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树毒茎腐病是由Ｄｉｐｌｏｄｉｎａ－ｐａｒａｓｉｔｉｃａ引起的枝部病害。病原菌孢子萌发的温度为５～３０℃，适温为２６℃，低于２０℃孢子萌发率下降。７月下旬开始发病，７～８月为发病高蜂期，９月下旬后病原菌进入越冬状态。不同品种抗性不同，以美国２１号感病最重。室内试验甲基托布津５００倍液防治效果最好，其次是４０％乙磷铝５００倍液和福美双５００倍液。
Tree stalk rot disease is a branch disease caused by Diplodina-parasitica. Pathogen spores germination temperature is 5 ~ 30 ℃, suitable temperature is 26 ℃, less than 20 ℃ spore germination rate decreased. In late July onset, 7 to August for the incidence of high bee, late September after the pathogen into the winter. Different varieties of different resistance to the United States on the 21st most susceptible. Methyl thiophanate-methyl indoor test 500 times the best prevention and control, followed by 40% aluminum phosphorus 500 times and the United States double 500 times.