茶树枝枯病初步确定为真菌性病害,其病原为Macrophoma SP.。发病初期,罹病枝条的嫩梢和叶 片下垂,似缺水状,叶片失去光泽转淡绿,进而主脉、侧脉渐褐化,叶脉附近组织随之变褐,终至罹病枝叶全呈褐化干枯,枯叶仍附在枝条上,而无感病枝 Tea tree blight initially identified as a fungal disease, the pathogen is Macrophoma SP. Early onset, the diseased branches of young shoots and leaves drooping, like water shortages, green leaves turn shine, and then the main vein, lateral veins gradually browning, followed by browning of the veins, and finally to the affected branches and leaves were brown Withered, dead leaves are still attached to the branches, and no susceptible branches