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1998年奎玛流域棉蚜越冬基数大，发生期晚，发展迅速，发生面广，消退快，消亡早。本文从气象角度分析了棉蚜发生发展及消亡的特点，提出了防治棉蚜的几点意见。
In 1998, the aphids in Querui catchment had a large base of overwintering, occurred late, developed rapidly, and had a wide range of occurrences, dissipated rapidly and disappeared earlier. This paper analyzes the characteristics of cotton aphid development and demise from the meteorological point of view, and puts forward some suggestions for the prevention and control of cotton aphid.