Pesticide compositions that contain, based on 100 pbw of such composition, (a) greater than or equal to about 0.006 parts by weight of a betaine surfactant, (b) greater than or equal to about 0.02 parts by weight of a humectant selected from polyhydric alcohols, polysaccharide humectants, and mixtures thereof, and (c) an effective amount of a pesticide, exhibit reduced foaming and high efficacy.