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泡桐是原产我国的速生树种之一。它的优良特性早已引起国家的重视和广大群众的喜爱。解放以来,特别是无产阶级文化大革命以来,泡桐发展非常迅速。如进行这项试验的龙阳大队已栽植泡桐92,000株,人均40株,农桐间作1380亩。但是,随着泡桐生产不断发展,这几年各地大量从河南调入兰考泡桐种根,以及长期无性繁殖和留根育苗,造成泡桐丛枝病逐年严重,轻者影响泡桐生长发育,重者造成全株死亡。经调查,大树染病率53％,一年生苗木染病率9％,严重影响了泡桐生产的进一步发展,生产单位,广大群众迫切希望解决这个问题。
Paulownia is one of the fast-growing tree species native to China. Its excellent features have long drawn the attention of the state and the masses. Since the liberation, especially since the Great Proletarian Cultural Revolution, Paulownia has developed very rapidly. For example, Longyang Brigade, which conducted the experiment, has planted 92,000 paulownia trees, with a per capita population of 40 trees and an inter-crop of 3,880 mu of camptotheca acuminata. However, with the continuous development of Paulownia production, in recent years, a large number of all over the province from the introduction of Paulownia korean roots, as well as long-term asexual reproduction and leave root nursery, resulting in Paulownia witches broom disease year by year serious, light the impact of Paulownia growth and development, Whole plant died. After investigation, the disease rate of trees is 53% and that of annual seedlings is 9%, seriously affecting the further development of the production of paulownia. The production units and the broad masses are eager to solve this problem.