园林花卉真菌病害研究之五

Studies of the Fungous Diseases on Ornamental and Floral Plants V

本文报道15种园林花卉植物上15种真菌病害,其中国内新记录5种,云南、四川、新疆、省区新记录10种,国内新记录种有描述附病原图,标本存云南农业大学植物病理研究室真菌标本室(MHYAU).

This paper is a part of research project on ornamental and floral plant diseases in China and of a project supported by the National Natural Science Foundation of China.Fifteen fungous diseases on 15 species of garden trees and flowers collected from Kunming,Chengdu,Chongqing,Ta-cheng and other places were listed.Among them five diseases are reported for the first time in China and ten diseases are reported for the first time in Yunnan,Szechuan Province and Xinjiang Uygur Autonomous Re- gion.The morphological characteristics of 5 species are described and illustrated.Spec- imens are deposited in Mycological Herbarium of the Plant Pathological Laboratory of Yunnan Agricultural University(MHYAU),Kunming. Five of them are new records of known species in China,i.e.1.Cladosporium musae Mason causing spot on Heliconia pendula,from Jinghong Yunnan May.1990 occasional.2.Cladosporium lonicerae Saw.,causing round spot on Lonicera japonica,from Kunming.July.1990 occasional.3.Pestalotia gibberosa Sacc.causing scab on Cinnamoum gamphera,from Szechuan Sept 1985 common.4.Phyllosticta nerii West.causing leaf spot on Nerium indicum,from Chongqing Sept.1985 common.5.Septoria euonymi Rabenh.causing grey spot on Euonymus japonicus, from Chongqing Apr.1985 common.