昆明地区主要林木病害研究——五种林木病害的新寄主和新分布

本文作者在昆明地区林木病害研究工作中鉴定出五种病害:1.杨叶黑星病(Fusicladium tremulae Fr.),寄主云南白杨(Populus yunnanensis Dode);2.栎缩叶病Taphrina caerulescens (Desm.et Mont.)Tul.],寄主猪栎Lithocar pudealbata (Hook.f&Thoms)Rehd.];3.冬青漆斑病(Rhytisma curtisii B.et Rav.),寄主刺叶冬青(皱叶枸骨)(Ilex perryana S.Y.Hu)、大果冬青(Ilex macrocar pa Oliv.);4.云南朴树白粉病Pleochaeta shiraiana(P.Henn.)Kimbr.et Korf.],寄主云南朴树(Celtis yunnanensis Schneid);5.云南朴树霜霉病Pseudoperonospora celtidis(Waite)Wils.],寄主云南朴树(Celtis yunnanensis Schneid)。它们的寄主在我国尚未见报道。

STUDIES ON DISEASES OF PRINCIPAL FOREST TREES IN KUNMING DISTRICT New Hosts and Distribution of Five Forest Tree Diseases

Five foliage diseases of principal forest trees collected from the vicinity of Kunming are reported in this paper. They are: the black leaf spot of Populus yunnanensis caused by Fusicladium tremulae; the leaf blister on Lithocarpus dealbata caused by Taphrina caerulescens the tar spots of Ilex perryana and Ilex macrocarpa caused by Rhytisma curtisii; the powdery mildew of Celtis yunnanensis caused by Pleochaeta shiraiana and the downy mildew of Celtis yunnanensis caused by Pseudoperonos pora celtidis. The symptoms of these diseases, the morphological characteristics of pathogenic fungi, their distribution and damage are described. They are newly recorded in China. The species of host plants are reported as new hosts of their pathogenic fungi.