EFFET DES EXTRAITS AQUEUX DE VEGETAUX SUR LES NEMATODES PHYTOPARASITES DU GENRE Meloidogyne spp.

Abstract

The ability to fight against Meloidogyne sp nematodes was tested using aqueous extracts of four spontaneous cultivated plants with virtues nematicidal. The results showed that Meloidogyne behave differently towards plant extracts. These data indicate that the inhibition rate of the outbreak increases when the solution concentration is high. Thus, among the plants tested, it is the root and leaf extracts of Punica granatum which showed a strong inhibition of the outbreak while the rates obtained were 91.7% and 90.3% after (08) days of exposure respectively. Concerning the influence of these plants on juvenile’s mortality, there is increase of mortality rate according to exposure and concentration time. It reached 71.3% and 70% respectively for root and leaf extracts of Lawsonia inermis and 69.6% for root extracts of Arachis hypogaea after 72 hours of exposure.