我场地处广西东北部的越城岭南麓,栽培柑桔已有三十多年的历史,柑桔种植面积达3236亩,前几年由于从外地引进新品种及调运苗木,导致裂皮病发生。目前此病对我场的柑桔生产已构成潜在威胁,为了解柑桔裂皮病在我场的发生发展情况,于1989年7月及1990年12月对全场果园进行两次全面调查,现将调查结果及防治意见分述如下。 My field is located in the southeastern part of Yuechengling in the northeast of Guangxi. The cultivation of citrus has a history of more than 30 years. The planting area of ​​citrus is 3236 mu. A few years ago, due to the introduction of new varieties and the transfer of seedlings from other places, . At present, the disease poses a potential threat to the production of citrus in our field. In order to understand the occurrence and development of citrus split disease in our field, we conducted a thorough investigation of the entire orchard twice in July 1989 and December 1990, Now the findings and prevention and control comments are as follows.