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棉花病虫害是实现棉花高产、优质、低成本的主要障碍,据有关资料报导,在我国为害棉花的害虫约300种左右,其中常见的害虫30多种,病害有40多种。由于病虫的为害,年损失棉花约占总产的10％左右,病虫严重发生年份损失更大。棉花收获后到第二年春棉播种这段时间,各种病虫均处于越冬阶段,生命力最弱,是防治好时期,因此,抓住时机,搞好棉花病虫防治,对于控制棉花生育期内各种病虫的危害将起到很大的作用。现将防治技术简介如下,供各地棉农参考。
Cotton pests and diseases are the main obstacle to high yield, high quality and low cost of cotton. According to relevant data, there are about 300 kinds of pests that harm cotton in our country, of which there are more than 30 common pests and more than 40 kinds of diseases. Due to pests and diseases, the annual loss of cotton accounts for about 10% of the total output, pests and diseases serious loss of greater years. Cotton harvest to spring and sowing the next year during this period, all kinds of pests and diseases are in the winter stage, the weakest vitality is the period of prevention and control, therefore, seize the opportunity to improve cotton pest control, to control the cotton growth period The hazards of various pests and diseases will play a big role. Now the prevention and treatment of technical briefings are as follows, for farmers around the reference.