Disappearance rate of malathion postharvest residues were chemically determined on strawberries, plums, tomatoes, and gooseberries which had been treated after harvest by dipping in a water emulsion or suspension of the pesticide. Dipping as an application method was tested with respect to the uniformity of residues and the effect of dip concentration, dipping time, and size of fruit on the amount of initial deposits. The disappearance rates of the residues on the stored fresh fruits were very high, in many cases as high as in situ on the corresponding plant parts. Malathion seems to be a promising insecticide for eradicating pests from stored fresh fruit and their surroundings if a short residual life is desired.