今年我省植保工作会议上,对于稻螟的预测预报工作进行了全面讨论,兹整理如下,以供参考。 关于稻螟发生期的预测 根据虫态历期,结合气象、水稻生育等环境因子,综合分析,进行发生期的预测,经过几年来的实践证明,较为准确。 1.越冬代蛹、蛾初见期的预测 据几年来的观察,越冬幼虫在 This year’s plant protection conference in our province, for the prediction of rice stem borer carried out a comprehensive discussion, are hereby organized as follows for reference. Prediction of the occurrence of rice stem borer According to the insect state history, combined with environmental factors such as meteorology, rice growth and other comprehensive analysis, the occurrence of the forecast, after several years of practice proved to be more accurate. Overwintering generation pupal, moth early forecast According to several years of observation, overwintering larvae in