With different chemical treatments, POD and PPOD enzymatic activity of peach leaf had some relativity with peach tree gummosis disease.

不同药剂处理后,桃树叶片组织中过物(POD)、多酚(PPOD)与桃树流胶病的病存在一定的相关性。

Several non-infectious diseases including the leaf red spot, gummosis, herbicide in jury, typhoon damage and genetic albinism and an unidentified leaf crinkle disease are also described.

病原性病害包括红斑病、流胶病、除草剂药害、风害及遗传性白症等，以及病因不明之尾叶桉皱叶病亦在文内叙述之。