Detection of willow black canker on willow

 

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Publication Date

Fri, 23 Jun 2023, 08:02

Last Updated

June 23, 2023, 8:02 a.m.

Report Number

AUS-05/2

Country

Australia

Pest Id

Physalospora miyabeana - (PHYOMI)

Report Status

Final

Hosts

Willow trees

Pest Status (old values from ISPM 8 -1998 )

• Present: only in some areas

Pest Status (ISPM 8 - 2021)

• Present: not widely distributed and under official control

Geographical Distribution

Detection on willow trees in New South Wales (NSW) and the Australian Capital Territory (ACT)

Summary

In March 2006, black willow canker was detected on willow trees in the ACT and NSW. It has been decided that willow black canker is not likely to be a disease of significant economic impact. Relevant industries raised no concern about the decision to take no further action on this disease.

Danger

The fungus willow black canker, an exotic disease to Australia, was detected on willow trees in NSW and the ACT. It is not likely to be a disease of significant economic impact. The black willow fungus is not aggressive on willow and is conisdered to be a minor fruit rot disease. It is likely to be controlled by fungicide spray regimes already in use. An eradication program is not feasible or required.

Contact for info

Australian Chief Plant Protection Officer Australian Government Department of Agriculture, Fisheries & Forestry GPO Box 858 CANBERRA ACT 2601 Australia [email protected]

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