目前对植物有害的线虫约有3000多种,而在我国发现的有40多种,主要有小秆线虫、根结线虫、孢囊线虫、根腐线虫等。其中,对作物危害最为严重的是根结线虫和孢囊线虫。主要受危害的作物有花生、大豆、水稻、小麦、马铃薯、烟草甜菜、柑桔、麻类等,一般发生就可以使这些作物减产10%—40%,严重时能减产70%—80%,甚至绝产,其危害程度可见 At present, about 3,000 species of nematodes are harmful to plants, while more than 40 species are found in China, including small stem nematodes, root knot nematodes, cyst nematodes and root rot nematodes. Among them, the most serious crops are root-knot nematode and cyst nematode. The main crops that are endangered are peanuts, soybeans, rice, wheat, potatoes, tobacco beets, citrus, and hemp. Generally, these crops can be cut by 10% -40% and severely by 70% -80% Even absolutely produced, the degree of harm can be seen