黑条矮缩病是危害小麦、水稻、玉米等作物的重要病害。我地区５０、６０年代曾一度流行，７０年代基本灭绝，近年来又逐渐发生危害。如金华县罗埠等镇１９９５年近５３３．３ｈｍ２晚稻发生黑条矮缩病。１９９７年发病面积扩大到１０００ｈｍ２，给粮食生产带来严重威胁。... Black-streaked dwarf disease is an important disease endangering crops such as wheat, rice and corn. My area was once popular in the 1950s and 1960s and was basically extinct in the 1970s, and gradually harmed in recent years. Jinhua County, such as the town of Luo port in 1995 nearly 533.3hm2 late rice black-streaked dwarf disease. In 1997, the disease area expanded to 1000hm2, which posed a serious threat to food production. ...