化学农药的大量施用,造成环境污染,害虫抗药性急剧增长等问题,尤以棉蚜更为明显,防止时费工费药,加大了防治成本,给防止造成很大困难。为解决上述问题,我们已于83—86年进行了生防试验,现将研究结果重点进行综述。一、试验内容及结果 1、简化大批饲养方法,适应农业生产需要: 在进行人工控制七星瓢虫休眠期的研究中大多采用的是罐头瓶加网纱盖,人工每日二次 Chemical pesticides in large numbers, resulting in environmental pollution, rapid growth of pest resistance and other issues, especially cotton aphid more obvious, to prevent the time-consuming drugs, increased prevention and control costs, to prevent great difficulties. In order to solve the above problems, we conducted a biological prevention test in 1983-86. We will now focus on the review of the findings. First, the test content and results 1, to simplify a large number of feeding methods to meet the needs of agricultural production: In the artificial control of Dormant Ladybird dormancy most of the research is used canned bottle net yarn cover, artificial twice daily