The Post-exposure Effects of Spinosad and Plant Allelochemicals on Biological Characteristics of Helicoverpa armigera(Lepidoptera： Noctuvidae)  

作　　者：Xuexiang REN Zhenghe YE Xianyan SU Dong WANG Shanmin CHENG Zhongchen FAN 

机构地区：[1]Institude of Plant Protection and Agro-Products Safety, Anhui Academy of Agricultural Science, Hefei 230031, China [2]Jinan Center For Disease Control and Prevention, Jinan 250100, China [3]Anhui Hui Fu Qiang Agricultural Science and Technology Co.,Ltd, Hefei, 230022, China

出　　处：《Agricultural Science & Technology》2016年第2期391-393,共3页农业科学与技术（英文版）

基　　金：Supported by Technology Innovation Team of Pesticide Innovation and High efficiency Application of Pesticide(13C1109);Discipline Construction of Anhui Agricultural Sciences(15A1119);Major Science and Technology of Anhui Province(15czz03132)

摘　　要：In order to define the combined effects of spinosad and plant allelochemicals on Helicoverpa armigera(Lepidoptera:Noctuvidae), the research fed them on artificial diets with different doses of spinosad, gossypol, quercetin and tannicacid, and the changes of pupal and imaginal biological characteristics were observed and recorded. The results showed that spinosad at sublethal concentrations decreased pupation ratio and pupal weight, prolonged prepupal and pupal periods, and decreased emergence ratio, fecundity and longevity of adults. Combined with plant allelochemicals, spinosad significantly prolonged pupal period and shorten adult longevity. Other life-cycle parameters such as pupation ratio, pupal weights, emergence ratio, eggs laid per female and hatch ratio did not change significantly. The results clearly indicated that plant allelochemicals did not change spinosad efficiency on H. armigera, but the combination of spinosad and plant allelochemicals might affect pest population dynamics significantly by changing its development.In order to define the combined effects of spinosad and plant allelochemicals on Helicoverpa armigera（Lepidoptera：Noctuvidae）, the research fed them on artificial diets with different doses of spinosad, gossypol, quercetin and tannicacid, and the changes of pupal and imaginal biological characteristics were observed and recorded. The results showed that spinosad at sublethal concentrations decreased pupation ratio and pupal weight, prolonged prepupal and pupal periods, and decreased emergence ratio, fecundity and longevity of adults. Combined with plant allelochemicals, spinosad significantly prolonged pupal period and shorten adult longevity. Other life-cycle parameters such as pupation ratio, pupal weights, emergence ratio, eggs laid per female and hatch ratio did not change significantly. The results clearly indicated that plant allelochemicals did not change spinosad efficiency on H. armigera, but the combination of spinosad and plant allelochemicals might affect pest population dynamics significantly by changing its development.

关 键 词：exposure Lepidoptera emergence larvae quercetin prolonged clearly shorten toxicity weights 

分 类 号：S433[农业科学—农业昆虫与害虫防治]