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近年来，随着农业种植业结构的调整以及抗虫棉种植面积的连年扩大，棉田用药次数及用药量减少，致使棉盲蝽的发生与为害呈逐年加重的趋势。据笔者２０００～２００１年调查，百株虫量达２０～３０头，最高达６５头，棉花平均百株受害率５７％，叶片平均受害率８２％，脱落蕾铃?
In recent years, with the adjustment of agricultural planting structure and the increasing area of insect-resistant cotton acreage, the frequency and dosage of medication in cotton fields decreased, which led to the year-by-year increase of the occurrence and damage of cotton lacewings. According to the author from 2000 to 2001 survey, the number of hundred insects amounted to 20 to 30, up to 65, the average cotton injury rate of 57%, the average leaf damage rate of 82%, off the bell?