摘要
本文报道了近年来对一些常用杀虫剂的毒力测定结果,并对今年棉铃虫猖獗发生,造成棉花大面积减产的原因进行了分析。从毒力、抗药性、害虫为害特点等方面论述了防治主要棉虫的最佳农药品种,施药技术等,并介绍了作者防治棉铃虫的成功经验和防治棉铃虫幼虫的最佳复配制剂881.
This paper reports the result of bioassay of some concmon pesticides in recent years,and analyses the cause of reduction of cotton output in large area. And the best farm chemicals and techniques of applying manure were dcscussed from toxicity, drugfast and the destructiveness of pests. It also introduces the best compound fertilizer 881 and the author's successful experience in pieventing and controlling the larvae.
出处
《河南职业技术师范学院学报》
1993年第4期7-10,共4页
Journal of Henan Vocation-Technical Teachers College
关键词
毒力测定
防治
棉铃虫
Cotton pests,toxicity,techniques of prevention and control