红提葡萄原产于美国加州，为蓬莱市新引进的鲜食优良品种。在本市日灼病发生严重，特别是在降雨偏多、高温高湿的年份，日灼病已成为毁灭性病害，减产严重，有的甚至绝收。１症状及损失日灼病为生理性病害，主要为害葡萄果实，以朝西向南的果粒表面较易受害。受害果粒最初在果 Red grapes native to the United States, California, Penglai City, the introduction of new varieties of fine food. Sunburn is a serious disease in this city, especially in the areas with heavy rainfall and high temperature and humidity. Sunburn has become a devastating disease, and the output is seriously reduced. 1 Symptoms and losses Sunburn is a physiological disease, the main damage to grape fruit, to the west facing the fruit surface more vulnerable. The victim fruit was originally in the fruit