The soybean cyst nematode
"The soybean cyst nematode, Heterodero glycines Ichinohe, attacks soybean roots and is a serious threat to the crop in some areas. There are several different species of cyst nematodes, and many have specific host plants. They can cause crop losses of beets, potatoes, and other crops as well as of soybeans. This tiny parasitic roundworm gets its name from the fact that the female body--filled with eggs--is known as a cyst. Cysts remain in and infect soil for years. This persistence, rapid reproduction, and severe injuries to host plants' roots make these nematodes a serious agricultural threat."--First page.
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Provided for historical documentation only. Check Missouri Extension and Agricultural Experiment Station websites for current information.