新疆农业科学2024，Vol.61Issue(3)：665-671,7.DOI:10.6048/j.issn.1001-4330.2024.03.016
5种农药对梨小食心虫的室内毒力测定及田间药效评价
Indoor toxicity determination and field efficacy trials of several pesticides against Grapholita molesta in walnut production areas of Hotan County
摘要
Abstract
[Objective]In order to screen out pesticides with strong protection and extermination against pear psyllid based on scientific guidance for production.[Methods]In this experiment,the indoor toxicity and field efficacy of five pesticides against pear psyllid were determined by bioassay and spray method respectively.[Results]The experiment showed that the toxicity of 5%emamectin benzoate-lufenuron to the 3rd instar lar-vae of pear borer was the highest,and its LC50 value was 4.12 mg/L,followed by 10%lambda-cyhalothrin,14%chlorpyrifos-permethrin and 10%chlorantraniliprole.The LC50 values were 8.23,15.14 and 16.07 mg/L;25%emamectin benzoate-chlorobenzuron was the lowest toxic with an LC50 value of 40.65 mg/L;while 10%chlorantraniliprole 1,000 times and 5%emamectin benzoate-lufenuron 2,000 times were the most ef-fective in killing the larvae,and the corrected mortality rate of larvae reached more than 85%after 24 h and 100%at 72 h.10%chlorantraniliprole and 5%emamectin benzoate-lufenuron had the best rapid efficacy,and the efficacy of field spraying reached more than 60%after 1 d.The efficacy was 87.72%and 82.46%re-spectively at 5 d after application,which was significantly higher than other pesticides.[Conclusion]In con-clusion,10%chlorantraniliprole and 5%emamectin benzoate-lufenuron have good control effect on pear small heartworm larvae in peach planting area in Hotan County.关键词
梨小食心虫/室内毒力测定/田间药效评价Key words
Grapholita molesta/indoor toxicity determination/field efficacy evaluation分类
农业科技引用本文复制引用
魏杨,陈国祥,阿地力·沙塔尔,买买托合提·吐孙,田光宇..5种农药对梨小食心虫的室内毒力测定及田间药效评价[J].新疆农业科学,2024,61(3):665-671,7.基金项目
新疆维吾尔自治区重点研发计划项目(2021B02004)"核桃重大蛀果害虫暴发成灾规律、监测预警及防控关键技术研究"(2021B02004-1) Project of Key R&D Program of Xinjiang Uygur Autonomous Region(2021B02004)"Research on Outbreak Regularity,Monitoring and Early Warning and Key Technology of Prevention and Control of Walnut Fruit Pest"(2021B02004-1) （2021B02004）
