Phytohelminths Representatives of The Order Tylenchida (Filipjev, 1934) Thorne, 1949 on Fruit Crops of The Southern Regions of Uzbekistan

Abstract

The article provides data on the distribution of nematodes of representatives of the order Tylenchida (Filipjev, 1934) Thorne, 1949 on fruit crops in the southern (Surkhandarya and Kashkadarya) regions of Uzbekistan. As a result of studies in the root system and root soil of fruit trees (apple trees, common apricot, common peach, cherry, plum, pear, walnut), 37 species of nematodes belonging to 3 suborders, 5 superfamilies, 7 families, 10 subfamilies and 14 genera were registered. In the root system and root soil of fruit trees, phytohelminths of nonspecific pathogenic effect of the species Tylenchus davainei, Filenchus filiformis, Psilenchus hilarulus, Ditylenchus intermedius, D. myceliophagus dominated; Among the phytohelminths with a specific pathogenic effect, the dominant species were Tylenchorhynchus cylindricus, T.brassicae, Bitylenchus dubius, Merlinius brevidens, Rotylenchus robustus, Helicotylenchus dihystera, H. erythrinae, Pratylenchus pratensis, P.crenatus and Ditylenchus dipsaci.