1982年,我们在魏县原种场协调运用药剂处理棉籽、间苗带出田外、内吸剂涂茎和利用自然瓢虫等四项措施,综合防治棉花苗期蚜虫,效果很好。一、药剂处理棉籽:据试验,用3%呋喃丹微粒剂1斤,拌棉籽4斤。4月18日播种,到5月30日百株蚜量一直控制在百头以下,有效期50天左右。同时还兼治蝼蛄、地老虎和刺激棉苗生长。用75%3911乳油1斤, In 1982, we coordinated the use of medicaments in Weixian County to deal with cottonseed, seedlings out of the field, the internal use of drug-coated stems and the use of natural ladybugs and other four measures to prevent and treat cotton seedling aphids, with good results. First, the treatment of cottonseed medicine: According to the test, with 3% carbofuran granules 1 kg, cottonseed 4 kg. April 18 sown to May 30 hundreds of aphids has been controlled in less than one hundred, valid for about 50 days. At the same time also ridicule, to the tiger and stimulate the growth of cotton seedlings. With 75% 3911 EC 1 kg,