+ Site Statistics
+ Search Articles
+ PDF Full Text Service
How our service works
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ Translate
+ Recently Requested

First Report of Cytospora Canker Caused by Cytospora chrysosperma on White Poplar in Israel



First Report of Cytospora Canker Caused by Cytospora chrysosperma on White Poplar in Israel



Plant Disease 88(2): 220



A new disease, causing death of mature white poplar trees (Populus alba L.), was observed in Hulla Valley in northern Israel in the summer of 2002. The affected branches turned yellowish brown, and the inner bark turned black. The bark dried out and separated from the underlying wood. Later, copious, dark pycnidia developed on the dead bark. The pycnidia had a diameter of 650 µm (n = 50), ranging 600 to 800 µm. Under moist conditions, spore masses oozed out in long, reddish brown, coiled tendrils. The spores were hyaline, one-celled, and slightly curved, 1.1 × 5.5 µm (5.0 to 6.0 µm) (n = 100), and somewhat smaller than those reported by Schreiner (1). A herbarium specimen was deposited at the U.S. National Fungus Collections (BPI 843390). Isolations made from affected branches yielded colonies of Cytospora chrysosperma (Pers.:Fr.)Fr. with a whitish orange mycelium that turned dark green 11 days later. Its growth rate on potato dextrose agar at 25°C was 7.1 mm per day. Exposure to daylight induced pycnidial development after 3 to 4 weeks. Inoculation of eight 1-year-old seedlings of white poplar and willow (Salix acmophylla Boiss) proved the pathogenicity of several isolates of C. chrysosperma. The average canker length at 28 days after inoculation was 28.0 and 14.5 cm on white poplar and willow, respectively, indicating the higher susceptibility of P. alba. No cankers developed on the control seedlings. Reisolations from inoculated plants yielded C. chrysosperma. To our knowledge, this is the first report of Cytospora canker on white poplar in Israel. Reference: (1) E. J. Schreiner. Am. J. Bot.18:1, 1931.

Please choose payment method:






(PDF emailed within 1 workday: $29.90)

Accession: 066537937

Download citation: RISBibTeXText

PMID: 30812434


Related references

First report of Cytospora canker caused by Cytospora chrysosperma on white poplar in Israel. Plant Disease 88(2): 220, 2004

Poplar canker caused by Cytospora chrysosperma.. Sum. list, 80: 3/4, 120-4, 1956

Poplar canker caused by Cytospora chrysosperma. Studii si Cercetari de Biologie (Seria Botanica), Bucuresti. 22: 6, 517-22, 1970

Cytospora canker of poplars and willows Cytospora chrysosperma, fungal pathogens on hardwood trees, Wyoming. Bulletin Wyoming University Agricultural Extension Service: 982 (711R), 1982

The enlargement of cytospora chrysosperma canker of hybrid poplar and associated bark water relations. Phytopathology 71(5): 558, 1981

Tumor in a poplar d caused by cytospora chrysosperma. Studii si Cercetari de Biologie Seria Botanica 22(6): 517-522, 1970

Evaluation of fungicides for control of tree diseases III. Screening against the Poplar canker, Cytospora chrysosperma (Pers) Fr. under laboratory conditions. Information Report, Chemical Control Research Institute, Canada (CC-X-76): 14, 1975

Desiccation of hybrid black Poplar seedlings, caused by the fungi Dothichiza populea and Cytospora chrysosperma, and their control. Rev. Padurilor, 76: 11, 670-673, 1961

Cytospora chrysosperma injury to Poplar. Pubbl. Cent. Sper. Agric. For., Roma. 9: 2, 91-6, 1967

Evaluation of the pathogenicity of Cytospora chrysosperma in clones of poplar. Boletin de Sanidad Vegetal, Plagas 26(3): 415-423, 2000

A grey relatedness analysis of Cytospora chrysosperma with Melanophila decastigma of poplar. Forest Pest and Disease ( 4): 26-27, 1988

Relationship of environmental stress and Cytospora chrysosperma infection to spring dieback of poplar shoots. Forest Science 30(3): 645-651, 1984

Relationship of environmental stress and cytospora chrysosperma infection to spring dieback of poplar populus shoots. Forest Science 30(3): 645-656, 1984

Cytospora leucostoma is the most virulent and prevalent causal agent of Cytospora Canker on peaches on the Western Slope of Colorado. Phytopathology 106(12): 122-123, 2016

Effect of ring nematodes macroposthonia xenoplax and pin nematodes paratylenchus neoamblycephalus on the development of bacterial canker pseudomonas syringae and cytospora canker cytospora leucostoma in young french prune trees prunus cerasifera. Plant Disease 66(2): 114-116, 1982