title: Vertical distribution of hop cyst nematode in hop gardens in central europe.
authors: Parasitological Institute, Slovak Academy of Sciences, Hlinkova 3, 040 01 Košice, Slovak Republic, E-mail:  renco@saske.sk.
authors: M
authors: M
authors: Renčo
authors: V
authors: V
authors: Cermák
authors: V
authors: V
authors: Gaar
keywords: Heterodera humuli; hop cyst nematode; the Czech Republic; the Slovak Republic; vertical distribution