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蜘蛛是棉花害虫的重要天敌类群,其发生量在各类天敌中居于首位,对控制棉蚜、棉铃虫、棉小造桥虫等害虫有显著作用。因此摸清棉田蜘蛛的发生情况,对开展生物防治,利用和保护自然蜘蛛资源具有重要意义。1979年以来,我们在定陶、曹县、东明等地对棉田蜘蛛的发生及环境因素进行了较系统的调查研究,现综合报道如下。
Spiders are important natural enemies of cotton pests, their occurrence in all kinds of natural enemies in the first place, on the control of cotton aphids, cotton bollworm, cotton, small bridges and other pests have a significant role. So to find out the occurrence of cotton spiders, to carry out biological control, use and protection of natural spider resources is of great significance. Since 1979, we conducted a systematic investigation into the occurrence of spiders and their environmental factors in cotton fields in Dingtao, Cao County and Dongming. The comprehensive reports are as follows.