The rice gall dwarf virus(RGDV) had seriously occurred several times since early 1980s and has an increasing trend recently in the southwest of Guangdong province.

• 水稻瘤矮病自在国内被发现和报道以来已发生多次较大的流行,近年来都是中等偏重发病,并有不断蔓延趋势。