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一、发病规律1.白粉病:该病菌的菌丝在第二年春季温湿度条件适宜时,借风雨传播为害。该病菌喜欢冷凉气温和阴湿天气。该病的发生及流行与越冬菌量大小、橡胶树抽叶物候期长短、冬春季节气候条件密切相关,是一种典型的气候型病害。2.炭疽病:雨水和潮湿的气流是炭疽病病害流行的主要条件,风雨是炭疽病病害传播的主要途径。该病的发生及流行与品系抗病力、越冬菌量、物候、气候条件有密切关系。
First, the incidence of law 1 powdery mildew: the bacteria mycelium in the second spring of temperature and humidity conditions suitable, spread by the wind and rain damage. The bacteria like cold and humid and humid weather. The occurrence and prevalence of the disease and the amount of overwintering bacteria, the rubber tree leaves exuberance period, winter and spring climatic conditions are closely related, is a typical climate-type disease. 2. Anthracnose: Rain and humid air currents are the main conditions for anthrax epidemics, and wind and rain are the main pathways for anthrax disease transmission. The occurrence and prevalence of the disease and strain resistance, overwintering bacteria, phenology, climatic conditions are closely related.