不同杀虫剂对茶翅蝽的室内毒力测定  

Indoor Toxicity Test of Different Insecticides Against Halyomorpha halys

作　　者：王泽华[1] 王凡 王山宁 WANG Ze-hua;WANG Fan;WANG Shan-ning(Institute of Plant and Environmental Protection,Beijing Academy of Agriculture and Forestry Sciences,Beijing 100097;Agricultural Science Research Institute in the Third Division,Xinjiang Production and Construction Crops)

机构地区：[1]北京市农林科学院植物保护环境保护研究所,北京100097 [2]新疆生产建设兵团第三师农业科学研究所

出　　处：《现代农业科技》2020年第18期95-96,共2页Modern Agricultural Science and Technology

基　　金：北京市农林科学院科技创新能力建设专项(KJCX201910)。

摘　　要：为筛选出防治茶翅蝽的有效药剂,在室内采用叶管药膜法测定了9种杀虫剂对茶翅蝽2龄若虫的毒力。结果表明,杀虫活性最高的是2.5%高效氯氟氰菊酯水乳剂,其48 h的LC50值为3.16 mg/L;其次为100 g/L联苯菊酯乳油和25%噻虫嗪水分散粒剂,其LC50值分别为3.98、5.84 mg/L;70%吡虫啉水分散粒剂和60 g/L乙基多杀菌素悬浮剂对茶翅蝽2龄若虫的毒力水平相当,LC50值分别为8.05、8.80 mg/L。对茶翅蝽毒力最低的是17%氟吡呋喃酮可溶液剂,LC50值为128.80 mg/L。本研究为科学使用杀虫剂防治茶翅蝽提供了重要依据,推荐轮换使用2.5%高效氯氟氰菊酯水乳剂、100 g/L联苯菊酯乳油、25%噻虫嗪水分散粒剂、70%吡虫啉水分散粒剂和60 g/L乙基多杀菌素悬浮剂。In order to select effective insecticides against Halyomorpha halys,the toxicity of nine insecticides against 2nd instar nymphs of H.halys was measured using a leaf-tube residual bioassay in laboratory.The results showed that 2.5%lambda-cyhalothrin water emulsion had the highest toxicity among all the tested insecticides,with a LC50 value of 3.16 mg/L after 48 h.Followed by 100 g/L bifenthrin EC and 25%thiamethoxam water dispersible granules,with the LC50 values of 3.98 mg/L and 5.84 mg/L,respectively.The toxicity of 70%imidacloprid water dispersible granules and 60 g/L spinetoram suspension against 2nd instar nymphs of H.halys was similar,with the LC50 values of 8.05 mg/L and 8.80 mg/L,respectively.17%flupyradifurone solution showed the lowest toxicity,with the LC50 values of 128.80 mg/L after 48 h.This study could provide important references for the scientific use of pesticides against H.halys,and the recommended insecticides to rotate were 2.5%lambda-cyhalothrin water emulsion,100 g/L bifenthrin EC,25%thiamethoxam water dispersible granules,70%imidacloprid water dispersible granules and 60 g/L spinetoram suspension.

关 键 词：茶翅蝽 杀虫剂 室内毒力测定 

分 类 号：S433.3[农业科学—农业昆虫与害虫防治]