1982年,我们在基点进行了内吸杀虫剂在棉花苗蕾期涂茎防治棉蚜和棉红蜘蛛的试验,取得比较好的结果。此方法不但防治效果好、使用简便、成本低,而且有利于保护天敌,减少环境污染。 1.呋喃丹涂茎防治棉蚜。5月18日、20日和22日在安陆县城北原种场红庙一队棉田进行这项试验。先将3％呋喃丹颗粒剂浸于45℃温水中。并充分搅拌,过滤,过滤液1份,加水5份、10份、15份、20份、配成1:5、1:10、1:15、1:20倍四个浓 In 1982, we carried out experiments on the control of cotton aphids and cotton spider mites with insecticides in cotton at the bud and bud stage at the base, and achieved good results. The method not only has the advantages of good prevention and control effect, simple and convenient use, low cost, but also helps to protect natural enemies and reduce environmental pollution. 1. Carbofuran stems against cotton aphids. This experiment was conducted on May 18, 20 and 22 in a team of cotton plants in Hongmiao, Beiluyuanchang, Anlu County. First 3% carbofuran granules immersed in 45 ℃ warm water. And fully stirred, filtered, the filtrate 1, 5 parts of water, 10 parts, 15 parts, 20 parts, dubbed 1: 5,1: 10,1: 15,1: 20 times the four concentrated