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Black shank (Phytophthora parasitica var. nicotianae) on Tobacco (Nicotiana tabacum)


15 Images
5368865
Tom Miller
University of Kentucky

Plants with Black shank wilt, turn yellow, and eventually die. Hybrid 403, a burley variety

5368866
Tom Miller
University of Kentucky

Plants with Black shank wilt, turn yellow, and eventally die. Hybrid 403, a burley variety

5368867
Tom Miller
University of Kentucky

Plants with Black shank wilt, turn yellow, and eventually die. Hybrid 403, a burley variety

5368868
Tom Miller
University of Kentucky

Characteristic disking of pith tissue of the lower stem (shank) of an infected tobacco plant. Hybrid 403, a burley variety

5368670
Paul Bachi
University of Kentucky Research and Education Center

Leaves with symptoms of the disease "Black shank" in this case called "Foliar Black shank. Dark variety VA 359

5368671
Paul Bachi
University of Kentucky Research and Education Center

Leaves with symptoms of the disease "Black shank" in this case called "Foliar Black shank. Dark variety VA 359

5368672
Paul Bachi
University of Kentucky Research and Education Center

Leaves with symptoms of the disease "Black shank" in this case called "Foliar Black shank. Dark variety VA 359

5368673
Paul Bachi
University of Kentucky Research and Education Center

Leaves with symptoms of the disease "Black shank" in this case called "Foliar Black shank. Dark variety VA 359

5368674
Paul Bachi
University of Kentucky Research and Education Center

Leaves with symptoms of the disease "Black shank" in this case called "Foliar Black shank". Dark variety VA 359

5368675
Paul Bachi
University of Kentucky Research and Education Center

Leaves with symptoms of the disease "Black shank" in this case called "Foliar Black shank". Dark tobacco.

5368676
Paul Bachi
University of Kentucky Research and Education Center

Leaves with symptoms of the disease "Black shank" in this case called "Foliar Black shank". Dark tobacco.

5368677
Paul Bachi
University of Kentucky Research and Education Center

Leaves with symptoms of the disease "Black shank" in this case called "Foliar Black shank". Dark tobacco.

5368703
Paul Bachi
University of Kentucky Research and Education Center

Asexual spore-producing bodies called "sporangia" of the fungus. When the sporangia is hollow-looking it has produced zoospores and they swam away in search of susceptible host tissue. KY-14XL8

5368704
Paul Bachi
University of Kentucky Research and Education Center

Asexual spore-producing bodies called "sporangia" of the fungus. When the sporangia is hollow-looking it has produced zoospores and they swam away in search of susceptible host tissue. KY-14XL8

5368705
Paul Bachi
University of Kentucky Research and Education Center

Asexual spore-producing bodies called "sporangia" of the fungus Phytophthora parasitica var. nicotianae. When the sporangia is hollow-looking it has produced zoospores and they swam away in search of susceptible host tissue.