几年来,我站预测稻纵卷叶螟主要采用:查化蛹进度,预测发蛾盛期和卵孵盛期;查发蛾高峰及新虫包和卷叶尖出现情况,预测防治对象田和施药时间。实践证明,沿用一种调查方法进行预测,往往与实际发生情况出入很大,甚至会错过防治时机。因此,必须中、短期预报相结合,特别是主要类型田新虫包和卷叶尖 In recent years, I station prediction leaf roller mainly used: check the progress of the pupae, predict the moth period and the incubation period of eggs; check the hair moth peak and the new worm package and roll tip emergence, forecast control object and Application time. Practice has proved that the use of a survey method to predict, often very different from the actual situation, and even missed the timing of prevention and treatment. Therefore, we must combine medium and short-term forecast, especially the main types of Tian new worm package and roll tip