近年来,随着种植业结构的调整和品种布局的多样化以及免耕法的盛行和机械耕作的普及,使二化螟桥梁田增多,适生环境优化,其发生和为害复杂化。与过去相比,呈现出许多新特点,这在南方双季稻区有一定的普遍性。在螟虫无害化治理过程中,笔者通过研究和掌握这些新特点,从而采取相应 In recent years, with the adjustment of planting structure and the diversification of variety distribution, and the prevalence of no-till and the popularization of mechanized farming, the number of bridges in the stem borer increased, the environment for the adaptation of the environment was optimized, and the occurrence and damage were complicated. Compared with the past, showing many new features, which in the southern double cropping pad has a certain degree of universality. In the process of harmless stem borer management, the author through the research and master these new features, which take the corresponding