Effect of leaf extracts on the mortality of Meloidogyne incognita
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2007-02-08
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Studies were conducted to evaluate the nematicidal property of water extracts obtained from some commonly available weed/plant leaves against 2nd stage juveniles of Meloidogyne incognita. Of the sixteen plants tested 100 per cent mortality was observed with Moringa pterigosperma and Momordica charantia at 1:5 dilution after 24 hours whereas with Leucas aspera 100 per cent mortality was observed only after 48 hours in the same dilution. Hundred per cent mortaility of juveniles was observed with M. pterigosperma after 72 hours at 1:10 dilution also. Leaf extracts of certain plants are know to have nematicidal or nematostatic properties against several plant parasitic nematodes (Khanna, 1991; Hussaini, et al, 1996; Nandal and Bhatti, 1983; Krishnamurthy et ah, 1989; Saxena et ah, 1990). The present work is an attempt to study the nematicidal potential of extracts of some locally available weeds/plants against 2nd stage juveniles of the root-knot nematode, Meloidogyne incognita (Kofoid and White) Chitwood.
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Proceedings of the third international symposium of afro-asian society of nematologists 1998 p-222-225