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Aiyelaagbe I.O.O.
Popoola A.R.
Afolami S.O.
Enikuomehin A.O.
Okeniyi M.O.
Orisajo S.B.
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Aiyelaagbe I.O.O.
Popoola A.R.
Afolami S.O.
Enikuomehin A.O.
Okeniyi M.O.
Orisajo S.B.
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World Research Journal of Agricultural Sciences

Distribution and effects of nematode management on plant parasitic nematodes in selected old and moribund cocoa farms in South Western Nigeria

Okeniyi M.O.1, Orisajo S.B1., Afolami S.O2., Enikuomehin A.O.,2 Popoola A.R2., Aiyelaagbe I.O. O.2

1 Cocoa Research Institute of Nigeria, P. M. B. 5244, Idi-Ayunre, Ibadan, Oyo State, Nigeria.

2 Federal University of Agriculture, P. M. B.  2044. Abeokuta, Ogun State, Nigeria

Accepted 23 September, 2015.

Citation: Okeniyi MO, Orisajo SB, Afolami SO, Enikuomehin AO, Popoola AR, Aiyelaagbe IOO (2016). Assessment of wheat crop coefficient using remote sensing techniques. World Research Journal of Agricultural Sciences 3(1): 039-047.

 

Copyright: © 2016 Okeniyi et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are cited.

Abstract

This study was carried out to study the distribution and evaluate effects of nematode management strategies. Initial sampling was conducted to determine the types, frequency and population of plant-parasitic nematodes associated with old cacao plantation. Ten genera of plant-parasitic nematodes were recovered in Ibadan which included Meloidogyne spp., Pratylenchus spp., Helicotylenchus spp., Paralongidorus spp., Eutylenchus spp., Scutellonema spp., Hemicyclophora spp., Xiphinema spp., Longidorus spp. and Anguillulina spp. The most widely distributed genus in Ibadan was Meloidogyne spp. (67%), followed by Anguillulina spp. (50%) and Paralongidorus spp. (33%). Thirteen genera of plant-parasitic nematodes were encountered in Owena, which included Meloidogyne spp., Pratylenchus spp., Helicotylenchus spp., Paralongidorus spp., Eutylenchus spp., Scutellonema spp., Hemicyclophora spp., Xiphinema spp., Longidorus spp., Anguillulina spp., Psilenchus spp., Tetylenchus spp. and Heterodera spp. Meloidognye spp. was the most predominant in Owena soil with a frequency rating of 75%, this was followed by Hemicyclophora spp.(33%) and Eutylenchus spp. (25%). To evaluate the effect of nematode management on nematode population there were seven treatments (CPH, CPH+ NL(80:20), CPH+NL(90:10), CPH+Carbofuran (C), CPH+NL(80:20)+C, CPH+(90:10)+C, Carbofuran only and control) with four applications. The application of organic amendment significantly (P=0.05) reduced the population of nematode when compared to carbofuran (as comparison) and the untreated (control).

Key words: cocoa pod husk, neem, nematodes, frequency, population.