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

作　　者：王巧 杨龙[1] 潘云飞 李海强[2] 陆宴辉[1] WANG Qiao;YANG Long;PAN Yunfei;LI Haiqiang;LU Yanhui(State Key Laboratory for Biology of Plant Diseases and Insect Pests/Institute of Plant Protection,Chinese Academy of Agricultural Sciences,Beijing 100193,China;Institute of Plant Protection,Xinjiang Academy of Agricultural Sciences,Urumqi 830091,China)

机构地区：[1]中国农业科学院植物保护研究所/植物病虫害综合治理全国重点实验室,北京100193 [2]新疆农业科学院植物保护研究所,乌鲁木齐830091

出　　处：《中国生物防治学报》2023年第6期1289-1294,共6页Chinese Journal of Biological Control

基　　金：中国农业科学院科技创新工程。

摘　　要：核桃黑斑蚜、多异瓢虫分别为新疆南疆核桃园的主要害虫与优势天敌。本研究测定了多异瓢虫不同龄期幼虫及雌、雄成虫对核桃黑斑蚜的室内捕食功能,以期明确南疆核桃园多异瓢虫的控蚜潜能。结果显示,多异瓢虫幼虫对核桃黑斑蚜的日均捕食量随龄期的增加而增大;猎物充足时,雌、雄成虫与4龄幼虫对核桃黑斑蚜的日均捕食量差异不显著,但在猎物密度较低时,三者之中雄成虫的捕食能力偏弱。多异瓢虫1~4龄幼虫及雌、雄成虫对核桃黑斑蚜的捕食功能反应均符合Holling Ⅱ型模型,4龄幼虫和雌、雄成虫对核桃黑斑蚜的日最大捕食量最高,分别为362.55头、297.19头和377.24头。这表明,多异瓢虫对核桃黑斑蚜具有较好的防控潜能,为南疆核桃园核桃黑斑蚜生物防治技术创新提供了科学依据。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.,1^(st),2^(nd),3^(rd),and 4^(th) 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 4^(th) 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 4^(th) 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 

分 类 号：S476.2[农业科学—农业昆虫与害虫防治]