中国生物防治学报2023，Vol.39Issue(6)：1289-1294,6.DOI:10.16409/j.cnki.2095-039x.2023.01.016
多异瓢虫对核桃黑斑蚜的捕食作用
Predation of Ladybeetle Hippodamia variegata on Walnut Aphid Chromaphis juglandicola
摘要
Abstract
The walnut aphid Chromaphis juglandicola(Kaltenbach)and the ladybeetle Hippodamia variegata(Goeze)are the main pest and dominant natural enemy in walnut orchards,respectively,in southern Xinjiang.In this study,the predatory function responses of the ladybeetle larvae(i.e.,1st,2nd,3rd,and 4th instars),female and male adults to the walnut aphid were investigated under laboratory conditions to assess the control potential of ladybeetle on walnut aphid.The results showed that the daily predation of ladybeetle larvae increased with the increasing larval instar.There were no significant differences between the daily predation amount of the ladybeetle female and male adults and the 4th instar larvae under the condition of sufficient prey.When the prey density was low,however,the predatory ability of male adults was weaker.The predatory function responses of the 1st to 4th instar larvae,female and male adults of the ladybeetle to walnut aphid fitted well with the Holling Ⅱ model.The daily maximum predation of the 4th instar larvae,female and male adults of the ladybeetle were much higher,362.55,297.19 and 377.24,respectively.This study suggests that ladybeetle is a promising biocontrol agent for walnut aphid and provides a scientific basis for the innovation of biological control technology of walnut aphid in southern Xinjiang.关键词
核桃/蚜虫/瓢虫/捕食功能/生物防治Key words
walnut/aphid/ladybeetle/predatory function/biological control分类
农业科技引用本文复制引用
王巧,杨龙,潘云飞,李海强,陆宴辉..多异瓢虫对核桃黑斑蚜的捕食作用[J].中国生物防治学报,2023,39(6):1289-1294,6.基金项目
中国农业科学院科技创新工程 （）
