Cucumber virus disease symptoms and prevention methods
Symptoms: Cucumber virus disease is mainly harmful to leaves and melons. It can occur at the seedling stage. The cotyledons in the seedling stage become yellow and wither. The young leaves are dark green and light green with a mosaic. In the adult plant, the diseased plants were dwarf, and the internodes were short and thick. The leaves were obviously shrunk and thickened. The new leaves were yellow-green leaves. When the diseased leaves were severe, the leaves were gradually yellowed. After the onset of melon strips stopped growing, the surface was dark green and white piebald. In severe cases, the surface of the melons is uneven or deformed, and the severely diseased plants are shortened between the internodes, clustering the leaflets, and failing to accumulate melon, leading to atrophy and death. Mainly rely on locusts, planthoppers, field operations spread, under the strong conditions of high temperature and drought, severe disease. Lack of water, lack of fertilizer management. Control methods: Use shade net to cool the seedlings, shading, and keep away from diseased crops. Immediately after transplanting, spray and root with “Tianda 2116†1000 times solution to promote seedling prevention. In the early stage of disease, 20% poisonous nemesis 500 times fluid or 20% virus A500 fluid can be sprayed once every 7-10 days. Garden Supply Store,Indoor Gardening Supplies,Landscape Supplies,Magic Garden Supplies Changzhou Satidi Import and Export Co., Ltd. , https://www.guanjiejt.com