论文部分内容阅读
柑桔黄龙病由类细菌引起。 １９９９年 １０－ １１月，笔者就赣南地区会昌县柑桔黄龙病发生与防治现状作了调查，现报告如下。１调查方法在本县西江、小密、庄口、珠兰、湘江、高排、晓龙等镇（乡）的部分果园进行调查，小果园（０．６７ｈｍ２以下）采用详查法，大果园则随机
Citrus Huanglongbing caused by bacteria. From October to November 1999, the author made a survey on the occurrence and control of citrus Huanglongbing in Huichang County in southern Jiangxi Province. The report is as follows. 1 Survey Method In some counties in Xijiang, Xiaomi, Zhuangkou, Zhuzhu, Xiangjiang, Gaopao and Xiaolong counties in this county, some small orchards (under 0.67hm2) Then random