Abstract: Potato storage trials were conducted in 2002 and 2003 in New Brunswick, Canada. Two potato cultivars, Russet Burbank and Dark Red Norland were used. Potato samples in mesh bags (9 kg each) untreated with sprout inhibitors were placed in wooden pallet boxes commonly used in potato storages. A wooden divider divided each box into two portions. Six samples of Russet Burbank were placed in one portion and 6 samples of Dark Red Norland were placed in the other portion. Two treatments (control and OxiDate 1:50) were replicated three times for each cultivar. Using a fogging system, treatments were applied daily for 2 weeks (8 h/day) and then once (8 h) per week for the duration of the experiment. Results indicated that OxiDate treatment helped reduce the level of early blight severity in storage by up to 10.4% over 16 weeks when compared to the untreated check.