常年种植甜菜或白菜的土地,易使这些作物得甜菜病。此病由甜菜包囊线虫 Heterodera schachtii schmidt 引起。同样线虫还可引起饲料甜菜和红甜菜紫菜头、红菜罹病。甜菜包囊线虫对所有温带的以甜菜业为主的国家是一个潜在的威胁。在此线虫立住脚的地方采纳适宜的轮作制度,以减少损失,至为重要。作物损失当很少线虫出现在土壤里时,只有少数小根被杀死,引起的损失不明显, Perennial beet or cabbage cultivation of land, easy to make these crops beet disease. The disease is caused by the beetle cyst nematode Heterodera schachtii schmidt. The same nematodes can also cause feed beets and red beets seaweed, red cabbage diseased. Sugar beet worm is a potential threat to all temperate beet industry-dominated countries. It is of paramount importance that a proper rotation system should be adopted where the nematodes stand in order to reduce losses. Crop losses When very few nematodes appear in the soil, only a few small roots are killed, causing no significant loss,