The present invention provides a pesticidal composition which comprises 4-bromo-2-(4-chlorophenyl)-1-ethoxymethyl-5-trifluromethylpyrrole-3-carbon itrile and at least one pyrethroidal compound as active ingredients, and an inert carrier, and an insecticidal/acaricidal method applying 4-bromo-2-(4-chlorophenyl)-1-ethoxymethyl-5-trifluoromethylpyrrole-3-carbo nitrile and at least one pyrethroidal compound to noxious insects, acarina, or the locus where noxious insects or acarina inhabit.

La presente invenzione fornisce una composizione antiparassitaria che contiene 4-bromo-2-(4-chlorophenyl)-1-ethoxymethyl-5-trifluromethylpyrrole-3-carbon itrile ed almeno un residuo pyrethroidal come ingredienti attivi e un elemento portante inerte e un metodo di insecticidal/acaricidal che applica il nitrile 4-bromo-2-(4-chlorophenyl)-1-ethoxymethyl-5-trifluoromethylpyrrole-3-carbo ed almeno un residuo pyrethroidal agli insetti nocivi, al acarina, o al luogo dove gli insetti o il acarina nocivi abitano.