A study survey was conducted in the vineyards crop production areas in central and Western North of Algeria to identify the nematode communities structure and their abundance during 2008 season. Soil samples were taken from different vineyards at depth of 90cm for each plant. Results indicated that sixteen genus of nematode were inventoried. They include Xiphinema sp., Longidorus sp., Ditylenchus sp., Aphelenchus sp., Pratylenchus sp., Aphelenchoides sp., Tylenchus sp., Helicotylenchus sp., Tylenchorhynchus sp, Psilenchus sp., Trophurus sp., Dorylaimus sp., Paratylenchus sp., Coslenchus sp., Heterodera sp and Pratylenchoides sp. These nematodes are classified according to their dietary pattern in three trophic groups; phytophagous, fungivorous and omnivorous. Their densities vary according to the various prospected stations.
