引进天敌不能象对于一般天敌一样,它的有效性的要点可分为害虫、天敌及两者的生活环境三个方面。即选择什么样特性的害虫作为防治对象;选择什么样特性的天敌作为引进对象;根据两者的生活环境,选择什么样特性的防治场所,在防治场所的选择上,引进天敌的原产地的气候如何更加适合所选择的防治场所,可以说 The introduction of natural enemies can not be like the general natural enemies, its main points of effectiveness can be divided into pests, natural enemies and the living environment of the three aspects. That is, what kind of pest to choose as a control object; choose what kind of natural enemies as the object of introduction; according to both the living environment, choose what kind of characteristics of the place of prevention and control in the choice of places, the introduction of natural climate of origin How to be more suitable for the selected place of prevention and control can be said