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害虫天敌是生物防治的重要资源,我省从1978年开始,有计划地开展农业害虫天敌资源调查,范围多达64个县市,以水稻、棉花、旱粮、茶树、果树、蔬菜的主要害虫和主要天敌为对象。四年来,初步了解我省主要作物上主要害虫的天敌类群、优势种、分布情况、消长规律、生物学特性,及其对害虫的控制效应,并且对影响天敌的因素和保护利用途径作了初步探讨。
Natural enemies of pests are important resources for biological control. Since 1978, our province has carried out a survey of natural insect pests of natural enemies in a planned way, covering a total of 64 counties and cities. The major pests of rice, cotton, dry land, tea trees, fruit trees and vegetables And the main natural enemies as the object. In the past four years, preliminary understanding of the predators, dominant species, distribution, growth and decline patterns, biological characteristics of main pests on major crops in our province and their control effects on pests were made, and the factors influencing natural enemies and the ways of protection and utilization were preliminary Discussion.