用涂有 P·longisetca 或 P·theae 分生孢子的木栓穿孔器或断面刀口用创伤法在每个品种叶片伤口前接种,发现对这两种真菌的敏感性,品种之间的差异并不一致。用 P·longiseta接种,yaburita、Sayamamidori、Naturaldori 在叶片上形成大的病斑。而用 P·theae 接种,Behihomare、Ranayamidori、yaeho 及 MarinoharaWase 在叶片上形成的病斑小。 Inoculation with a trachoma perforator or cross-hatch coated with conidia of P. longisetca or P. theae using a traumatic approach prior to wounding of each leaf of the variety showed no sensitivity to the two fungi, and the differences among the varieties did not agree . Inoculation with P. longiseta, yaburita, Sayamamidori, Naturaldori formed large lesions on the leaves. However, inoculation with P. theae, lesion spots formed on leaves by Behihomare, Ranayamidori, yaeho and MarinoharaWase were small.