泡桐是河南省主要速生树种,全省已栽植两亿多株。由于泡桐丛枝病的蔓延,每年病死桐苗约一百八十万株,新栽幼树病死约一百万株,桐材年生长量因病减产约二十三万立方米。1978—1981年本协作组曾对泡桐丛枝病的病原、发病规律和防治技术,进行了研究。本文是防治技术研究的总结。 Paulownia is the main fast-growing species in Henan Province, the province has planted more than 200 million strains. Due to the spread of the Paulownia witches broom disease, there are about 1.8 million dead seedlings each year. About one million new plantlings have died from the disease and about 230,000 cubic meters of annual growth have been lost. From 1978 to 1981, this group conducted a study on the pathogen, pathogenesis and prevention and treatment of Paulownia witches broom disease. This article is a summary of research on control technology.