柑桔黄龙病是我国华南及华东部分地区的严重病害,主要分布于广东、广西、福建和台湾省。近年来,该病在江西、浙江,云南、四川省陆续发生。1982年在全国柑桔黄龙病检疫座谈会上,有的代表指出湖南南部个别县也有黄龙病发生。为了确诊此病在我省的发生,自1982年10月开始,我们进行 Citrus Huanglongbing is a serious disease in parts of South China and East China, mainly distributed in Guangdong, Guangxi, Fujian and Taiwan provinces. In recent years, the disease in Jiangxi, Zhejiang, Yunnan, Sichuan Province one after another. At the forum on quarantine of citrus Huanglongdian in 1982, some representatives pointed out that there were also Huanglongbing in individual counties in southern Hunan. In order to confirm the occurrence of the disease in our province, we started in October 1982