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我地棉田苗期主要害虫有棉蓟马、地老虎,生长中、后期有棉黑蚜、拐枣蚜、棉长管蚜、棉花叶螨、棉铃虫。1983年以来,我们实行目标管理,取得了显著效益,大幅度地减少了化防次数和面积。四年累计种植棉花20.1万亩,施药次数由1982年的6.2次减少到1.9次,百斤皮棉治虫费从8.66元降到2.43元(四年平均数),农药费下降71.9%,控制效果比过去提高70%,完全利用天敌控制棉铃虫近6万亩,棉蓟马、棉黑蚜基本不
My cotton seedling stage main pests cotton thrips, to the tiger, growth, the late cotton aphids, turnip aphids, cotton aphids, cotton spider mites, cotton bollworm. Since 1983, we have achieved the goal of management and have achieved significant benefits, significantly reducing the number and area of chemical prevention and control. In the four years, a total of 201,000 mu of cotton was planted. The number of pesticides was reduced from 6.2 times in 1982 to 1.9 times. The pest cost for pendants was reduced from 8.66 yuan to 2.43 yuan (four-year average), and the pesticide cost dropped by 71.9%. The control effect 70% more than in the past, completely utilizing natural enemies to control nearly 60,000 hectares of cotton bollworm, cotton thrips, cotton black aphid basically