泡桐丛枝病的防治廖龙泉泡桐丛枝病又名泡桐扫帚病，分布极广，一般发病率在２０～４０％，严重地区高达８０％以上。感病的幼苗、幼树常于当年枯死，大树感病后常引起树势衰退、村积生长量大幅度下降，甚至造成死亡，是泡桐生产中最严重的一种病害。其防治方法如下：１、... Paulownia witches broom disease prevention and treatment Liao Longquan Paulownia twig branch aka Paulownia broom disease, a very wide distribution, the general incidence of 20 to 40%, severe areas up to 80%. Sick seedlings, young trees often died in the same year, the tree often lead to decline after the illness, the substantial decline in the amount of village plot, and even cause death, is Paulownia production of the most serious diseases. The prevention and cure method is as follows: 1, ...