近日,接到湖北省汉川市庙头镇雷祖村植棉农户马桂方两次来电,反映他家种植的5亩棉花,大部分已被盲蝽蟓为害,村内其他农户的棉花也有被害现象,虽然自己已经用药防治了一次,但效果不够明显,特询问如何彻底防治。盲蝽蟓一年一般发生5代,第一代多在5月下旬至6月上旬为害,当气温在20~25℃、持续阴雨、相对湿度在60%以上时,很易导致盲蝽蟓的发生。进入2~3代,棉花开始现蕾时,为害更 Recently, Ma Guifang, a farmer receiving cotton farmers in Leifu Village, Miaotou Town, Hanchuan City, Hubei Province, made two calls to reflect the 5 mu of cotton planted in his home. Most of the cotton has been harmed by the bugs and bugs. Cotton from other farmers in the village is also victimized. Although I have been using the drug once, but the effect is not obvious enough, especially asked how thoroughly prevention and treatment. Five generations occur commonly in the year. The first generation is mostly damaging from late May to early June. When the temperature is between 20 and 25 ℃ and the rainy weather persists and the relative humidity is above 60%, it can easily lead to the bugs occur. Into the 2 to 3 generations, the cotton began to bud, damage more