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EFFICACY
EVALUATION OF AZADIRACHTA INDICA, CALOTROPIS PROCERA,
DATURA STRAMONIUM AND TAGETES ERECTA AGAINST ROOT-KNOT NEMATODES
MELOIDOGYNE INCOGNITA
MUHAMMAD
ARSHAD HUSSAIN1, TARIQ MUKHTAR2* AND MUHAMMAD
ZAMEER KAYANI3
Abstract:
Different management
strategies are being adopted to control root-knot nematode,
Meloidogyne incognita, one of the most detrimental pests of
agricultural crops. Although application of nematicides is the most
commonly used practice, they cause pollution of ground water, so safe
and efficient alternatives are needed. The use of antagonistic plants
for the control of nematodes is a very attractive alternative. In the
present study, nematicidal efficacy of four medicinal plants viz.
Azadirachta indica A.Juss.,
Calotropis procera (Ait.) R.Br., Datura stramonium L., and
Tagetes erecta L., was ascertained for the control of M.
incognita. All leaf amendments at different dosages significantly
improved the plant growth characteristics of okra and reduced root-knot
infections compared with the untreated control. Azadirachta indica
and C. procera caused the maximum reductions in number of galls,
egg masses and reproduction factor (Rf) of the nematode.
1Plant
Pathology Section, Regional Agricultural Research Institute, Bahawalpur,
Pakistan.
2Department
of Plant Pathology, Pir Mehr Ali Shah Arid Agriculture University,
Rawalpindi, Pakistan.
3Green
Belt Project, Department of Agriculture, Rawalpindi, Pakistan.
*Corresponding
author e-mail:
drtmukhtar@uaar.edu.pk
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