14种杀虫剂对栎黄枯叶蛾4龄幼虫的室内生物活性  

Bioactivity of 14 Insecticides Against the 4th Instar Larvae of Trabala vishnou gigantina

作　　者：陈玉鑫 龚悦 杨文涛 李峰 韩国伟 李伯辽 李广伟[1] 陈秀琳 CHEN Yu-xin;GONG Yue;YANG Wen-tao;LI Feng;HAN Guo-wei;LI Bo-liao;LI Guang-wei;CHEN Xiu-lin(College of Life Science,Yan'an University,Yan'an 716000,Shaanxi,China;Forestry Workstations,Wuqi County Forestry Bureau,Yan'an 717600,Shaanxi,China)

机构地区：[1]延安大学生命科学学院,陕西延安716000 [2]吴起县林业局林业工作站,陕西延安717600

出　　处：《西北林学院学报》2022年第2期170-175,共6页Journal of Northwest Forestry University

基　　金：延安市科技计划园区与县域特色经济创新链项目(2019ZDQY-002);延安大学2020年校级大学生创新创业训练计划项目(D2020101)。

摘　　要：为筛选防治栎黄枯叶蛾幼虫的高效药剂,采用浸虫法测定14种杀虫剂对其4龄幼虫的室内杀虫活性。结果表明,4种拟除虫菊酯类杀虫剂对栎黄枯叶蛾4龄幼虫均具有高致死能力,半致死质量浓度LC_(50)值介于0.199~2.046 mg/L;乙基多杀菌素、阿维菌素和甲维盐也有较高的杀虫活性,LC_(50)值在2.733~6.470 mg/L;苦参碱对幼虫的毒力水平最低,在测试的质量浓度梯度内试虫校正死亡率均小于45%。除苦参碱外,其他13种杀虫剂的杀虫活性大小依次为:高效氯氰菊酯、溴氰菊酯、高效氯氟氰菊酯、联苯菊酯、乙基多杀菌素、阿维菌素、甲维盐、辛硫磷、氯虫苯甲酰胺、四氯虫酰胺、杀虫双、甲维虫酰肼、马拉硫磷。综合考虑药剂残留及沙棘作为果叶兼用的生态经济型树种,拟除虫菊酯类杀虫剂可用于栎黄枯叶蛾幼虫大发生时的应急药剂,乙基多杀菌素、阿维菌素和甲维盐等生物源农药可作为常用药剂,在高效防治栎黄枯叶蛾幼虫的同时兼顾环境及生态效益。In order to screen out the effective insecticides for controlling the larvae of Trabala vishnou gigantina occurring in sea buckthorn(Hippophae rhamnoides)and other plant species,the bioactivities of 14 insecticides to the 4th instar larvae were tested by insect immersion method.The results showed that the four pyrethroid insecticides showed high insecticidal activity after 48 h of treatment,with LC_(50) values ranging from 0.199 to 2.046 mg/L.Spinetoram,abamectin,and emamectin benzoate also had high toxicity levels,with LC_(50) values ranging from 2.733 to 6.470 mg/L.The toxicity level of matrine to larvae was the lowest,and the corrected mortality was lower than 45%under the tested concentration gradient.In addition to matrine,the toxicity of the other 13 insecticides was as follows:beta-cypermethrin>deltamethrin>lambda cyhalothrin>bifenthrin>spinetoram>abamectin>emamectin benzoate>phoxim>chlorantraniliprole>tetrachlorantraniliprole>bisulfap>emamectin benzoate·tebufenozide>malathion.Considering pesticide residues and sea-buckthorn as an ecological and economic plant species for both fruit and leaf,pyrethroid insecticides can be used as emergency insecticides for larval outbreak of T.vishnou,and biological pesticides such as spinetoram,abamectin and emamectin benzoate can be used as commonly used pesticides,which can effectively control the larvae of T.vishnou and give consideration to environmental and ecological benefits.

关 键 词：栎黄枯叶蛾 沙棘 杀虫剂 杀虫活性 

分 类 号：S763.306[农业科学—森林保护学]