To control tickseed powdery mildew with the spore suspension of the hyperparasite, the rate of hyperparasitism went up gradually from 67.01% in the early of September to 88.38% in the middle of September.

• 用重寄生菌分生孢子悬浮液喷雾接种防治大花金鸡菊白粉病 ；重寄生率由九月初的 6 7.；0 1%25逐渐上升为九月中的 88