This is more commonly known as the soybean cyst nematode. It is a parasitic species that feeds on soybean specifically. It does most of its damage by infecting the roots of the soybean, which stuns the plants growth and production of leaves. The nervous system of the soybean cyst allows it to attach to the roots of the soybeans and enter the roots. Once inside brain impulses make the cyst swell up which burst the roots of the plants.