Dietary experience alters predatory behavior of two ladybird species on tomato potato psyllid  

作　　者：Shovon Chandra Sarkar Stephen Paul Milroy Wei Xu 

机构地区：[1]Food Futures Institute,Murdoch University,Murdoch,Western Australia,Australia

出　　处：《Insect Science》2024年第5期1579-1590,共12页昆虫科学（英文版）

基　　金：This research was also funded by the Agricultural Produce Commission of Western Australia(APCP2123197POT and APCP2123197VEG).

摘　　要：The tomato potato psyllid,Bactericera cockerelli,is an invasive pest in Aus-tralia,which can cause severe economic loss in the production of Solanaceous crops.As an invasive pest,B.cockerelli may also modify biotic interactions in Australian agricul-tural and native ecosystems.Resident generalist predators in an area may have the ability to utilize invasive pest species as prey but this will depend on their specific predatory behavior.The extent to which generalist predators learn from their previous dietary ex-perience(i.e.,whether they have used a particular species as prey before)and how this impacts subsequent prey choice will influence predator and prey population dynamics af-ter invasion.In this study,one nonnative resident ladybird,Hippodamia variegata,and one native ladybird,Coccinella transversalis,were investigated.Dietary experience with B.cockerelli as a prey species significantly increased preference for the psyllid in a short term(6 h)Petri dish study where a choice of prey was given.Greater suppression of B.cockerelli populations by experienced ladybirds was also observed on glasshouse grown tomato plants.This was presumably due to altered prey recognition by experience.The result of this study suggest the potential to improve the impact of biological control agents on invasive pests by providing early life experience consuming the target species.It may prove valuable for developing improved augmentative release strategies for ladybirds to manage specific insect pest species.

关 键 词：biological control invasive pest PREDATOR predator experience prey prefer-ence 

分 类 号：Q96[生物学—昆虫学]