Evaluation of plant materials as root-knot nematode (Meloidogyne incognita) suppressant in okro (Abelmuscous esculentus).
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Date
2021
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Agriculturae Conspectus Scientificus. University of Zagreb
Abstract
Plant parasitic nematodes are one of the most important pests on agricultural fields;
they cause serious damage to crops. Synthetic pesticides have been used lately to combat the
menace of nematodes. Pesticide residues have however been detected in fruits and vegetables
due to the residual effect of nematicides in the environment. To minimize the negative effect
of synthetic nematicides, it is important to search for alternative plant protection methods.
In this study, plant materials (Euphorbia heterophylla, Hyptis suaveolens, Eucalyptus officinalis,
Ocimum gratismum and Crotolaria juncea) were investigated as soil amendments for possible
reduction of root-knot nematode (Meloidogyne incognita) populations on okra (Abelmuscous
esculentus). Results revealed that the highest rate of amendment with E. officinalis reduced
significantly (p<0.05) the number of root galls, egg masses and juveniles, with a simultaneous
increase in okra yield. Thus soil amendments with E. officinalis could be an alternative to
synthetic nematicide in M. incognita management.
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Keywords
euphorbia heterophylla, hyptis suaveolens, eucalyptus officinalis, ocimum gratismum, crotolaria juncea
Citation
Fabiyi, O.A. (2021). Evaluation of plant materials as root-knot nematode (Meloidogyne incognita) suppressant in okro (Abelmuscous esculentus). Agriculturae Conspectus Scientificus. 86(1):51-56.