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Eastern filbert blight

Scientific Name
Anisogramma anomala
Scientific Author
(Peck) E. Müll.
Ascomycetes, Valsaceae

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Diagnostic Images

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Diagnostic Images (12)
Diagnostic Notes



Anisogramma anomala colonizes systematically the phloem, cambium and the outer xylem of branches and produces cankers only after one year incubation period or more.  On American hazelnut (Corylus americana), this fungi causes an insignificant canker, measuring 1-10 cm in length. In contrast, on European hazelnut (Corylus avellana) the cankers can expand perennially at rates up to 1 m per year, girdling branches, causing canopy dieback and death of trees (Johnson et al. 1996). 



The fungus:


The developmental morphology of A. anomala is described by Gottwald & Cameron (1979). A brief summary about their fungal description is given below.

This species produces multiple perithecia within a compact Diatrype-like stroma and apiosporous ascospores. On C. avellana, cankers contain up to 20 stromata (in single or double rows pattern) at the first year and hundreds of stromata (in three to five rows) from the second year on. Mature stroma are black and measures 1.5—3 x 2—10 mm and 1—2 mm in height. Perithecia,

More Information
Specimen Contact
Dr Jose R. Liberato
Liberato JR, Pscheidt JW, Johnson KB & Shivas RG
09/05/2006 01:36 AEST
Last Updated
04/09/2014 02:05 AEST
Liberato JR, Pscheidt JW, Johnson KB & Shivas RG (2006) Eastern filbert blight (Anisogramma anomala ) Updated on 9/4/2014 2:05:12 AM Available online: PaDIL -
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Free for use under the Creative Commons Attribution 3.0 Australia License