稻纵卷叶螟发生与防治总结

• 机 构: 吴兴县农科所塘南病虫观测站,
• 出 处: 科技简报
• 发表日期: 1975年13期
• 关键词: 稻纵卷叶螟 水稻害虫 早稻 耕作制度 二熟制 化蛹进度 历期 寄生率 虫源基数 熟制

稻纵卷叶螟过去在我县只是间歇性发生的一种次要的水稻害虫,随着水稻耕作制度和栽培条件的不断改变,近年来已成为常发性的主要害虫。我们在总结广大社员群防群治的经验的基础上,对此虫的发生规律、猖獗因子、预测预报及防治技术作了一些调查研究。现将结果简要报导如下,以供参考。

In the past, the Cnaphalocrocis medinalis was only a secondary rice pest that intermittently occurred in our county. In recent years, it has become a major pest with the continuous change of rice farming system and cultivation conditions. On the basis of summing up the experience of mass prevention and mass control of mass members, we made some investigations and studies on the occurrence rules, rampant factors, forecasting and prevention techniques of this pest. The results will now be briefly reported below for reference.