南方水稻黑条矮缩病是我省近几年来新发生的一种病毒性病害,具有突发性强,扩散蔓延快特点。2010年我省发生面积超过1000万亩以上,绝收面积超过10万亩,危害性极大。该病由白背飞虱传播,一旦感染,病株便不可治愈。其主要感染期为秧田期和分蘖 Southern rice black-streaked dwarf disease is a newly occurring virus disease in our province in recent years, with a sudden strong, spreading and spreading characteristics. In 2010, the area in our province exceeded 10 million mu and the absolute area exceeded 100,000 mu, which was extremely harmful. The disease is transmitted by the white-backed planthopper, and once infected, the diseased plant becomes incurable. The main infection period is seedling stage and tillering