Browse By

General Info

Angular leaf spot (Pseudomonas syringae p.v. tabaci) on Tobacco (Nicotiana tabacum)


4 Images
5368883
Paul Bachi
University of Kentucky Research and Education Center

On dark tobacco, narrowleaf madole shown, the spots have a little bit different look on dark tobacco because you do not usually see the yellow halo you will see on burley varieties, although a grouping of spots can cause an area of the leaf to turn yellow. Also interior portions of the spots look darker than those on burley.

5368884
Paul Bachi
University of Kentucky Research and Education Center

On dark tobacco, narrowleaf madole shown, the spots have a little bit different look on dark tobacco because you do not usually see the yellow halo you will see on burley varieties, although a grouping of spots can cause an area of the leaf to turn yellow. Also interior portions of the spots look darker than those on burley.

5368885
Paul Bachi
University of Kentucky Research and Education Center

Bacteria can be seen oozing from the infected leaf tissue. Narrowleaf Madole.

5368886
Paul Bachi
University of Kentucky Research and Education Center

Bacteria can be seen oozing from the infected leaf tissue. Narrowleaf Madole.