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蚜虫是蔬菜栽培中发生量最大,危害期最长的害虫。采用无公害棉蚜防治技术,一可提高防治效果,减少投入,增加经济效益;二可降低农药残留,提高蔬菜品质,达到无公害生产的目的。1农业防治技术1.1选用抗虫品种根据不同品种的抗虫性强弱进行选择,生产上一般选择抗虫品种。1.2消灭越冬虫源
Aphids are the pests that occur most often in vegetable cultivation and have the longest period of harm. The use of pollution-free cotton aphids control technology, one can improve the control effect, reduce input, increase economic efficiency; Second, reduce pesticide residues, improve vegetable quality, to achieve the purpose of pollution-free production. An agricultural control technology 1.1 Selection of insect-resistant varieties According to the different varieties of insect resistance to choose the strength of the general selection of insect-resistant varieties. 1.2 eliminate overwintering source