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我省水稻螟虫有三化螟、二化螟、大螟和褐边螟四种。其中以三化螟近年来持续大发生,为害最严重。二化螟也有上升趋势。根据去冬今春气候温暖,越冬幼虫死亡很少,存活数量很多的情况,今年这两种螟虫都可能是个大发生年。为了彻底消灭它们的危害,保证水稻稳产高产,作者根据我省水稻螟虫发生为害的规律,以及多年生产实践和群众性的治螟斗争经验,将二、三化螟虫调查方法及药剂防治指标,整理写成本文,仅供我省各地参考。
Rice stem borer rice borer in our province, Chilo suppressalis, Sesamia inferens and Borer 4 species. Among them, the stem borer has continued to occur in recent years, the most serious damage. Chilo suppressalis also has an upward trend. According to the warmer winter and spring, the death of overwintering larvae is very small, the survival of a large number of cases, this year, both stem borers may be a big year. In order to completely eliminate their harm and ensure a stable and high-yielding paddy rice, the author, according to the rule of rice borers in our province and the experience of many years of production practice and mass management of stem borers, the investigation methods and pesticide control indicators Write the text, only for reference throughout the province.