Traditionally,the control of nematode infections in ruminants involves the combined use of anthelminthic drugs to eliminate the adult population of parasites within the animal.However,considerable anthelmintic routine(e.g.,Benzimidazole,Levamisole,and Ivermectin)has lost or reduced their efficacy because of the development of resistance of gastrointestinal nematodes.The use of nematophagous fungi for the biological control of infective larvae is a desired option of Alternative or complementary methods of prevetion measures for livestock parasitosis.