稻纵卷叶螟是我县双季稻的主要害虫,尤以晚稻受害为重,造成叶片枯白,不实粒增加,影响产量。一般被害叶率20～30％,严重的达90％以上。遵照伟大领袖毛主席关于“不论做什么事情,不懂得那件事的情形,它的性质,它和它以外的事情的关联,就不知道那件事情的规律,就不知道如何去做,就不能做好那件事”的教导,一九七二年以来,我们对稻纵卷叶螟的发生规律及防治方法进行了一些研究。现将资料整理如后,仅供参考。一、发生世代,发生时期和虫态历期经一九七二年八月十四日至一九七三年八月二十日和一九七三年十二月三日越 Rice leaf roller is the main double-season rice pests in our county, especially late rice damage as a result, causing the leaves withered, unreal grain increases, affecting the yield. The general victim leaf rate of 20 to 30%, severe up to 90% or more. Following the example of Chairman Mao, the great leader, who said “no matter what it does or does not know about it, its nature, its association with anything other than it, it does not know the law of that matter and does not know how to do it. We can not do that well. ”Since 1972, we have done some research on the occurrence and control of rice leaf roller. Now after finishing the information, for reference purposes only. First, the occurrence of generations, occurrences and insects during the period of August 14, 1972 to August 20, 1973 and December 3, 1973, the more