鸭梨黑心病发生在入库30～50天内或第二年的2～3月份。其病斑围绕种子部分的果心发生程度不同的褐变,严重时果肉全部变成褐色,并发出酒味。对此病可以采取(?)述三种防治措施。1.鸭梨刚入库时,可适当地提高库房温度,在贮藏期间再缓慢地降温。一般在入库时库温控制在8～10℃,保持一周左右后, Black pear heart disease occurs in storage 30 to 50 days or 2 to March of the second year. The lesions around the seed part of the core of the occurrence of different degrees of browning, severe all flesh becomes brown, and issued a wine taste. The disease can take (?) Described three kinds of prevention and treatment measures. 1. Yali just storage, the warehouse may be appropriate to increase the temperature during storage and then slowly cool. When the storage temperature is generally controlled at 8 ~ 10 ℃, after a week or so,