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棉蚜和棉铃虫是我县棉田的主要害虫。原定的防治指标是适合化学防治的,实行综合防治后,防治指标虽有所放宽,但总的来说还是比较紧。从1986年以来在中国科学院动物研究所的指导下,从棉田生态系统整体出发,充分发挥系统内自我调节和控制作用,进行了放宽苗期棉蚜和二代棉铃虫防治指标的试验示范和推广,共计推广5万亩棉田,覆盖面占全县植棉面积的25％,获得了比较满意的结果。
Cotton aphid and cotton bollworm are the main pests in cotton field in our county. The original prevention and control index is suitable for chemical prevention and control. After the implementation of comprehensive prevention and control measures, the prevention and control index has been relaxed, but in general it is still relatively tight. Since 1986, under the guidance of the Institute of Zoology, Chinese Academy of Sciences, from the ecosystem of cotton fields as a whole, give full play to the role of self-regulation and control within the system, carried out to ease the seedling stage cotton aphid and cotton bollworm prevention and control indicators of demonstration and promotion , A total of 5 million mu of cotton fields to promote the coverage of the county accounted for 25% of cotton area, obtained more satisfactory results.