PJB-2011-449
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.
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