important role in the integrated pest management (IPM) of the rice planthopper, although chemical control is also effective. However, compatibility of biological and chemical control has never been investigated with this system. This study was designed to assess potential insecticide toxicities to the wasps, including acute and residual toxicity through contact and oral ingestion. Fourteen insecticides, including organophosphates, carbamates, pyrethroids, insect growth regulators (IGRs), neonicotine, phenylpyrazole, and antibiotics were selected to test their toxicities against the adult parasitoid. Median lethal concentration (LC₅₀) of each insecticide was first determined. Acute contact toxicity tests indicated that chlorpyrifos had the highest toxicity to the wasp, requiring the least chemical to achieve 50% mortality. Imidacloprid was the second most toxic insecticide, while IGRs had the lowest toxicity. Results of oral toxicity tests of 14 pesticides showed that dichlorvos was the most toxic, which generated 100% mortality only 2h after treatment. Isoprocarb, imidacloprid, and thiamethoxam were the second most toxic insecticides and killed all wasps in a 4-h period. Residual toxicity results indicated that imidacloprid was the most persistent insecticide, and it retained residual toxicity (80.7% mortality) on rice leaves up to 7d after treatment. Thiamethoxam, triazophos, and fipronil also had long residual toxicity to the wasps with 7-d mortalities as 66.8%, 54.6%, and 50.0%, respectively. IGRs showed very low contact and residual toxicity, but exhibited certain chronic effects of oral toxicity on longevity, fecundity, and offspring emergence.
Acute oral toxicity against female adult Anagrus nilaparvatae in petridish under laboratory conditions assessed as mortality compound treated as emulsible concentrate with acetone and Triton X-100 measured after 1 to 8 hr
|
Anagrus
|
1.1
%
|
|
Journal : Crop Protection
Title : Assessment of the impact of insecticides on Anagrus nilaparvatae (Pang et Wang) (Hymenoptera: Mymanidae), an egg parasitoid of the rice planthopper, Nilaparvata lugens (Hemiptera: Delphacidae)
Year : 2008
Volume : 27
Issue : 3
First Page : 514
Last Page : 522
Authors : Wang HuaiYin, Yang Yang, Su JianYa, Shen JinLiang, Gao CongFen, Zhu YuCheng.
Abstract : The parasitoid, Anagrus nilaparvatae (Pang et Wang), is a major natural enemy of the rice planthopper Nilaparvata lugens. It plays an important role in the integrated pest management (IPM) of the rice planthopper, although chemical control is also effective. However, compatibility of biological and chemical control has never been investigated with this system. This study was designed to assess potential insecticide toxicities to the wasps, including acute and residual toxicity through contact and oral ingestion. Fourteen insecticides, including organophosphates, carbamates, pyrethroids, insect growth regulators (IGRs), neonicotine, phenylpyrazole, and antibiotics were selected to test their toxicities against the adult parasitoid. Median lethal concentration (LC₅₀) of each insecticide was first determined. Acute contact toxicity tests indicated that chlorpyrifos had the highest toxicity to the wasp, requiring the least chemical to achieve 50% mortality. Imidacloprid was the second most toxic insecticide, while IGRs had the lowest toxicity. Results of oral toxicity tests of 14 pesticides showed that dichlorvos was the most toxic, which generated 100% mortality only 2h after treatment. Isoprocarb, imidacloprid, and thiamethoxam were the second most toxic insecticides and killed all wasps in a 4-h period. Residual toxicity results indicated that imidacloprid was the most persistent insecticide, and it retained residual toxicity (80.7% mortality) on rice leaves up to 7d after treatment. Thiamethoxam, triazophos, and fipronil also had long residual toxicity to the wasps with 7-d mortalities as 66.8%, 54.6%, and 50.0%, respectively. IGRs showed very low contact and residual toxicity, but exhibited certain chronic effects of oral toxicity on longevity, fecundity, and offspring emergence.
Stomach toxicity against Mythimna separata (Oriental armyworm) fourth-instar larvae reared on compound pre-treated corn leaves assessed as insect mortality at 2.5 mg/kg measured 4 days post compound treatment
|
Mythimna separata
|
90.0
%
|
|
Journal : J Agric Food Chem
Year : 2008
Volume : 56
Issue : 13
First Page : 5254
Last Page : 5259
Stomach toxicity against Mythimna separata (Oriental armyworm) fourth-instar larvae reared on compound pre-treated corn leaves assessed as insect mortality at 5 mg/kg measured 4 days post compound treatment
|
Mythimna separata
|
100.0
%
|
|
Journal : J Agric Food Chem
Year : 2008
Volume : 56
Issue : 13
First Page : 5254
Last Page : 5259
Stomach toxicity against fourth-instar larval stage of Mythimna separata (Oriental armyworm) in compound-pretreated corn leaves assessed as mortality at 2.5 mg/kg at 25+/-1 degC measured after 4 days
|
Mythimna separata
|
90.0
%
|
|
Journal : J Agric Food Chem
Year : 2007
Volume : 55
Issue : 23
First Page : 9614
Last Page : 9619
Stomach toxicity against fourth-instar larval stage of Mythimna separata (Oriental armyworm) in compound-pretreated corn leaves assessed as mortality at 5 mg/kg at 25+/-1 degC measured after 4 days
|
Mythimna separata
|
100.0
%
|
|
Journal : J Agric Food Chem
Year : 2007
Volume : 55
Issue : 23
First Page : 9614
Last Page : 9619
Resistance ratio, ratio of LC50 for third-instar larvae of fufenozide-resistant Plutella xylostella (diamondback moth) to LC50 for third-instar larvae of fufenozide-susceptible Plutella xylostella
|
Plutella xylostella
|
302.8
|
|
Journal : Pest Manag Sci
Title : Cross-resistance patterns and fitness in fufenozide-resistant diamondback moth, Plutella xylostella (Lepidoptera: Plutellidae).
Year : 2012
Volume : 68
Issue : 2
First Page : 285
Last Page : 289
Authors : Sun J, Liang P, Gao X.
Abstract : BACKGROUND: Fufenozide is a novel non-steroidal ecdysone agonist with good efficacy against diamondback moth (DBM), Plutella xylostella (Lepidoptera: Plutellidae). At present, it is widely applied for the control of a range of lepidopterous pests in China. This study compared the activities of fufenozide and 12 other insecticides against unselected and fufenozide-selected strains of DBM to examine potential patterns of cross-resistance. The relative fitness of the fufenozide-selected strain was assessed to provide information pertinent to insecticide resistance management. RESULTS: Compared with the susceptible strain (JSS), the fufenozide-resistant strain (JSR) showed high cross-resistance to dibenzoylhydrazines and benzoylphenylureas, low cross-resistance to abamectin and no cross-resistance to organophosphates, carbamates and pyrethroids. JSR had a lower reproductive ability and a relative fitness of 0.5 compared with JSS. CONCLUSION: P. xylostella has the potential to develop resistance to fufenozide, albeit at the expense of fitness. Cross-resistance between the same and other classes of insecticides is of concern, and should be a key consideration when implementing fufenozide-based control strategies for this species.
Insecticidal activity against third-instar larvae of fufenozide-susceptible Plutella xylostella (diamondback moth) assessed as mortality by leaf-dip bioassay method
|
Plutella xylostella
|
2.23
ug.mL-1
|
|
Journal : Pest Manag Sci
Title : Cross-resistance patterns and fitness in fufenozide-resistant diamondback moth, Plutella xylostella (Lepidoptera: Plutellidae).
Year : 2012
Volume : 68
Issue : 2
First Page : 285
Last Page : 289
Authors : Sun J, Liang P, Gao X.
Abstract : BACKGROUND: Fufenozide is a novel non-steroidal ecdysone agonist with good efficacy against diamondback moth (DBM), Plutella xylostella (Lepidoptera: Plutellidae). At present, it is widely applied for the control of a range of lepidopterous pests in China. This study compared the activities of fufenozide and 12 other insecticides against unselected and fufenozide-selected strains of DBM to examine potential patterns of cross-resistance. The relative fitness of the fufenozide-selected strain was assessed to provide information pertinent to insecticide resistance management. RESULTS: Compared with the susceptible strain (JSS), the fufenozide-resistant strain (JSR) showed high cross-resistance to dibenzoylhydrazines and benzoylphenylureas, low cross-resistance to abamectin and no cross-resistance to organophosphates, carbamates and pyrethroids. JSR had a lower reproductive ability and a relative fitness of 0.5 compared with JSS. CONCLUSION: P. xylostella has the potential to develop resistance to fufenozide, albeit at the expense of fitness. Cross-resistance between the same and other classes of insecticides is of concern, and should be a key consideration when implementing fufenozide-based control strategies for this species.
Insecticidal activity against third-instar larvae of fufenozide-resistant Plutella xylostella (diamondback moth) assessed as mortality by leaf-dip bioassay method
|
Plutella xylostella
|
675.6
ug.mL-1
|
|
Journal : Pest Manag Sci
Title : Cross-resistance patterns and fitness in fufenozide-resistant diamondback moth, Plutella xylostella (Lepidoptera: Plutellidae).
Year : 2012
Volume : 68
Issue : 2
First Page : 285
Last Page : 289
Authors : Sun J, Liang P, Gao X.
Abstract : BACKGROUND: Fufenozide is a novel non-steroidal ecdysone agonist with good efficacy against diamondback moth (DBM), Plutella xylostella (Lepidoptera: Plutellidae). At present, it is widely applied for the control of a range of lepidopterous pests in China. This study compared the activities of fufenozide and 12 other insecticides against unselected and fufenozide-selected strains of DBM to examine potential patterns of cross-resistance. The relative fitness of the fufenozide-selected strain was assessed to provide information pertinent to insecticide resistance management. RESULTS: Compared with the susceptible strain (JSS), the fufenozide-resistant strain (JSR) showed high cross-resistance to dibenzoylhydrazines and benzoylphenylureas, low cross-resistance to abamectin and no cross-resistance to organophosphates, carbamates and pyrethroids. JSR had a lower reproductive ability and a relative fitness of 0.5 compared with JSS. CONCLUSION: P. xylostella has the potential to develop resistance to fufenozide, albeit at the expense of fitness. Cross-resistance between the same and other classes of insecticides is of concern, and should be a key consideration when implementing fufenozide-based control strategies for this species.
Insecticidal activity against fufenozide-resistant 39th generation of third-instar larvae of Plutella xylostella (diamondback moth) in cabbage leaf assessed as mortality after 96 hr by leaf dip method
|
Plutella xylostella
|
1479108.39
nM
|
|
Journal : Pest Manag Sci
Year : 2010
Volume : 66
Issue : 4
First Page : 406
Last Page : 411
Resistant ratio, ratio of LC50 for backcrossed third-instar larvae of Plutella xylostella (diamondback moth) to LC50 for fufenozide-susceptible third-instar larvae of Plutella xylostella
|
Plutella xylostella
|
2.33
|
|
Journal : Pest Manag Sci
Year : 2010
Volume : 66
Issue : 4
First Page : 406
Last Page : 411
Resistant ratio, ratio of LC50 for F2 generation of third-instar larvae of Plutella xylostella (diamondback moth) to LC50 for fufenozide-susceptible third-instar larvae of Plutella xylostella
|
Plutella xylostella
|
2.24
|
|
Journal : Pest Manag Sci
Year : 2010
Volume : 66
Issue : 4
First Page : 406
Last Page : 411
Resistant ratio, ratio of LC50 for F1 pooled generation of third-instar larvae of Plutella xylostella (diamondback moth) to LC50 for fufenozide-susceptible third-instar larvae of Plutella xylostella
|
Plutella xylostella
|
2.61
|
|
Journal : Pest Manag Sci
Year : 2010
Volume : 66
Issue : 4
First Page : 406
Last Page : 411
Resistant ratio, ratio of LC50 for F'1 generation of third-instar larvae of Plutella xylostella (diamondback moth) to LC50 for fufenozide-susceptible third-instar larvae of Plutella xylostella
|
Plutella xylostella
|
2.09
|
|
Journal : Pest Manag Sci
Year : 2010
Volume : 66
Issue : 4
First Page : 406
Last Page : 411
Resistant ratio, ratio of LC50 for F1 generation of third-instar larvae of Plutella xylostella (diamondback moth) to LC50 for fufenozide-susceptible third-instar larvae of Plutella xylostella
|
Plutella xylostella
|
1.76
|
|
Journal : Pest Manag Sci
Year : 2010
Volume : 66
Issue : 4
First Page : 406
Last Page : 411
Resistant ratio, ratio of LC50 for fufenozide-resistant third-instar larvae of Plutella xylostella (diamondback moth) to LC50 for fufenozide-susceptible third-instar larvae of Plutella xylostella
|
Plutella xylostella
|
302.82
|
|
Journal : Pest Manag Sci
Year : 2010
Volume : 66
Issue : 4
First Page : 406
Last Page : 411
Insecticidal activity against backcrossed third-instar larvae of Plutella xylostella (diamondback moth) in cabbage leaf assessed as mortality after 96 hr by leaf dip method
|
Plutella xylostella
|
6.93
ug.mL-1
|
|
Journal : Pest Manag Sci
Year : 2010
Volume : 66
Issue : 4
First Page : 406
Last Page : 411
Insecticidal activity against F2 generation of third-instar larvae of Plutella xylostella (diamondback moth) in cabbage leaf assessed as mortality after 96 hr by leaf dip method
|
Plutella xylostella
|
5.0
ug.mL-1
|
|
Journal : Pest Manag Sci
Year : 2010
Volume : 66
Issue : 4
First Page : 406
Last Page : 411
Insecticidal activity against F1 pooled generation of third-instar larvae of Plutella xylostella (diamondback moth) in cabbage leaf assessed as mortality after 96 hr by leaf dip method
|
Plutella xylostella
|
5.82
ug.mL-1
|
|
Journal : Pest Manag Sci
Year : 2010
Volume : 66
Issue : 4
First Page : 406
Last Page : 411
Insecticidal activity against F'1 generation of third-instar larvae of Plutella xylostella (diamondback moth) in cabbage leaf assessed as mortality after 96 hr by leaf dip method
|
Plutella xylostella
|
6.22
ug.mL-1
|
|
Journal : Pest Manag Sci
Year : 2010
Volume : 66
Issue : 4
First Page : 406
Last Page : 411
Insecticidal activity against F1 generation of third-instar larvae of Plutella xylostella (diamondback moth) in cabbage leaf assessed as mortality after 96 hr by leaf dip method
|
Plutella xylostella
|
5.23
ug.mL-1
|
|
Journal : Pest Manag Sci
Year : 2010
Volume : 66
Issue : 4
First Page : 406
Last Page : 411
Insecticidal activity against fufenozide-resistant third-instar larvae of Plutella xylostella (diamondback moth) in cabbage leaf assessed as mortality after 96 hr by leaf dip method
|
Plutella xylostella
|
446683592.15
nM
|
|
Insecticidal activity against fufenozide-resistant third-instar larvae of Plutella xylostella (diamondback moth) in cabbage leaf assessed as mortality after 96 hr by leaf dip method
|
Plutella xylostella
|
675.6
ug.mL-1
|
|
Journal : Pest Manag Sci
Year : 2010
Volume : 66
Issue : 4
First Page : 406
Last Page : 411
Insecticidal activity against fufenozide-susceptible third-instar larvae of Plutella xylostella (diamondback moth) in cabbage leaf assessed as mortality after 96 hr by leaf dip method
|
Plutella xylostella
|
2.23
ug.mL-1
|
|
Journal : Pest Manag Sci
Year : 2010
Volume : 66
Issue : 4
First Page : 406
Last Page : 411