随着人们经济、文化、物质生活水平的提高,消费者对食品和环境安全提出了更高要求,当前农产品形势面临的最大挑战是农药残留问题。近年来,我国大棚蔬菜栽培面积有了很大的发展,由于棚内生态环境较为特殊,温度高,湿度大,光照较弱,空气流动缓慢,蔬菜生长旺盛且芽嫩,蔬菜易遭受病虫危害,病虫害发生种类多,扩展快,危害重。生物农药是利用生物活体或生物代谢过程产生的具有生物活性的物质或从生物体中提取的物质,作为防治农作物病虫草害的农药。生物农药绝大多数品种都低毒、低残留,且具 With the improvement of people’s economic, cultural and material living standards, consumers have placed higher demands on the safety of food and the environment. The biggest challenge to the current situation of agricultural products is pesticide residues. In recent years, there has been a great development in greenhouse vegetable cultivation area in our country. Due to the special ecological environment in the shed, the temperature is high, the humidity is high, the light is weak, the air flow is slow, the vegetables grow vigorously and buds are tender, and the vegetables are susceptible to pests and diseases , Pests and diseases occur many kinds, rapid expansion, endanger heavy. Biopesticide is the use of biological living organisms or biological metabolic processes generated by the biological activity of substances or substances extracted from the organism, as a crop pest and disease prevention and control of pesticides. Most varieties of biological pesticides are low toxicity, low residue, and with