5%高效氯氟氰菊酯对异迟眼蕈蚊及昆虫病原线虫的毒力毒性测定  

Virulence of 5%lambda-cyhalothrin to Bradysia difformis Frey and entomopathogenic nematodes

作　　者：张晓波 杨建春 钱秀娟 ZHANG Xiaobo;YANG Jianchun;QIAN Xiujuan(College of Plant Protection,Gansu Agricultural University,Biocontrol Engineering Laboratory of Crop Disease and Pests of Gansu Province,Lanzhou 730070,China;Linxia Agricultural Technology Extension Service Center,Linxia 731100,China)

机构地区：[1]甘肃农业大学植物保护学院,甘肃省农作物病虫害生物防治工程实验室,甘肃兰州730070 [2]临夏州农业技术推广服务中心,甘肃临夏731100

出　　处：《甘肃农业大学学报》2022年第4期84-87,95,共5页Journal of Gansu Agricultural University

基　　金：国家自然科学基金项目(31960559);甘肃农业大学科技创新基金-学科建设专项(GAU-XKJS-151);甘肃省科技计划项目(21JR7RA819)。

摘　　要：【目的】探讨5%高效氯氟氰菊酯与昆虫病原线虫是否可以混用,以及探讨两种方式混用对异迟眼蕈蚊(Bradysia difformis Frey)的防治效果。【方法】采用培养皿滤纸法,分别测定了5%高效氯氟氰菊酯对异迟眼蕈蚊三龄幼虫的毒力,以及对斯氏昆虫病原线虫Steinernema feltiae 0619HT的毒性,并计算毒力回归方程及致死中浓度,以评价该线虫与5%高效氯氟氰菊酯能否混用来防控异迟眼蕈蚊。【结果】5%高效氯氟氰菊酯对异迟眼蕈蚊的控制效果较差,且对昆虫病原线虫的毒性较大。【结论】在实际应用中,不能将昆虫病原线虫与5%高效氯氟氰菊酯混用来防治异迟眼蕈蚊。【Objective】The study aimed to explore the control effectiveness of 5%beta-cyhalothrin mixed with entomopathogenic nematodes against Bradysia difformis Frey.【Method】To evaluate whether nematodes and pesticides could be mixed in the control of the Bradysia difformis Frey,we firstly tested the virulence of 5%beta-cyhalothrin both to the third instar larvae of Bradysia difformis Frey and to the ento‐mopathogenic nematode Steinernema Feltiae 0619HT by the petri plate filter paper method,and then calcu‐lated the toxicity regression equation and lethal median concentration.【Result】Our results showed that 5%beta-cyhalothrin was less effective in controlling Bradysia difformis Frey and was strongly toxic to en‐tomopathogenic nematodes.【Conclusion】It was suggested that the entomopathogenic nematodes cannot be mixed with 5%beta-cyhalothrin in the control of Bradysia difformis Frey in practice.

关 键 词：昆虫病原线虫 异迟眼蕈蚊 高效氯氟氰菊酯 毒力测定 

分 类 号：S433[农业科学—农业昆虫与害虫防治]