油茶炭疽病初次侵染原广,再次侵染次数多时间长,危害部位多,发生面积大。10月份从花蕾和花底部侵入,引起落蕾、落花和僵果。4—5月侵染嫩叶和新梢,造成叶片向上卷曲呈棕褐色轮放状病斑和新梢枯死;4—9月侵染幼果,造成落果。病落果率一般为30—40％,严重时颗粒无收。 Camellia anthrax initial infection of the original wide, repeated the number of infections for a long time, more harmful sites, the occurrence of large area. Invaded from the buds and flowers at the bottom in October, causing plum blossom, falling flowers and stiff fruits. From April to May, young leaves and shoots were infested, causing the leaves to curl upwards to turn brown spots and shoots withered; 4 to 9 months of young fruit infested, causing fruit drop. The diseased rate of disease is generally 30-40%. In severe cases, the granules are not collected.