最近几年,无论大棚还是露地种植的西瓜、甜瓜,病毒病一年较一年发病重。一旦发生,很难防治。并且对西甜瓜的产量和品质影响较大,甚至绝收。所以,如何控制病毒病的发生,十分必要。 西甜瓜病毒病,主要有花叶和蕨叶两种类型。在西甜瓜苗期就出现黄绿相间的花斑,叶片皱缩扭曲,难以坐果或形成畸形果实。 一、发病条件 干旱高温发病较重。大棚里面的西甜瓜发病较轻,容易防治;露地种植的西甜瓜发病较重,难以防治。 二、防治方法 1.选择抗病品种:选用抗病状元、白斯 In recent years, regardless of greenhouse or open-planted watermelon, melon, viral disease year heavier than a year. Once it happens, it is hard to prevent and cure. And the impact on the yield and quality of western melon larger, or even off. Therefore, how to control the occurrence of virus disease is very necessary. Western melon virus disease, there are two types of leaf and fern leaves. In the western melon seedling stage appear yellow-green and white spots, leaf folds distorted, difficult to set fruit or deformed fruit. First, the incidence of severe conditions of high incidence of drought. West melon inside the greenhouse incidence of lighter, easy to control; open planting of melon more serious, difficult to control. Second, the prevention and treatment methods 1. Select disease-resistant varieties: selection of disease-resistant elements, Beth