水稻条纹叶枯病近年大发生原因浅析及防治研究应用

Analysis on the Cause of Outbreak of Rice Stripe Disease and Its Control Research in Recent Years

水稻条纹叶枯病是由灰飞虱为媒介传播的病毒病。近年来在六合区连年大发生,其主要原因是与灰飞虱冬后基数大、带毒率高、感病品种面积大、栽培方式不同及防治方法不正确等因素有关;生产上制定了选用抗病品种、科学用药、加强预测预报、治虫控病和栽培避虫等防治策略。

Rice stripe virus （RSV） is a kind of virus disease spred by Laodelphax striatellus. In recent years, it appears severely in several consequent years in large areas, its main cause is related to some factors as follows： cardinals of Laodelphax striatellus after winter is large, the virus carried rate is high, the area of susceptible variety is wide, cultivation pattern is different and control method is not correct. Some control strategies are established in production, such as selecting disease-resistant varieties, scientific application of pesticides, strengthening forecast, controlling diseases and pests, avoiding pests in cultivation and so on.