Baseline of susceptibility, risk assessment, biochemical mechanism, and fitness cost of resistance to dimpropyridaz, a novel pyridazine pyrazolecarboxamide insecticide, in Bemisia tabaci from China
文献类型： 外文期刊
作者： Tang, Juan 1 ; Qu, Cheng 1 ; Zhan, Qianyuan 1 ; Zhang, Daofeng 1 ; Wang, Jinda 3 ; Luo, Chen 1 ; Wang, Ran 1 ;
作者机构： 1.Beijing Acad Agr & Forestry Sci, Inst Plant Protect, Beijing 100097, Peoples R China
2.Minist Agr & Rural Affairs, Coconstruct Minist & Prov, Key Lab Environm Friendly Management Fruit & Veget, Beijing 100097, Peoples R China
3.Fujian Agr & Forestry Univ, Natl Engn Res Ctr Sugarcane, Fuzhou 350002, Peoples R China
关键词： Bemisia tabaci; Dimpropyridaz; Baseline of susceptibility; Risk assessment; Fitness cost; Detoxifying enzymes
期刊名称：PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY （ 影响因子：4.2； 五年影响因子：4.6 ）
ISSN： 0048-3575
年卷期： 2024 年 203 卷
页码：
收录情况： SCI
摘要： Bemisia tabaci is one of the most destructive agricultural insect pests around the world, and it has developed high levels of resistance to most pesticides. Dimpropyridaz, a novel insecticide developed by BASF, displays excellent activity against piercing-sucking insect pests. In this study, baseline of susceptibility showed all tested field populations of B. tabaci are susceptible to dimpropyridaz. After continuous selection with dimpropyridaz in the lab, a B. tabaci strain (F12) developed 2.2-fold higher level of resistance compared with a susceptible MED-S strain, and the realized heritability (h2) was estimated as 0.0518. The F12 strain displayed little crossresistance to afidopyropen, cyantraniliprole, sulfoxaflor, or abamectin, and significantly increased activity of cytochrome P450 monooxygenase (P450). The fitness cost of dimpropyridaz resistance was evident in F12 strain, which had a relative fitness of 0.95 and significantly lower fecundity per female compared with MED-S strain. Taken together, B. tabaci displays high susceptibility to dimpropyridaz in the field, and low risk of developing resistance to dimpropyridaz under successive selection pressure. Little cross-resistance to popular insecticides was found, and fitness cost associated dimpropyridaz resistance was observed. Higher activity of cytochrome P450 in the F12 strain, may be involved in the process of detoxifying dimpropyridaz in whitefly.
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