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拟长毛钝绥螨Amblyseius pseudolongispinosus,分布于上海、江苏、浙江、山东、辽宁、福建、湖北、云南等地。据复旦大学生物系、上海市植保植检站等单位几年来的研究证实,该螨适应性强、捕食量大、增殖迅速、饲养方便,易于保存。经对2万个个体的观察和125万亩棉花、西瓜、茄子等作物的试验,结果表明:释放拟长毛钝绥螨能在6～8天内有效地控制叶螨为害,效果优于化学农药,并可协调使用,是防治叶螨的有效天敌。为了进一步评价拟长毛钝绥螨的应川范围和控制效能,确定田间最经济有效地释放的益害比以及预测化学防治适期提供依据,1982年6～11月,对该螨进行了食性试验和捕食量研究。
Amblyseius pseudolongispinosus is distributed in Shanghai, Jiangsu, Zhejiang, Shandong, Liaoning, Fujian, Hubei and Yunnan. According to the Fudan University Department of Biology, Shanghai plant protection phytosanitary station and other units over the past few years confirmed that the mite adaptability, predation, rapid proliferation, easy feeding, easy to save. After the observation of 20000 individuals and 1250000 acres of cotton, watermelon, eggplant and other crops, the results showed that the release of pseudo-hairy Amblyseius can effectively control spider mite damage within 6 to 8 days, the effect is better than chemical pesticides , And can be coordinated use, is to control spider mites effective natural enemies. In order to further evaluate the range and control efficacy of A. mongholicus, to determine the most economically and effectively released benefit-to-harm ratio in the field and to provide a basis for predicting the appropriate period of chemical control, from June to November 1982, Experimental and Predation Studies.