论文部分内容阅读
稻纵卷叶螟是我区水稻的重要害虫之一。自从一九六九年以来,第二、第三、第四代连年发生猖獗为害,局部成灾,尤其是雨水较多的年份和氮肥过多的田块受害更烈,造成田间一片枯白。因此,稻卷纵叶螟的防治,已成为我区夺取早晚稻丰收的一个重要环节。为了进一步贯彻“预防为主,综合防治”的植保工作方针,搞好我区的生物防治工作,降低用药水平,发挥有益天敌的作用,减少害虫抗性和环境污染,在毛主席革命路线指引
Rice leaf roller is one of the important pests of rice in our district. Since 1969, the second, third and fourth generations have been rampant in successive years. Local disasters, especially those with heavy rainfall and fields with excessive nitrogen fertilizer, have caused more damage in fields. Therefore, the prevention and control of rice roll Chilo suppressalis has become an important link in our area to seize the harvest of morning and evening rice. In order to further implement the principle of “prevention first and comprehensive prevention and cure”, we should do a good job in biological control in our district, reduce the level of medication, play a beneficial natural enemy and reduce pest resistance and environmental pollution. In the direction of Chairman Mao’s revolutionary line