Abstract: Naphthalene has been used by some beekeepers for controlling beeswax moth (Galleria mellonella). In this study, firstly, the quantity of naphthalene residues in the beeswax foundations purchased from four different beeswax foundation manufacturers (I, II, III, IV) were determined. Secondly, the wax foundations were attached to frames and kept in the windscreen cabinets for 60, 120 and 180 days. At the beginning, the quantities of naphthalene residues in the wax foundations were measured as 13.67±1.13, 12.95±2.39, 37.68±8.49 and 21.60±3.28 ppb for the manufacturers I, II, III and IV, respectively. After storing the wax foundations for 60 days, the quantities of naphthalene residues were measured as 5.86±0.08, 6.91±0.44, 10.35±2.25 and 8.77±1.29 ppb for the manufacturers I, II, III and IV, respectively (p<0.05). Finally, short term aeration of the bee wax foundations reduces the naphthalene level and keeping aeration has additional effects.