稻飞虱是危害水稻的重要害虫,常造成烂秆倒伏,损失极大。原属早稻的间歇性大害虫,近年早、晚稻发生都严重,尤以晚稻更为严重,其发生面积和危害程度都超过了早稻。 实践证明,选用抗性品种是防治稻飞虱重要措施之一。我们自1976年起在安仁县进行水稻品种抗褐稻虱筛选鉴定研究工作,现将初步结果整理如下: Planthopper is an important pest that endangers rice, often resulting in stalk lodging, great loss. It is an intermittent pest that is a part of early rice. In recent years, both late rice and late rice have become serious, especially in late rice. Its occurrence area and harm degree surpass that of early rice. Practice has proved that the selection of resistant varieties is one of the important measures to combat planthoppers. We have conducted research on screening and identification of rice varieties against brown planthopper in Anren County since 1976, and the preliminary results are summarized as follows: