Evidence of active oviposition avoidance to systemically applied imidacloprid in the Colorado potato beetle  

作　　者：Alitha Edison Anja Michelbach Dominique Sowade Hanna Kertzel Luise Schmidt Martin Schafer Maximilian Hackhausen Raif Nauen Pablo Duchen Shuqing Xu 

机构地区：[1]Institute for Evolution and Biodiversity,University of Munster,HufferstraBe 1,Munster,48149,Germany [2]Institute of Organismic and Molecular Evolution(iomE),University of Mainz,Hanns-Dieter-Husch-Weg 15,Mainz,55128,Germany [3]Current address:Department of Cell and Tissue Dynamics,Munster,Germany [4]Crop Science Division,Research and Development Department,Bayer AG,Monheim,Germany

出　　处：《Insect Science》2024年第5期1543-1554,共12页昆虫科学（英文版）

基　　金：We are grateful to the German Research Foundation(DFG)for funding this research as part of the CRC TRR 212(NC3)-Project number 316099922。

摘　　要：Agricultural pests can develop behavioral resistance to insecticides by choosing to feed or oviposit on insecticide-free hosts.As young larvae have relatively low mobility,oviposition preferences from female adults may play a critical role in shaping the evolu-tionary trajectory of pest populations.While oviposition avoidance of insecticide-treated hosts was found in different agriculture pests,it remains unclear whether female adults actively choose to occupy insecticide-free hosts.To address this question,we investigated feeding and oviposition preferences between imidacloprid-treated and imidacloprid-free plants in the Colorado potato beetle,Leptinotarsa decemlineata Say,a major potato pest.We performed behavioral choice assays on two strains that differed in both fecundity and insecticide resistance.We found that one strain preferred to feed on the insecticide-free plants and that this preference is not innate.Meanwhile,the other strain chose plants for feeding and oviposition randomly.Further analyses of the moving patterns of the beetles suggested that the oviposition preference in the first strain is likely due to active learning.

关 键 词：Colorado potato beetle host preferences IMIDACLOPRID insecticide resis-tance OVIPOSITION pesticide avoidance 

分 类 号：Q96[生物学—昆虫学]