摘要
为了解吡虫啉对褐飞虱的应用技术，进行了不同用药量的筛选试验，筛选出吡虫啉防治褐飞虱的最佳用药量，每ｈｍ２用药１５０ｇ，兑水９００ｋｇ常规喷雾，药后１ｄ防效可达７１．８％，比扑虱灵５１．９％的防效高２７．７％，控害时间长达３０ｄ以上。吡虫啉对稻田天敌（蜘蛛类）的杀伤率与扑虱灵相近，显著优于常用农药甲胺磷，对蝽象类昆虫（如黑眉绿盲蝽）的杀伤率与甲胺磷相近，是目前防治褐飞虱的首选药剂。
By selecting test, the optimum dose of Imidacloprid is 150 g/ha diluted with 900 kg of water in normal spraying The efficacy after one day reached to 71 8% and is 27 7% higher than Buprofesin (51 9%) The effect time for controlling was over 30 days its killing rate to the natural enemies was similar to Buprofezin′s and better than Methamidophos, and similar to Methamidophos for controlling stink bug (Ex black shouldered green capsid) Now it should be the first one selected among the chemicals to control brown planthopper
出处
《贵州农业科学》
CAS
1997年第2期31-33,共3页
Guizhou Agricultural Sciences
关键词
吡虫啉
褐飞虱
天敌
防治
药效试验
Imidacloprid
brown planthopper
natural enemies
control efficacy
