ORIGINAL ARTICLE
Survey of plant-parasitic nematodes associated with yams in Ogun and Osun states of Nigeria
1
Institute of Agricultural Research and Training, Obafemi Awolowo University,
P.M.B. 5029, Moor-Plantation, Ibadan–Nigeria
2
Federal University of Technology, Department of Soil, Crop and Pests, Akure, Ondo State
Corresponding author
Adegbite Ayodele Adesina
Institute of Agricultural Research and Training, Obafemi Awolowo University, P.M.B. 5029, Moor-Plantation, Ibadan–Nigeria
Institute of Agricultural Research and Training, Obafemi Awolowo University, P.M.B. 5029, Moor-Plantation, Ibadan–Nigeria
Journal of Plant Protection Research 2008;48(4):421-428
KEYWORDS
Yam (Dioscorea spp.)typesfrequencypopulation of plant-parasitic nematodesScutellonema sppMeloidogyne sppand Pratylenchus spp
TOPICS
ABSTRACT
A survey was conducted to determine the types, frequency and population of plant parasitic nematodes associated with the soils and roots of Yam (Dioscorea species) in all the Local Government Areas of Ogun and Osun States of Nigeria using random sampling soil and root and pie pan modification of Baerman funnel for plant parasitic nematode extraction. Ten and nine genera of plant parasitic nematodes were encountered both from the soils and root samples from the two States. Plant parasitic nematodes recovered included Scutellonema spp., Meloidogyne spp., Pratylenchus spp.,
Trichodorus spp., Helicotylenchus spp., Radopholus spp., Longidorus spp., Xiphinema spp., Rotylenchulus spp and Aphelenchoides species. Scutellonema spp., Meloidogyne spp., and Pratylenchus spp were most
widely distributed with frequency ratings of 70, 65 and 60% respectively in soil samples from Ogun State and in the root samples the three genera predominated with 60, 55 and 45% frequency ratings respectively. Meloidogyne spp., Scutellonema spp., and Pratylenchus spp were most widely distributed with frequency ratings of 65, 45 and 35% respectively in soil samples from Osun State and in the root samples the three genera predominated with 55, 35 and 35% frequency ratings respectively.
CONFLICT OF INTEREST
The authors have declared that no conflict of interests exist.
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