The present work deals with the survey of main pests attacking citrus and olive in Egypt and Morocco. The results indicated that  fourteen and seven species are the principal key pests attacking citrus and olive trees , respectively .  Citrus pests associated with 18 parasitoids and 11 predators while olive pests associated with 11 parasitoids and 5 predators. The most important families of natural enemies were Aphelinidae,Encyrtidae,Eulophidae,Pteromalidae,Trichogrammatidae (parasitoids) and Anthocoridae, Coccinellidae, Chrysopidae, Tetranychidae (Predators). Keys for the pests and their natural enemies were provided.