Steinhorst stubby-root nematode (Paratrichodorus pachydermus) is a nematode pest. It is a native of Europe.
Paratrichodorus pachydermus is polyphagus and occurs in a wide variety of habitats. Known hosts include potato, tobacco, grapevine, strawberry, sugar beet, onions and clover. It can alsovector Tobacco rattle virus serotype PRN.