Abstract:Mango(Mangifera indica L. cv. Zihua) inflorescences were treated with salicylic acid at 0, 50, 100, 150, 200 and 250 mg L-1. The results indicated that the disease index of mango fruitS caused by Colletotrichum gloesporioides was decreased significantly when the inflorescences were treated with salicylic acid loo mg L-1. salicylic acid had no inhibitory effect on the spore germination and the colony growth. It may be concluded that salicylic acid could induce mango fruits to have the effect resistant to Colletotrichum gloesporioides.