Abstract: We prevented vegetable gray mold diseases for tomato, eggplant, color pepper, chili, lentil, and cucumber with Trichoderma LTR2 wettable powder (1500 g/hm2) as spray. This provided 77.96%, 64.45%, 71.43%, 70.24%,72.71%, and 75.41% protection and control effect. Pyrimethamil 40% SC of 480 g/hm2 dilution could give control effect of 71%~81%. Spray time of Trichoderma LTR2 wettable powder should be in the early period of the disease. The wettable powder can effectively prevent vegetable gray mold disease with spray frequency of 7 days, continuous employment of 2~3 times, and the dosage of 1 500 g/hm2.

Key words: wettable powder, efficacy, Trichoderma, gray mold