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The main aim of this study was to ascertain the diversity of plant parasitic nematodes at different locations of Kurram Agency, Pakistan. For this purpose, surveys were conducted and 150 samples of root and soil were collected from different locations of Kurram Agency. The detail morphological and taxonomical studies revealed a total of 26 species of plant parasitic nematodes belong to 17 genera, 13 families, 15 subfamilies and 3 orders while free-living soil nematodes revealed a total of 21 genera, 17 families and 8 orders. Overall percentage of plant parasitic and freeliving nematodes was 40% and 60%, respectively. Irantylenchus clavidorus Kheiri, 1972 was encountered with highest occurrence (40%) followed by Aphelenchus avenae Bastian, 1865 (27.5%) and Ditylenchus myceliophagus Goodey, 1958 (10%). Morphological and detailed taxonomical studies of nematodes were carried out and six new records of plant parasitic nematodes viz.,

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