论文部分内容阅读
90年代以来,通过对菏泽市棉花种植结构、害虫及天敌发生动态、第一、四代棉铃虫防治指标、第五代棉铃虫发生特点、棉铃虫发生与气候因素的关系、棉花害虫综合防治等进行了研究,提出了综合防治措施,取得显著成效。
Since the 1990s, according to the dynamics of cotton planting structure, pests and natural enemies in Heze City, the first and fourth generations of cotton bollworm control indicators, the fifth generation of cotton bollworm occurrence, the relationship between the occurrence of cotton bollworm and climate factors, cotton pest integrated control Conducted a study, put forward a comprehensive prevention and control measures, and achieved remarkable results.