病毒病是大蒜的常见病害,大蒜生长全过程都可能发生,但集中发病期为返青后至抽薹前,即3月下旬至5月中旬。该病主要表现为分生多束小辫而不抽生蒜薹,危害性极大,不仅造成蒜薹与蒜头减产,而且降低其质量。而目前市面上又没有对症的专用农药,一般多使用病毒A、菌毒清之类的药物,效果很不理想,况且没有成熟的预防措施。因此,广大蒜农对该病束手无策,蒙受很大损失。山东苍山县科协蔬菜研究所的科研人员,急蒜农所急,深入蒜田,观察研究,经过化验得知:1、 Virus disease is a common disease of garlic, garlic may occur during the entire growth process, but the focus of the onset of greening after bolting before, that is, from late March to mid-May. The disease is mainly manifested as multiple bundles of pigtail without pumping garlic sprouts, extremely harmful, not only caused the garlic sprouts and garlic production, but also reduce its quality. At present, there is no symptomatic special pesticide on the market, and the general use of such drugs as virus A and bacteriocarps is not very satisfactory. Moreover, there are no mature precautionary measures. Therefore, the majority of garlic farmers do nothing to the disease, suffered a great loss. Shandong Cangshan Association for Science and Technology Research Institute of Vegetable Scientists, acute garlic farmers urgent, in-depth garlic field, observational studies, after testing that: 1,