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Abstract
Peanuts (Arachis hypogaea) are a short-term industrial crop commonly grown on sandy soil in An Giang province with high nutritional content and are necessary for the vegetable oil industry. However, nematodes are one of the factors that limit the productivity and commercial value of this plant. Therefore, research topic on the composition of nematodes that damage peanuts in An Giang province was carried out to provide data on the diversity of plant parasitic nematode composition. The research method was carried out according to the technique of separating and filtering soil samples, groundnut roots and tubers. Besides, based on a number of formulas to assess the diversity of the community, species identification is based on the morphology and specialized taxonomy of each nematode genera. The collected results identified 20 species belonging to 15 genera, 11 nematode families in soil samples. Root samples recorded the presence of genera Ditylenchus, Helicotylenchus, Meloidogyne, Pratylenchus, Tylenchorhynchus and Rotylenchulus. In tubers of peanuts, only the Pratylenchus genus was recorded with a frequency of 60.00%. The frequency of occurrence of Mesocriconema was very common reaching 96.67% and the variety Pratylenchus was common in root and tuber samples. This result shows that the two genera Pratylenchus and Mesocriconema are subjects that need to be controlled and develop prevention and treatment measures.