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一、烂果原因 据调查,引起烂果的主要病害是苹果轮纹病和炭疽病。 1.高温高湿 两种病害均风雨传播,同时高温高湿又给孢子的繁殖、散发提供了有利条件。1994年前期,降雨量大,气温高,田间烂果发生早而多,达30％以上;1995年相对干旱,烂果发生晚而少,只有10％左右。 2.树势过弱 有些果农错误地认为富士苹果不环剥(割)就不能成花,第二年就不
First, the causes of rotten fruit According to the survey, the main diseases caused by rotten apple rings disease and anthracnose. 1. High temperature and humidity Both diseases are spread by storm, while the high temperature and humidity spores give propagation, dissemination provides favorable conditions. Early 1994, heavy rainfall, high temperature, the occurrence of rotten fruit in the field as early as more than 30%; relative drought in 1995, rotten fruit occurred late and less, only about 10%. 2. Tree vigor is too weak Some fruit farmers mistakenly believe that Fuji apples can not be circumcised (cut) can not be spent, the second year