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Verticillium wilt (Verticillium spp.) on Maple (Acer rubrum 'Autumn Blaze')


5 Images
5368681
Paul Bachi
University of Kentucky Research and Education Center

Lower portion of trunk with outer tissue stripped off to reveal discolored xylem tissue.

5368682
Paul Bachi
University of Kentucky Research and Education Center

Trunk portion near ground level with outer tissue cut away to reveal discolored xylem tissue.

5368683
Paul Bachi
University of Kentucky Research and Education Center

Culture of a species of the fungus Verticillium taken from discolored xylem tissue on Acid potato dextrose agar (APDA). Isolated from red maple (Acer rubrum).

5368684
Paul Bachi
University of Kentucky Research and Education Center

Cross and tangential sections of the lower trunk of one of the nursery trees showing characteristic olive green color of Verticillium-infected xylem.

5368685
Paul Bachi
University of Kentucky Research and Education Center

Trunk section with outer tissue cut away to reveal characteristic olive green color of Verticillium-infected xylem.