由于长期受干旱影响,今年不少地方的大蒜年前根系发育较差,蒜苗抗冻能力较弱,各种病害发生程度重于往年。笔者近期走访山东省苍山、金乡、商河等大蒜之乡,发现当前大蒜生产应着重防治以下四种主要病害。一、大蒜病毒病在以往大蒜生产中,大蒜病毒病被不少蒜农所忽视。今年 Due to the long-term drought, many parts of this year’s garlic root system development is poor, weak ability of frost-resistant garlic, the occurrence of various diseases heavier than in previous years. The author recently visited Cangshan, Jinxiang, Shanghe garlic and other townships and found that the current garlic production should focus on the prevention and control of the following four main diseases. First, the garlic virus disease In the past garlic production, garlic virus disease was ignored by many garlic farmers. this year