论文部分内容阅读
镶黄旗亚力盖图林场与中国林科院林研所共同协作研究的“杨尺蠖核多角体病毒的应用研究”于去年10月通过林业部鉴定。杨尺蠖核多角体病毒是一种新病原,毒力较强,利用该病原的特性,以天然饲料在室内饲养增殖、接毒感染杨尺蠖幼虫。每十条死虫制剂就可防治一亩榆尺蠖发生地,防治效果达90％左右,且不污染环境、不杀伤天敌昆虫及有益生物。防治一次可控制危害4至5年(化学农药仅能控制1至2年),且防治费用较化防和生防低。自1978年以来,亚力盖图林场每年发生榆尺蠖面积约10000亩,受危害的林木,轻者影响树木生长,重者引起枝梢干枯或导致蛀干害虫的猖獗发
In the last year, the “Yellow River Polygonatum Nuclear Polyhedrosis Virus Applied Research”, which was jointly developed by Aristo-Capturing Forest Farm and Lin Institute of Forestry of China, was identified by the Ministry of Forestry last October. Yang Chih-chi nuclear polyhedrosis virus is a new pathogen, strong virulence, the use of the characteristics of the pathogen, with natural feed breeding in the indoor proliferation, poisoning infection Yangruyi larvae. Every ten dead insecticide preparations can prevent and cure a mu of Ulva pertusa, and its control effect reaches about 90%. It does not pollute the environment and does not kill natural enemies and beneficial organisms. Control once can control hazards 4 to 5 years (chemical pesticides can only control 1 to 2 years), and prevention and control costs and health prevention and control of low. Since 1978, the Yale Gaitu Forest Farm has an area of about 10,000 mu per year. The harvested trees and light trees affect the growth of trees. In particular, they cause the branches to dry or lead to the rampant development of stem borers