Eastern filbert blight

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

Reliability: High

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Diagnostic Notes

Symptoms

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

Author: Liberato JR, Pscheidt JW, Johnson KB & Shivas RG

Created: 09/05/2006 01:36 AEST

Last Updated: 21/10/2011 09:31 AEST

Citation: Liberato JR, Pscheidt JW, Johnson KB & Shivas RG (2006) Eastern filbert blight (Anisogramma anomala ) Updated on 10/21/2011 9:31:02 AM Available online: PaDIL - http://www.padil.gov.au.

Image Use: Free for use under the Creative Commons Attribution 3.0 Australia License