20世纪90年代以来,北疆棉区枯萎病、黄萎病蔓延速度快、面积大、危害重。20世纪90年代前北疆棉区棉花黄萎病还是检疫对象。但以后每年以几倍,甚至几十倍的速度扩大。已覆盖整个棉区的多数县、团场。一般减产10%～30%,个别棉田几乎绝产,对北疆棉区的棉 Since the 1990s, the wilt disease and the rapid spread of Verticillium wilt in the cotton area of ​​northern Xinjiang have caused a large area and serious harm. Before the 90s of the 20th century, the northern part of northern Xinjiang cotton wilt disease or quarantine object. However, after several times each year, or even dozens of times the speed of expansion. Has covered the entire cotton area in most counties, the field. The general reduction of 10% to 30%, almost completely individual cotton fields, the northern cotton area of ​​cotton