河南农业科学2017，Vol.46Issue(7)：77-80,4.DOI:10.15933/j.cnki.1004-3268.2017.07.013
6种药剂对田间小菜蛾的防治效果及其安全性评价
Field Control Effect and Safety Evaluation of Six Kinds of Pesticides against Plutella xylostella
摘要
Abstract
In order to select pesticides of high efficiency,low toxicity and safety to control Plutella xylostella,indoor toxicity test,field trial and safety evaluation were conducted successively on 6 kinds of pesticides.The results of indoor toxicity test showed that the virulence of 20％ Chlorantraniliprole suspension was the strongest after 72 h,of which 50％ lethal concentration(LCs0) was 0.584 2 mg/L.10％ Si Ltü Chong Xian'an suspension (SYP-9080) and 10％ Chlorfenapyr suspension were next,and their LC50 were 0.792 3 mg/L and 1.621 3 mg/L respectively.1％ Emamectin benzoate emulsifiable concentrate(EC) had the weakest virulence,of which the LC50 was 3.508 2 mg/L.The experiment in the field showed that 20％ Chlorantraniliprole suspension was the best in all treatments.Its control effect reached 84.4％ one day after applied,and 96.2％ after seven days.Compared with the other pesticides,20％ Chlorantraniliprole suspension was superior,characterized by quick onset,low residues,long duration and safety.SYP-9080 and 10％ Chlorfenapyr suspension were followed.Their control effects reached 77.8％ and 71.2％ respectively one day after applied,then 87.3％ and 87.9％ respectively after seven days.20％ Emamectin benzoate hydrazide EC and 5％ Fipronil suspension were next,whose control effects reached 65.1％ and 64.3％ respectively one day after applied,and 77.1％ and 75.0％ after seven days.1％ Emamectin benzoate EC was the worst.Its control effect was only 56.3％ one day after applied,and dropped to 42.5％ after seven days.During the test period,all the pesticides were safe to crop.So it is believed that 20％ Chlorantraniliprole suspension,SYP-9080,10％ Chlorfenapyr suspension,20％ Emamectin benzoate hydrazide EC and 5％ Fipronil suspension are all suitable for widely use in pollution-free vegetable production bases.关键词
小菜蛾/药剂/室内毒力测定/防效/安全性Key words
Plutella xylostella/pesticides/indoor toxicity test/control effect/safety分类
农业科技引用本文复制引用
逯昀,王红军,贾利元,王春华..6种药剂对田间小菜蛾的防治效果及其安全性评价[J].河南农业科学,2017,46(7):77-80,4.基金项目
河南省科技攻关项目(172102110252) （172102110252）
商丘市科技攻关项目(201210041) （201210041）
