Abstract Background Pathogenicity of entomopathogenic fungi (EPF) depends mainly on their ability to produce efficient enzymes, which degrade insect’s integument and other cellular components. Lipases are the first enzymes secreted by these fungi, then proteases, phospholipases, chitinases. Results Twenty-six fungal strains, isolated from aphids, Aphis sp., Linnaeus (Homoptera, Aphididae), toma...