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稻纵卷叶螟是江苏省水稻上的重要害虫。该虫在本省常年发生3代,即四(2)代、五(3)代和六(4)代。其中五(3)代及苏南沿江局部地区的六(4)代为主害代。近10年来,稻纵卷叶螟在本省持续偏重以上发生。常年发生面积超过400万hm2次,自然卷叶
Rice leaf roller is an important pest on rice in Jiangsu Province. The pest occurs three generations in the province perennial, that is, four (2) generations, five (3) generations and six (4) generations. Among them, five (3) generations and six (4) generations in some areas along the southern Jiangsu coast are the main victims. In the past 10 years, the rice leafroller overweight in the province above occurred. Perennial area of more than 4 million hm2 times, natural rolling leaves