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泡桐丛枝病(MLO)是泡桐重要病害之一。为了寻求有效的防治技术,1985年,我们做了两项与营林措施有关的试验。经过三年观察比较,初步看出,泡桐丛枝病的发生与苗木根系大小,损伤度、接干方法、修枝强度等有着密切的关系。一、材料与方法(一)材料供试品种为白花桐。选择外观无丛枝病状的1年生埋根苗,苗木地径5.5—7厘米,高3.5米以上,根幅直径为1米。
Paulownia witches broom disease (MLO) is Paulownia one of the important diseases. In 1985, we conducted two experiments related to silviculture measures in order to seek effective control technologies. After three years of observation and comparison, it is initially concluded that the occurrence of Paulownia witches broom disease is closely related to the seedling root size, the degree of damage, the dry method, and the pruning strength. First, materials and methods (A) materials for the test species Baihuatong. Select the appearance of non-birch disease 1-year-old rooting seedlings, seedlings 5.5-7 cm in diameter, 3.5 meters high above the root diameter of 1 meter.