Four insecticides were equally effective in controllingAcythrosiphon pisum(Harris) but differed significantly in their impact on selected entomophagous insects. Pirimicarb (2-Dimethylamino-5, 6-dimethylprimidin-4-yl dimethylcarbamate) was generally the least disruptive to populations ofHippodamia convergensGuérin-Méneville,Nabisspp. andOriusspp. and methomyl and Vydate® (5-methyl 1-(dimethlcarbomoyl)-N-[methylcarbamoyl) oxy[ thioformimidate) were the most disruptive.Chrysopaspp. were relatively tolerant to all the materials tested.