论文部分内容阅读
大豆易受病虫害的为害,为确保大豆品质和商品性,必须及时防治病虫害。目前沧州市大豆的主要病害是大豆花叶病毒病、大豆胞囊线虫病、纹枯病、锈病、霜霉病等;主要虫害由大豆蚜虫、豆天蛾、造桥虫、小夜蛾等。在防治方法上除了选用抗病品种、合理轮作倒茬、科学管理以外,药剂防治很关键。1、大豆花叶病毒。大豆花叶病毒是大豆的一种世界性的重要病害,一般发生率30%—60%,有一些品种甚至达到100%,常用防治方法有多
Soybean susceptible to pests and diseases, in order to ensure the quality and commercialization of soybeans, we must timely control pests and diseases. At present, the main diseases of Cangzhou soybean soybean mosaic virus disease, soybean cyst nematode disease, sheath blight, rust, downy mildew; the main insect pests by the soybean aphids, bean worms, bridge bugs, such as Helicoverpa armigera. In addition to the prevention and control methods used in resistant varieties, reasonable rotation, scientific management, pharmaceutical control is the key. 1, soybean mosaic virus. Soybean mosaic virus is a worldwide soybean major disease, the general incidence of 30% -60%, some varieties even reached 100%, commonly used methods of prevention and control more