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近几年,我区富士苹果烂果特别多,据调查烂果率一般在20％～30％,严重者达到50％～60％。从1994年开始我们对烂果发生的原因及防治措施进行了调查,现简报如下。 一、烂果原因 据田间调查,引起烂果的主要病害是苹果轮纹病和炭疽病。两种病害流行的原因是多方面的。 1.高温、高湿 多雨的气候条件是两种病害流行的重要因素。两种病害均以风雨传播,同时高温高湿又给孢子的繁殖、散发提供了有利
In recent years, my district Fuji apple rotten fruit is particularly large, according to the survey rotten fruit rate is generally 20% to 30%, severe cases reached 50% to 60%. Since 1994, we have investigated the causes of rotten fruits and their preventive measures. The briefing is as follows. First, the causes of rotten fruits According to field surveys, the main diseases caused by rotten apple rings disease and anthracnose. The causes of the two diseases are many. 1.High temperature, high humidity and rainy weather conditions are two important factors in the epidemic. Both diseases are spread by wind and rain, at the same time high temperature and humidity again spore reproduction, distribution provides a favorable