Abstract            Volume:9  Issue-10  Year-2021         Original Research Articles

Online ISSN : 2347 - 3215 Issues : 12 per year Publisher : Excellent Publishers Email : editorijcret@gmail.com

In Sub-Saharan Africa, plant-parasitic nematodes have received little research attention, particularly in our country Ethiopia. Despite the fact that millions of people in Ethiopia and other countries use and consume daily tomato, little is known about the associated plant-parasitic nematodes. As a result, this survey was launched to investigate the occurrence and distribution of plant-parasitic nematodes in Southern Tigray zone. An exhaustive sampling of plant parasitic nematodes was undertaken during the 2018/19 growing season total of 180 composite soil sample were collected from two major tomato-growing districts in the study areas. The study revealed that, eight genera of plant parasitic nematodes: Pratylunchus, Radopholus, Tylenchorynchus, Hemicriconemoides, Rotylenchulus, Ditylenchus, Longidonus and Tylenchus were detected. The highest occurrence and distribution were recorded by the Lesion nematode (Pratylenchus spp.) and Burrowing nematode (Radopholus spp.) having a population density of 187 and 136, respectively. This diversity could be attributed to raya valley farmers' intercropping of tomato with solanaceous and other vegetables. These findings suggest that producers should carefully monitor and select their cropping pattern. Furthermore, research should focus on the impact of these plant parasitic nematode species on tomato crop performance in order to determine the economic threshold level and estimate a cost-benefit analysis of management practices.

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