Survey of Parasitic Nematode Genera Associated with Grapevine Roots in Sweida Governorate, Syria

Abstract

Al-Halabi, S.M. and K. Al-Assas. 2021. Survey of Parasitic Nematode Genera Associated with Grapevine Roots in Sweida Governorate, Syria. Arab Journal of Plant Protection, 39(1): 14-21. The aim of this investigation was to survey the nematodes genera associated with the grapevine roots in Sweida Governorate, Syria. Samples were collected from vineyards of several main regions known for grape production (Massad, Al-Raha, Al-Kafer, Risas, Al-Quraya, Kanawat, and Ain Al-Arab in Dahr El-Jabal). The survey results confirmed the occurrence of the following plant-parasitic nematodes genera: Xiphinema, Meloidogyne, Pratylenchus, Paratylenchus, Helicotylenchus, Tylenchorynchus, Tylenchus and Ditylenchus in all investigated regions with high absolute frequency of 72.13, 73.77, 93.44, 96.72, 90.16, 93.44, 90.16 and 88.44%, respectively. The only exception was the genus Longidorus, which was limited with an absolute occurrence of 37.70%. Furthermore, this is the first record of these genera in Sweida Governorate. The results also revealed the presence of other genera of fungivore nematodes Aphelenchus and Aphelenchoides in all examined sites with 100% frequency. Keywords: Survey, classification, grapevine, nematodes, rhizosphere, Sweida, Syria