5种杀虫剂对西花蓟马的室内毒力及其对巴氏新小绥螨的安全性评价  

Indoor Toxicity of Five Insecticides against Frankliniella occidentalis and Safety Evaluation for Neoseiulus barkeri

作　　者：陈平 刘正玲[2] 杨亚辉 李凡[1] 詹莜国[2] 史爱民 谢永辉[2] 兰平秀 CHEN Ping;LIU Zhengling;YANG Yahui;LI Fan;ZHAN Youguo;SHI Aimin;XIE Yonghui;LAN Pingxiu(College of Plant Protection,Yunnan Agricultural University,Kunming 650201,China;Kunming Branch of Yunnan Provincial Tobacco Company,Kunming 650021,China;Yunnan Tuidongzhe Biotechnology Co.,Ltd.,Kunming 650201,China)

机构地区：[1]云南农业大学植物保护学院,云南昆明650201 [2]云南省烟草公司昆明市公司,云南昆明650021 [3]云南推动者生物科技有限公司,云南昆明650201

出　　处：《云南农业大学学报（自然科学版）》2024年第4期23-28,共6页Journal of Yunnan Agricultural University:Natural Science

基　　金：中国烟草总公司重大科技项目(110202101053-LS-13);云南省烟草公司科技计划项目(2021530000242001)。

摘　　要：【目的】筛选对西花蓟马(Frankliniella occidentalis)防控效果显著且对巴氏新小绥螨(Neoseiulus barkeri)安全的杀虫剂,为联合使用杀虫剂和捕食螨防控西花蓟马提供参考。【方法】分别使用60 g/L乙基多杀菌素悬浮剂、苦参碱、25%噻虫嗪水分散粒剂、5%阿维菌素和70%吡虫啉共5种常用杀虫剂浸渍过的菜豆豆荚饲喂西花蓟马,48 h后测定其对西花蓟马成虫的防控效果;将巴氏新小绥螨放入喷洒过药剂的捕食螨饲养麦麸中,48 h后测定其对巴氏新小绥螨的安全性。【结果】这5种杀虫剂对西花蓟马的虫口减退率分别为97.78%、95.00%、92.22%、88.89%和59.56%,防控效果依次为97.52%、94.43%、91.34%、87.43%和55.42%,乙基多杀菌素、苦参碱和噻虫嗪对西花蓟马的防控效果较好。与清水对照组相比,苦参碱、噻虫嗪、乙基多杀菌素、吡虫啉和阿维菌素对巴氏新小绥螨的虫口减退率分别为11.37%、9.71%、9.15%、8.04%和4.70%,其中,阿维菌素对巴氏新小绥螨虫口数量的影响最小,安全性最高。【结论】单独使用时,乙基多杀菌素、苦参碱和噻虫嗪可作为生产中防控西花蓟马的推荐药剂;与天敌组合使用时,阿维菌素与巴氏新小绥螨联合使用能够充分发挥杀虫剂的药效和捕食螨的捕食作用,乙基多杀菌素和噻虫嗪则应在捕食螨充分定殖后使用。[Purpose]To screen insecticides that are effective against Frankliniella occidentalis and safe for Neoseiulus barkeri,providing a reference for the combined use of insecticides and predatory mites in controlling F.occidentalis.[Methods]The bean pods treated with 60 g/L spinetoram suspension,matrine,25%thiamethoxam water dispersible granules,5%abamectin,and 70%imidacloprid,respectively,were used to feed F.occidentalis.After 48 hours,the control effect on F.occidentalis and the safety to N.barkeri were evaluated.[Results]The insect decline rates of the above five insecticides to F.occidentalis were in turn of 97.78%,95.00%,92.22%,88.89%,and 59.56%;the control effects were in turn of 97.52%,94.43%,91.34%,87.43%,and 55.42%.Spinetoram,matrine,and thiamethoxam showed good control effects against F.occidentalis.Compared to the water control,the insect decline rates of matrine,thiamethoxam,spinetoram,imidacloprid,and abamectin were 11.37%,9.71%,9.15%,8.04%and 4.70%,respectively.Among them,abamectin had the least impact on N.barkeri populations and was the safest.[Conclusion]When used alone,spinetoram,matrine,and thiamethoxam can be recommended as effective insecticides for controlling F.occidentalis.When used in combination with predatory mites,abamectin can be used with N.barkeri to maximize the insecticidal effect and predatory mite efficacy.Spinetoram and thiamethoxam should be applied only after N.barkeri has been well established.

关 键 词：西花蓟马 杀虫剂 巴氏新小绥螨 防治效果 安全性评价 

分 类 号：S433.89[农业科学—农业昆虫与害虫防治]