今年3月,在长沙召开了全国主要农作物病虫预测预报的座谈会,现将棉区各省有关棉铃虫的资料摘录介绍如下,以供我省植棉地区参考。 一、发生情况 棉铃虫在我国北部棉区是常发性害虫,近年来南方棉区,特别是长江流域棉区发生严重。 In March this year, a symposium was held in Changsha on the prediction and forecast of major pests in crops in our country. The excerpts of cotton bollworm from various provinces in the cotton province are introduced below for reference to the cotton planting areas in our province. First, the occurrence of cotton bollworm in the northern cotton area of ​​our country is a perennial pest in the southern cotton area in recent years, especially in the Yangtze River area of ​​cotton serious.