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葡萄烂果的原因有以下三种:1.病菌感染,一般引起葡萄烂果的主要病害是白腐病、炭疽病、黑腐病。2.营养不良,树势衰弱,偏施氮肥,缺少钾、钙、微量元素,或挂果过多、负载量大,致使植株长势弱,降低了抗病能力。
There are three reasons for grape rotten fruit: 1. Pathogen infection, the main diseases caused by rotten grapes are white rot, anthracnose and black rot. 2. Malnutrition, the tree weak, partial nitrogen fertilizer, the lack of potassium, calcium, trace elements, or fruiting too much, the load is large, resulting in weak plant growth, reducing disease resistance.