用涂茎器施药防治棉蚜具有工作效率高、防治效果好、杀伤天敌少、既省工又省药的优点。此方法的基本原理是把具有内吸性药剂涂在棉株基部使全诛带毒。助壮素也具有内吸性,为了利用这一特性、改进使用技术,去年我所采用涂茎器做了棉花涂施助壮素试验,效果很好。现介绍如下: 1984年6月3日我们在弥市区刘桥村五组(原区农科所)作了助壮素涂棉茎试验,选生长、管理较一致的田块,设每亩涂助壮素0.5克(纯含 Spraying insecticide with cotton stem aphid has the advantages of high working efficiency, good control effect and less killing natural enemies, which not only saves labor and saves medicine. The basic principle of this method is to apply a systemic agent to the base of the cotton plant to make it all poisonous. To help melanin also has internal absorption, in order to take advantage of this feature, to improve the use of technology, last year I used to do a cotton coating stem applicator to help test the cellulose, the effect is very good. Now introduced as follows: June 3, 1984 We were Liuqiao Village, Miyun District, five groups (formerly Agricultural Institute) made Zhuangzhuang prime cotton plant test, the election growth and management more consistent plots, set acres Tuchuan prime 0.5 grams (purely containing