杨梅赤衣病是为害杨梅树的枝干病害，发病重的果园株发病率９７％以上，一般发病株率５０％以上。该病在幼树和成年树上均可发病。发病重的成年树发病２一３年即可死亡，严重影响杨梅的生产，根据我们观察，该病同时为害柑桔、梨、批等多种果树。 （１）发病症状该病在杨梅上为 Myrica rubra disease is to damage the branch of Myrica rubra disease, the incidence of orchard strains of more than 97% incidence, the general incidence of more than 50% of the plant. The disease can be sick in young trees and adult trees. Severe adult tree incidence of 2 to 3 years to death, seriously affecting the production of bayberry, according to our observation, the disease also harmful citrus, pear, batch and other fruit trees. (1) symptoms of the disease in the bayberry