论文部分内容阅读
前言马尾松毛虫(Dendrolimus punctatus Walker)是松树的主要害虫,对林业生产危害很大,一般使用飞机防治,虽效果好,但难免对天敌有所影响,为探索飞机喷洒生物农药防治马尾松毛虫的技术、效果及经济效益等问题,1984年中国民航局把飞机喷洒青虫菌六号液剂(Bacillus Thurinoiensis Var galleriae)防治马尾松毛虫的试验研究,列为重点科研项目,两年来,由民航广州管理局专业航空处,湖北省林业厅营林处,湖北省农科院植保所,民航湖北省局,广州市林业局等部门共同合作,在湖北、广
Foreword Dendrolimus punctatus Walker is the main pest of pine and it is very harmful to forestry production. It is generally used for the prevention and control of Dendrolimus punctatus Walker. Although effective, it is inevitable to affect natural enemies. Technology, effectiveness and economic benefits. In 1984, CAAC included the pilot study on the prevention and control of Dendrolimus punctatus by Bacillus thurinoiensis Var galleriae as a key scientific research project. In the past two years, Bureau of Professional Aviation, Forestry Department of Hubei Forestry Department, Hubei Academy of Agricultural Sciences plant protection, Civil Aviation Administration of Hubei Province, Guangzhou Forestry Bureau and other departments to work together in Hubei, Canton