Determination of plant parasitic nematodes in vegetable, wheat and grapevine fields in Diyarbakır province

In this study, plant parasitic species of Tylenchida, Dorylaimida and Aphelenchida (Nemata) in vegetable, wheat and grapevine fields in Diyarbakır province are examined. In 2005?2006, during the spring and summer months, when soil condition suitable, soil and plant root samples were taken, from these samples, nematodes were extracted, prepared, measured and identified. Identification, synonyms, possible variations, distribution and habitats of each species are given as a result of both laboratory studies and literature records, comperatively. A total of 23 species were determined of which species were 12 genus belonging to 10 subfamilies within 8 families of Tylenchoidea, Anguinoidea, Hoplolaimoidea, Dolichodoridea, Longidoridea and Aphelenchoidea, superfamilies of Tylenchina, Hoplolaimina, Dorylaimina and Aphelenchina suborders of Tylenchida, Aphelenchida and Dorylaimida orders. Among the species; Paratrophurus striatus and Pratylenchoides sheri are determined for the first time in the Nematoda fauna of Turkey. The most encountered species in this study are Merlinius brevidens; Helicotylenchus dihystera, Pratylenchoides alkani, Meloidogyne incognita, Pratylenchoides fallax; Xiphinema pachtaicum ve Aphelenchus avenae which are belonged to the orders of Tylenchida, Dorylaimida and Aphelenchida. Key Words: Plant parasitic nematodes, vegetable, wheat, grapevine, Diyarbakır.