Compositions and methods for inhibiting the sprouting of potato tubers are provided. The compositions comprise combinations of i) &alpha；,&bgr；-unsaturated aliphatic aldehydes, and ketones, C3 to. C14 aliphatic aldehydes and ketones, and/or C3 to C7 saturated or unsaturated primary and secondary aliphatic alcohols； and 2) conventional sprout Inhibitors, The effect of the combinations is additive and/or synergistic, and less of the conventional inhibitor is required to achieve the same or improved levels of sprout inhibition.
