近几年，棉铃虫大暴发，许多单剂已不能有效地控制其为害，具有明显增效作用的复混剂取而代之。虽然如此，但因使用不当，防效不佳。为此，特提出正确使用的几点看法。1．弄清成分，切勿乱混厂家出于盈利的目的，都对各自的配方保密，混剂大多不注明成分，又因各种宣传工具大讲 In recent years, a large outbreak of cotton bollworm, many single agent can not effectively control its damage, with obvious synergistic effect of compounding agent instead. However, due to improper use, poor control. To this end, special make the correct use of several points. 1. Understand the ingredients, do not mess with the manufacturers for profit purposes, all of their formulations are kept confidential, most do not specify the ingredients, but also because of a variety of promotional tools