危害葡萄的病害主要有霜霉病、黑痘病、白腐病和炭疽病等。这些病害分别危害叶片、新梢、叶柄、果梗、穗轴、卷须、花序和果实等不同部位,不仅影响葡萄的生长发育,而且还危其产量和品质。因此,应重视葡萄各生长期各种病害的监控工作,并采取有效措施进行综合防治,把病害损失降低到最低限度。下面介绍这几种主要病害的发生危害 Harm the grape diseases are mainly downy mildew, anthracnose, white rot and anthracnose and so on. These diseases endanger the leaves, shoots, petioles, fruit stems, cob, tendril, inflorescence and fruit and other different parts, not only affect the growth and development of grapes, but also its yield and quality. Therefore, attention should be paid to the monitoring of various diseases during the various growing stages of grapes, and effective measures should be taken to prevent and control the diseases so as to minimize the losses of the diseases. The following describes the occurrence of these major hazards