兰考桐是群众历来喜爱栽培的速生用材树种之一。近几年来,随着泡桐生产的发展,丛枝病蔓延非常普遍,成为桐树当前的主要病害。为了进一步探讨受害程度和规律,解除一些疑议,我们用解析病树和健树树干的方法,作了计算对比。 Lantana is one of the fast-growing timber species that people have always loved to cultivate. In recent years, with the development of paulownia production, the spread of arbuscular mycorrhizal disease is very common and has become the current main disease of tung tree. In order to further explore the extent and laws of victimization, and to lift some of the suspicions, we used the method of analyzing the diseased and healthy tree trunks to make comparisons.