Heterodera vallicola sp.n. (Tylenchida: Heteroderidae) from elm trees, Ulmus japonica (Rehd.) Sarg. in the Primorsky territory, the Russian Far East, with rDNA identificaion of closely related species

Eroshenko A.S., Subbotin S.A., Kazachenko I.P.

Russian Journal of Nematology 2001; 9(1): 9-17