Thousand Cankers Disease of Walnut

Geosmithia morbida M.Kolařík, Freeland, C.Utley & Tisserat

Edibility

Edibility unknown — do not eat

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Lookalikes

No lookalikes are recorded for this species yet. That does not mean there are none. Many mushrooms look alike, so never rely on appearance alone.

Season

When this species has been recorded, by month, from open-licensed US and Canada observations. It shows when people report it, not a guarantee it is fruiting.

The highlighted bar is the current month.

View season data as a table

Recorded observations of Thousand Cankers Disease of Walnut by month
Month	Records
January	0
February	0
March	0
April	0
May	0
June	0
July	0
August	0
September	0
October	0
November	1
December	0

Where it is found

States and provinces with the most records. Check the foraging rules for the place you plan to visit.

Colorado 7 records · Foraging rules
California 4 records · Foraging rules
Oregon 3 records · Foraging rules
Arizona 1 records · Foraging rules
Utah 1 records · Foraging rules

All state and province foraging laws

About

Geosmithia morbida is a mitosporic ascomycete fungus belonging to the order Hypocreales and the family Bionectriaceae. This fungus is recognized as the causal agent of Thousand Cankers Disease (TCD), a significant threat to walnut trees. The disease derives its name from the multitude of coalescing cortical cankers that develop around the entrance holes created by its insect vector, the walnut twig beetle (Pityophthorus juglandis). The relationship between Geosmithia morbida and Pityophthorus juglandis is symbiotic, with the beetle carrying the fungal conidia on its body and introducing them to healthy walnut trees as it bores through the bark. While the greatest damage is observed on black walnuts (Juglans nigra).

From Wikipedia, CC BY-SA 4.0. Read the original article.

Recent finds

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More in the genus Geosmithia

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