In addition, taking white skin frailty as the tested material, the determination of the effect of the spore suspended liquid spraying on pathogenic rate of the 4 kinds of agent is conducted.

• 此外，以感病品种白皮脆为供试材料，利用孢子悬浮液喷雾接种方法对这4种病原菌进行致病力的测定。