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药剂治虫,在当前防虫工作中还是一种重要手段,而对药剂的选择,则是决定防治成败和效果好坏的关键。解放以来我区防治棉虫使用杀虫剂约51种左右,其中有机氯制剂6种,有机磷制剂21种,有机氯有机磷混合剂7种,氨基甲酸酯类药剂7种,无机药剂3种,植物性药剂3种,混合农药2种,生物农药1种,烟雾剂1种。各地应用上述药剂取得了一些经验,象混合用药,轮换用药,加辅助剂和发展低毒低残留品种,都收到了很好的效果。为了进一步发挥农药的效益,搞好棉花治虫,现把各地防虫所见,集成“八看用药”。一、看害虫种类选用农药
Pest control in the current pest control work is still an important means, and the choice of agents, it is the key to determining the success and failure of prevention and treatment and the effect is good or bad. Since liberation, about 51 kinds of insecticides have been used to control cotton insects in our district, including 6 kinds of organic chlorine preparations, 21 kinds of organic phosphorus preparations, 7 kinds of organic chlorine organophosphorus mixture agents, 7 kinds of carbamate agents, 3 kinds of inorganic agents , 3 kinds of botanicals, 2 kinds of mixed pesticides, 1 kinds of biological pesticides and 1 kinds of aerosols. Some experiences have been gained from the application of the above-mentioned agents in various places, such as mixed medicine, rotation medicine, supplemental auxiliary agents and the development of low-toxic and low-residue varieties, all of which have received very good results. In order to further give full play to the benefits of pesticides and do a good job in controlling pests of cotton, we are now seeing pest control in all areas and integrating the “eight drugs for treatment.” First, see the pest species selection of pesticides