摘要
为了筛选出对温室白粉虱Trialeurodes vaporariorum具有增效作用的农药复配组合,室内采用玻璃管饲喂法测定了辣椒碱与吡虫啉、溴氰虫酰胺、苦参碱复配对温室白粉虱初羽化成虫的联合毒力,并以共毒因子法与共毒系数法对各复配组合的联合毒力进行评价。试验结果表明,共毒因子大于20的配比共6组,进一步细化配比后筛选出共毒系数大于120的复配组合,其中14组具有增效作用,辣椒碱分别与吡虫啉、溴氰虫酰胺、苦参碱按287∶1、1558∶1、423∶1复配时增效作用最显著,其共毒系数分别为257.89、255.65、248.80,LC_(50)分别为31.83、128.07、98.87 mg/L。辣椒碱与吡虫啉按287∶1复配为最佳复配组合。
In order to screen out the combinations of insecticide with synergism to whitefly Trialeurodes vaporariorum,joint toxicity of capsaicin compounded with imidacloprid,cyantraniliprole and matrine against adults of the whitefly T.vaporariorum were determined by feeding method with glass tube in laboratory,and the co-toxicity effects of each combinations were evaluated by the method of co-toxicity factor and co-toxicity coefficient.The results showed that six groups’co-toxicity factors were greater than 20,and 14 combinations with synergism and co-toxicity coefficient of more than 120 were selected out after refined proportion.When capsaicin compounded with imidacloprid,cyantraniliprole and matrine at the ratio of 287∶1,1558∶1 and 423∶1,the synergistic effect was the most prominent,the co-toxicity coefficients were 257.89,255.65,248.80,and the LC_(50) values were 31.83,128.07,98.87 mg/L,respectively.The best combination was capsaicin and imidacloprid compounded at the ratio of 287∶1.
作者
刘国强
白冰
毕于慧
栾军波
于志国
LIU Guoqiang;BAI Bing;BI Yuhui;LUAN Junbo;YU Zhiguo(College of Plant Protection,Shenyang Agricultural University,Shenyang 110866,China)
出处
《植物保护》
CAS
CSCD
北大核心
2021年第4期305-309,共5页
Plant Protection
基金
“十三五”国家重点研发计划重点专项(2018YFD0800401)。
关键词
温室白粉虱
联合毒力
共毒因子
共毒系数
Trialeurodes vaporariorum
joint toxicity
co-toxicity factor
co-toxicity coefficient
