4种杀虫剂对细缘杜鹃斑蛾的室内药效测定  

Laboratory Evaluation of Four Pesticides against Rhodopsona rutila

作　　者：刘浩凯 李桥 刘卫荣 仇辉康 张辉 王翠兰 陈玲芳 Liu Haokai;Li Qiao;Liu Weirong;Qiu Huikang;Zhang Hui;Wang Cuilan;Chen Lingfang(Natural Resources and Planning Bureau of JingningShe Nationality Autonomous County,Lishui 323500,Zhejiang;Ecological Forestry Development Center of JingningShe Nationality Autonomous County,Lishui 323500,Zhejiang;Qingtian County Forestry Bureau,Lishui323900,Zhejiang)

机构地区：[1]景宁畲族自治县自然资源和规划局,浙江丽水323500 [2]景宁畲族自治县生态林业发展中心,浙江丽水323500 [3]青田县林业局,浙江丽水323900

出　　处：《防护林科技》2022年第3期30-32,36,共4页Protection Forest Science and Technology

基　　金：景宁畲族自治县科技计划项目(2016A 23)。

摘　　要：为控制细缘杜鹃斑蛾(Rhodopsona rutila)对云锦杜鹃(Rhododendron fortunei)的危害,通过选用4种化学药剂,采用浸叶法对高山细缘杜鹃斑蛾3~4龄幼虫进行室内毒力测定,分别观察24 h、48 h后4种杀虫剂的毒杀效果,结果表明:24 h后5%氯虫苯甲酰胺和2.5%氯氟氰菊酯对细缘杜鹃斑蛾幼虫均有一定的致死效果,校正死亡率分别为55%和70.69%,半致死浓度(LC_(50))分别为8.707 mg·L^(-1)和21.485 mg·L^(-1)。48 h后5%氯虫苯甲酰胺校正死亡率可达91.38%,半致死浓度(LC_(50))为2.377 mg·L^(-1);2%甲维盐可达83.33%,半致死浓度(LC_(50))为10.396 mg·L^(-1);60%呋虫胺致死效果最差,最高校正死亡率为48.33%,半致死浓度(LC_(50))为52.733 mg·L^(-1)。推荐使用5%氯虫苯甲酰胺对高山细缘杜鹃斑蛾进行防治。In order to control the damage of Rhodopsona rutila to Rhododendron fortunei,toxicity of 4 types pesticides on the 3rd to 4th instar larvae of R.rutila was determined by leaf dipping method.The toxic effects of 4 pesticides were observed after 24 h and 48 h.The results showed that 5%chlorantraniliprole and 2.5%cyhalothrin had a certain lethal effect on R.rutile after using 24 h,and corrected mortality rates were 57.78%and 50%,respectively.Half lethal concentration(LC_(50))was 8.707 mg·L^(-1)and 21.485 mg·L^(-1).The corrected mortality rate of 5%chlorantraniliprole reached 91.38%after 48 hours,and LC_(50)was 2.377 mg·L^(-1);the corrected mortality rate of 2%emamectin benzoate was 83.33%and LC_(50)was 10.396 mg·L^(-1).The worst lethal effect was 60%dinotefuran,which the highest corrected mortality was 48.33%,and LC_(50)was 52.733 mg·L^(-1).In conclusion,it is recommended to use 5%chlorantraniliprole to control R.rutila.

关 键 词：云锦杜鹃 细缘杜鹃斑蛾 室内药剂测定 半致死浓度LC_(50) 

分 类 号：S763.42[农业科学—森林保护学]