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为了摸索微生物杀虫剂在干旱地区对松毛虫的防治效果,1981～1982年我们利用松毛虫杆菌粉剂、白僵菌粉剂以及这两种粉剂混合(1∶1),对赤松毛虫进行了药效测定,林间试验和大面积防治推广试验,现将两年试验结果总结如下。一、试验材料 1、菌剂:①松毛虫杆菌粉剂,每克含孢子量40～45亿(绥中县菌厂一步扩大法产品,菌种为辽阳铧子林场提供);②白僵菌粉剂,每克含孢子量30～50亿(绥中县菌厂产品);
In order to explore the effect of microbial pesticides on the prevention and control of pine caterpillars in arid areas, from 1981 to 1982, we tested the efficacy against the pine caterpillars by mixing them with Beauveria bassiana powder, Beauveria bassiana powder and the two kinds of powder (1: 1) Determination, forest testing and large-scale prevention and treatment promotion test, the results of two years are summarized as follows. First, the test materials 1, fungicides: ① caterpillar fungus powder, spore per gram of 4.0 to 4.5 billion (Suizhong County step by step expansion of plant products, strain Liaoyang Hua Zi farms provide); Beauveria bassiana powder , Per gram spore containing 30 to 5 billion (Suizhong County plant products);