论文部分内容阅读
大搞昆虫资源以支援工农業建設,是当前的急务之一。开发利用昆虫資源应該兩条腿走路。增加虫产产量是直接增加国家財富的道路,而利用天敌消灭农林害虫則是间接的方法。以虫治虫的生物防除法,从变更生物羣落关系出发,能够根本消灭虫害,但是需要較長的时間。在这方面,目前国內的試驗多未利用引种的天敌昆虫,而經驗証明,外来的虫种效果较快较大。因此,去年在布拉格召开了首次会议商討天敌的国际交換問題,今年还將继续召开。虫产利用問題有生产和銷路兩个方面,因而研究工作也必須采取綜合的方式。以紫膠工作为例,研究膠虫的生物学特性和天然敌害,并摸清寄主植物的生理狀况和栽培技术,是为人工放养科学化找出基础;测定膠虫生長泌膠最适宜的气候条件,不仅便利产量
Engaged in insect resources to support the construction of industry and agriculture is one of the immediate priorities. Development and utilization of insect resources should be two legs to walk. Increasing pest production is a direct way to increase national wealth, and the use of natural enemies to eliminate agroforestry is an indirect method. The pest control method of insect pests, from changing the relationship between biological communities, to eliminate pests, but takes a long time. In this regard, most of the domestic trials do not utilize the introduced natural enemy insects, and experience has shown that exotic worms are faster and more effective. Therefore, the first meeting last year in Prague on the international exchange of natural enemies will continue this year. There are two aspects of the production and marketing of pest utilization problems, so the research work must also take an integrated approach. Taking shellac work as an example, the study of the biological characteristics of pest insects and natural enemies, and find out the physiological state of host plants and cultivation techniques, is to find the basis for scientific artificial stocking; The climatic conditions not only facilitate the production