本文就害虫的化学防治。生物防治和综合防治的研究谈谈我的一些浅见,供参考。害虫化学防治的今昔世界农药的发展已有一千多年的历史,就世界范围而言,其演变发展过程可划分为三个时代。第一代从公元前到二十世纪四十年代。这个时代的特点是利用多种天然产物和一些无机矿物性药物作为消灭害虫的药剂,它们都存在一些缺点,不够理想。第二代 This article on pest chemical control. Biological control and comprehensive prevention and treatment of some of my humble opinion, for reference. Pesticide chemical control of the world past and present the development of pesticides has a history of more than a thousand years, on a worldwide basis, the evolution of the development process can be divided into three times. The first generation from BC to the 1940s. This era is characterized by the use of a variety of natural products and some inorganic mineral drugs as pesticides to eliminate pests, they all have some disadvantages, not ideal. Second generation