我区地处洞庭湖区,以种植双季稻为主,越冬作物有油菜、小麦、绿肥等。主要水稻害虫有螟虫、纵卷叶虫,稻飞虱,叶蝉等,害虫天敌有380种,属蜘蛛类的有65种,草问小黑蛛Erigonidum graminicolum就是其优势种之一。近年来,笔者对草间小黑蛛在稻田的消长、对害虫的控制效果,以及保护利用等问题进行了一些调查研究,现将结果 My area is located in the Dongting Lake area, mainly to planted double cropping rice, winter crops have rapeseed, wheat, green manure and so on. The main pests include stem borer, mesocarp, planthopper, leafhopper, etc. There are 380 species of natural enemies of pests and 65 species of spiders. Erigonidum graminicolum is one of its dominant species. In recent years, I conducted a number of investigations on the decline and growth of the small black spider herbaceous plants in paddy fields, the control effect on pests, and the protection and utilization. Now the results