A method is described for the rapid determination of surface residues of Diazinon, Guthion, and Imidan on whole fresh fruit. A simple wet ashing was sufficient to convert Diazinon and Guthion to the inorganic phosphate; however, the addition of hydrobromic acid to the ashing step was necessary for Imidan. Correlation of results from the proposed method with those of other methods was acceptable.The current use of broad-spectrum organophosphorus pesticides has led to problems of residue analysis.