论文部分内容阅读
近年来，喀什等主要棉区随着农业产业结构、布局的变化，自然气候的异常，导致棉铃虫（Heliothisarmige，。a）的生活习性、消长、发生、危害等与80年代有所不同。由于研究、认识不足，未能采取相应防治措施，危害加重，经济损失巨大。1防治中的新动态1．1第一代危害较以往加重
In recent years, the main cotton areas such as Kashgar have changed from the 1980s due to the change of agricultural structure and layout and the abnormal natural climate, leading to the fact that the life habit, growth, occurrence and harm of the cotton bollworm (Helicoverpa armigera) are different. Due to the lack of understanding and research, the corresponding prevention and control measures have not been taken, the harm is aggravated and the economic loss is huge. 1 new developments in prevention and treatment 1.1 The first generation of hazards than ever before