China's wine regions spread across the breadth of the country. On the humid, monsoonal east coast, Shandong Peninsula (including Yantai Province) and Hebei Province are responsible for over half of China's national production. The red wine grape variety Cabernet Gernischt is widely planted and vinified here. Fungal vine diseases are a major issue throughout the growing season with heavy spraying is required to keep the grapes in fair health.