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四年来,作者对油茶炭疽病的侵染途径、传播方式、发病的阶段性、特点和具体条件职及病害蔓延等規律进行了研究。 結果指出,病菌侵染途径以伤口为主,也可能从自然孔道侵害果实。潛育期随气温上升而縮短,15℃至28℃时,潛育期由15天缩短为5天。分生孢子借助雨滴、风夹雨进行传播,干燥气流不能传菌。林間象(虫甲)、螞蚁不是传病的主要媒介。病害发生具有鮮明的季节性。果实发病期长,自4月至10月。病害有初期、中期、盛期和末期四个时期。感病宿主存在、菌源量积累和高温降雨为病害发生、发展的决定性因素。病害发展有間歇期和消长期。植株发病类型有:早发型、中发型、后发型及突发型四种。病果类型有:内侵型、邻侵型和外侵型三种。油茶炭疽病的逐年蔓延速度在一年内为36.5—50.0％;二年内为51.9—60.3％;三年内为55.8—61.8％。
In the past four years, the authors studied the pathways of infection of anthrax in Camellia oleifera, the mode of transmission, the stages of disease, the characteristics, the conditions of specific conditions and the spread of diseases. The results indicate that pathogen infection mainly wounds, but also may damage the fruit from the natural channel. The incubation period shortened with the temperature rising. When the incubation period was between 15 ℃ and 28 ℃, the incubation period was shortened from 15 days to 5 days. Conidia with raindrops, wind clip rain spread, dry air flow can not be transmitted bacteria. Forest like (insect), ants are not the main medium of disease. Disease occurs with a distinct seasonal. Fruit onset period is long, from April to October. Diseases are early, middle, peak and end of the four periods. The existence of susceptible hosts, accumulation of bacterial sources and high temperature and rainfall are the decisive factors for the occurrence and development of the disease. Disease development is intermittent and ebb. The incidence of plant types: early hair type, hair style, hair style and sudden type four. Disease types are: intrusive, ova and extroverted three. The annual spread of anthracnose in Camellia is 36.5-50.0% within one year, 51.9-60.3% in two years and 55.8-61.8% in three years.