Evaluation of antagonistic activity of Trichoderma spp. against Meloidogyne incognita

Root-knot nematode Meloidogyne spp. is one of the most dangerous pests on vegetable crops in Algeria. Actually, research of alternative methods against these enemies is necessary. Culture filtrates of three species of filamentous fungi, Trichoderma harzianum, T. atroviride, T. longibrachiatum, tested against Meloidogyne incognita showed a nematicide effect on larval mortality of the second stage and also inhibited the potential of hatching nematode whose effectiveness varies with species, time of exposition and concentration. Finally, the use of some of these species of fungi can be an alternative method in the management of this bioagressor