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我县是以粮为主的粮棉夹种地区,秋粮主要是水稻.二、三化螟是我县水稻上的主要害虫.由于这两种害虫交错发生,危害时间长,发生数量大,受害面积广,对水稻高产稳产影响极大.广大干部群众遵照毛主席关于“要注意灭虫保苗”的教导,与水稻螟虫进行了顽强的斗争.但是,目前大面积应用的治螟农药1.5%甲基1605、3%六六六混合粉(简称甲六粉),由于螟虫产生抗性等原因,防治效果有下降的趋势,而且毒性较大,残毒比较严重,长期使用污染环境.迅
My county is the grain-based grain and cotton species in the region, autumn is mainly rice .Bird, rice borer is my county rice on the main pests .As the two pests staggered, long-lasting harm, the occurrence of a large number of victims The area is wide and has a great impact on the high and stable yield of rice. The cadres and masses in general have conducted a stubborn struggle against rice stem borers according to Chairman Mao’s teachings on “Paying Attention to Exterminating and Protecting Seedlings.” However, at present, Base 1605,3% BHC powder (referred to as A powder), due to stem borer resistance and other reasons, there is a downward trend in the control effect, and more toxic, more serious residuals, long-term use of the polluting environment.