摘要
1992年华北各省棉铃虫猖獗发生。本文根据调查资料对其发生特点及原因进行了分析,并据此提出在充分发挥生态平衡和棉花自身调节功能的前提下,综合运用农业、生物、化学方法的防治策略。
In 1992, bollworm rampantly occured in several provinces of North China area. According to the data from investigation,the reason and charactor of occurancewas analysed Based on the analysis , the prevention and control ways with muti-using agricultural, biological and chemical methods were presented at the precondition of giving full play of coelogical balance and selfregulation of cotton.
出处
《河南职业技术师范学院学报》
1993年第2期38-41,共4页
Journal of Henan Vocation-Technical Teachers College
关键词
棉铃虫
发生原因
综合防治
bollworm , reason of occurance, muti-prevention and control.
