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生态系的观点,是整个综合防治思想的核心。农业生态系是一个农业地区,譬如说一个生产大队范围,在这个范围内,有非生物的自然环境;有各种农怍物(稻、麦、玉米、棉花、果树、蔬菜)和其他植物(树木、杂草、紫穗槐、花椒、石榴、土壤微生物);有各种动物(害虫、天敌昆虫、蜜蜂、家蚕、鱼虾、鸟类和其他动物);有各种农业活动(耕、种、病虫害防治、农田管理)。以上种种,构成了一个单位——农业生态系。在一个生态系中,各个组成部分都不是孤立存在的,而是互相依赖,互相制约的,任何一个组成部分的变
Ecosystem point of view, is the core of the integrated prevention and control. The agroecosystem is an agricultural area, such as a production brigade. Within this area, there are non-living natural environments. There are various types of agricultural products (rice, wheat, corn, cotton, fruit trees, vegetables) and other plants (Including pests, natural enemies, bees, silkworms, fish and shrimps, birds and other animals); various agricultural activities (plowing, planting , Pest control, farmland management). All of the above constitute a unit - the agro-ecosystem. In an ecosystem, each component does not exist in isolation, but interdependence, mutual restraint, any one component of the change