Inhibitory effects of Prangos ferulacea and Satureja hortensis on root-knot nematode, Meloidogyne javanica*

Root-knot nematodes (Meloidogyne spp.) are the most important plant pathogenic nematodes that reduce yield of economic plants worldwide. Infection by the root-knot nematodes cause gall formation on roots, prevent the normal growth and finally severe reduction in tomato production. In this experiment, effect of two plant species including Prangos ferulacea and Satureja hortensis against M. javanica, were investigated under greenhouse and laboratory conditions. The experiment was laid out in a randomized complete design with four replicates. Under laboratory conditions, combination treatment were used with 1: leaves of Prangos ferulacea and Satureja hortensis and 2: seven concentrations of leaves extract including 0.5, 1, 2, 3, 5, 7 and 9% w/v. Results showed that at 9% w/v, the highest percentage of mortality of second stage larvae (100%) was caused by both extract under. Under greenhouse conditions, five doses of leaf powder including 0.1%, 0.15%, 0.25%, 0.35% and 0.45% were applied. In greenhouse experiment, 0.45% of leaves powder of both plants showed more efficiency than the other doses.