Impact of insecticide resistance management strategies for cotton insect pests in Punjab

2015 ◽  
Vol 52 (3) ◽  
pp. 121
Author(s):  
Vijay Kumar ◽  
A K Dhawan
2010 ◽  
Vol 66 (10) ◽  
pp. 1101-1105 ◽  
Author(s):  
Jian-Zhou Zhao ◽  
Hilda L Collins ◽  
Anthony M Shelton

2019 ◽  
Author(s):  
Galen P. Dively ◽  
Michael S. Crossley ◽  
Sean D. Schoville ◽  
Nathalie Steinhauer ◽  
David J. Hawthorne

AbstractAgricultural insect pests frequently exhibit geographic variation in levels of insecticide resistance, which are often presumed to be due to the intensity of insecticide use for pest management. However, regional differences in the evolution of resistance to novel insecticides suggests that other factors are influencing rates of adaptation. We examined LC50 bioassay data spanning 15 years and six insecticides (abamectin, imidacloprid, spinosad, cyantraniliprole, chlorantraniliprole, and metaflumizone) for evidence of regional differences in Colorado potato beetle (CPB) baseline sensitivity to insecticides as they became commercially available. We consistently found that CPB populations from the Western USA had the highest baseline sensitivity to novel insecticides, while populations from the Eastern USA had the lowest. Comparisons of gene expression between populations from these regions revealed constitutively elevated expression of an array of detoxification genes in the East, but no evidence of additional induction when exposed to imidacloprid. Our results suggest a mechanism for geographic variation in rates of adaptation to insecticides whereby baseline levels of gene expression determine a population’s response to novel insecticides. These findings have implications for the regional development of insecticide resistance management strategies and for the fundamental question of what determines the rate of adaptation to insecticides.


2020 ◽  
Vol 503 ◽  
pp. 110383 ◽  
Author(s):  
Joseph Christopher Helps ◽  
Neil D. Paveley ◽  
Sacha White ◽  
Frank van den Bosch

Insects ◽  
2021 ◽  
Vol 12 (12) ◽  
pp. 1078
Author(s):  
Zhao Li ◽  
Yao Qin ◽  
Ruoheng Jin ◽  
Yunhua Zhang ◽  
Zhijie Ren ◽  
...  

Monitoring is an important component of insecticide resistance management. In this study, resistance monitoring was conducted on 18 field populations in China. The results showed that S. furcifera developed high levels of resistance to chlorpyrifos and buprofezin, and S. furcifera showed low to moderate levels of resistance to imidacloprid, thiamethoxam, dinotefuran, clothianidin, sulfoxaflor, isoprocarb and ethofenprox. Sogatella furcifera remained susceptible or low levels of resistance to nitenpyram. LC50 values of nitenpyram and dinotefuran, imidacloprid, thiamethoxam, clothianidin and chlorpyrifos exhibited significant correlations, as did those between dinotefuran and thiamethoxam, clothianidin, sulfoxaflor, imidacloprid, isoprocarb and buprofezin. Similarly, significant correlations were observed between thiamethoxam and clothianidin, sulfoxaflor and imidacloprid. In addition, the activity of EST in field populations of S. furcifera were significantly correlated with the LC50 values of nitenpyram, thiamethoxam and clothianidin. These results will help inform effective insecticide resistance management strategies to delay the development of insecticide resistance in S. furcifera.


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