大豆胞囊线虫病,又称大豆根线虫病、黄萎病,群众称之为“火龙秧子”,是大豆生产上一种毁灭性的病害。大豆胞囊线虫病是我国目前大豆上危害最大、发生最普遍的一种病害,辽宁中、西、北部发生较为严重,田间发病后植株矮小,瘦弱,成片发黄,一般减产10%~20%,重者可达30%~50%,有的甚 Soybean cyst nematode disease, also known as soybean root nematode disease, Verticillium wilt, the masses call it “fire dragon seedlings”, is a devastating disease in soybean production. Soybean cyst nematode disease is currently the most damaging and most common disease in soybean in China. The occurrence of the disease is more serious in the middle, the west and the north of Liaoning. The plants in the field are short, thin and yellow, with a yield reduction of 10% ~ 20 %, Heavy up to 30% ~ 50%, and some very