植物源农药是指有效成分来源于植物体的农药。植物源农药在农作物病虫害防治中具有对环境友好、毒性普遍较低、不易使病虫产生抗药性等优点,是生产无公害农产品应优先选用的农药品种。为了让广大农民和农技推广工作者能对植物源农药品种有比 Plant-based pesticides refers to the active ingredients derived from plant-based pesticides. Plant-based pesticides in the prevention and control of crop pests and diseases with environment-friendly, generally low toxicity, resistance to pests and other insects, etc., is the production of pollution-free agricultural products should be the preferred pesticide varieties. In order for the majority of farmers and agricultural extension workers can plant-derived pesticide varieties than