水稻条纹叶枯病是一种病毒性病害,俗称“水稻癌症”。它具有三性:暴发性、迁移性和间歇性。我国南方稻区以及河南、河北、北京、辽宁等地都曾有发生,但在南方,除个别田块外,多零星分布。近年来在山东南部、云南中部、江苏、安徽和河南等地仍大面积发生,受害较重,严重影响水稻生产。植株发病早的多不能抽穗,发病迟的穗小、畸形,一般减产3%~5%,严重时减产20%以上。 Rice stripe virus is a viral disease, commonly known as “rice cancer.” It has three properties: violent, migratory and intermittent. Rice fields in southern China and Henan, Hebei, Beijing, Liaoning and other places have occurred, but in the south, except for individual plots, mostly sporadic distribution. In recent years, southern Shandong, central Yunnan, Jiangsu, Anhui and Henan are still large-scale occurrence of heavy damage, seriously affecting rice production. Early onset of plants can not be heading more late onset of small spikes, deformities, the general reduction of 3% to 5%, in severe cases more than 20% cut.