泡桐干瘤病是危及泡桐幼树正常生长的一种生理病害。据调查,我省禹县、襄县、睢县、民权等地均有此病的发生。为了有效地控制此病的发生和蔓延,我们从一九八一年四月份开始,对此病进行了较系统的观察和防治试验,现将结果报告于后,仅供参考。一、病害症状干瘤病多发生在二至五年生泡桐幼树上。此病四月份开始发生,六、七月份为盛期。早期突出症状是树干表面出现数量 Paulownia is the risk of Paulownia saplings young tree normal growth of a physiological disease. According to the survey, Yu County, Xiang County, Pixian County, civil rights and other places have the disease occurred. In order to effectively control the occurrence and spread of the disease, we conducted a systematic observation and prevention trial on the disease beginning in April 1981 and the results are reported hereafter for reference purposes only. First, the disease symptoms Dry tumor occurs in two to five years Paulownia young trees. The disease began in April, June and July for the peak. Early symptoms are the appearance of the trunk surface