Canker in Black Walnut Tree (IMAGE)

Purdue University

Canker in Black Walnut Tree

Caption

This is a canker on an eastern black walnut tree. The beetle that carries the fungus causing thousand cankers disease is visible in the canker's upper left corner.

Credit

(Colorado State University photo/Ned Tisserat)

Usage Restrictions

Credit: (Colorado State University photo/Ned Tisserat)

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