Abstract: An efficacy trial of three procymidone-applying methods on controlling greenhouse tomato botrytis cinerea was conducted. The results indicated that the control efficacy with applying methods by thermal fog machine and the smoke agent were up to 76.32%, 78.36% respectively after the fourth applying, both were significantly better than that of mist sprayers, which was 71.90%. The operation efficiency of two methods was 6.5 times and 14 times higher than that of mist sprayers, and the costs were decreased by 53.94% and 67.73%, respectively.