湖南省临澧县属丘陵地区,以种植双季稻为主,病虫种类多,危害严重,特别是近年水稻病毒病严重发生,给水稻生产带来了很大的影响。临澧县发生的水稻病毒病主要是黄矮病,其次是普通矮缩病。黄矮病于1971年开始发生,1972年早稻发病较多,晚稻和单季晚稻发病面积更大,造成严重损失。1973年 Linqu County in Hunan Province is a hilly region, with double-cropping rice as the mainstay, with many kinds of pests and diseases and serious harm, especially in recent years, the serious occurrence of rice virus disease has brought great impact on rice production. The main rice disease in Linli County is yellow dwarf disease, followed by the common dwarf disease. Yellow dwarf disease began in 1971, more incidence of early rice in 1972, late rice and single season late rice incidence of a larger area, resulting in serious losses. 1973