摘要
采用人工饲料带毒法将多杀菌素与棉酚单独或联合作用于棉铃虫,观察对棉铃虫的毒力和生物学特性的影响。结果表明:多杀菌素对棉铃虫具有致死作用和亚致死效应;试验剂量下的棉酚对棉铃虫的生物学特性没有任何显著影响;棉铃虫取食含有多杀菌素和棉酚的饲料后,其生物学特性与仅取食多杀菌素试虫没有显著差异,说明棉酚对多杀菌素的亚致死效应没有产生明显的影响。
The effects of spinosad and gossypol on toxicity and biological characteristics of Helicover paarmigera were determined by oral exposure of late second-instar larvae to artificial diet with spinosad and/or gossypol.The results showed that the combination of lethal and sublethal effects of spinosad might affect pest population dynamics significantly by decreasing its survival and reproduction,and by delaying its development.Gossypol did not change obviously biological characteristics of Helicoverpa armigera.In the tested concentrations,evident influence of gossypol on sublethal effects of spinosad was not found.
出处
《农药研究与应用》
2011年第4期12-14,共3页
Agrochemicals Research & Application
关键词
多杀菌素
棉酚
棉铃虫
毒力
亚致死效应
测定
spinosad
gossypol
Helicoverpa armigera
toxicity
sublethal effects
determination
