Abstract
The result of the integration study between insect growth inhibitor regulator nomolt and two predators Metasyrphus corollae F. (Syrphidae : Diptera) and Coccinella undecimpunctata L. (Coccinellidae : Coleoptera) to control Aphis fabae Scop. show the significant interaction effect between density of each predator and nomolt to kill percentage of A. fabae at 20 , 40 nymph/plant indicated the significant interaction effect between density of each predator (one and two larvae) and a prey density 20 and 40 nymph/plant its about 100% then 77.70% when we use single larval from each predators in 40 nymph/plant. The best result registered when the killed percentage in Aphis fabae were 85.70% when controlled with nomolt only, comparasim with (53.58, 53.41)% when used biological factor.
