Guy Padgett | 8/19/2011 11:39:03 PM
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Target Spot (Corynespora cassiicola)
Daniel V. Phillips
University of Georgia
Lesions on leaves are reddish-brown, circular, and variable in size up to 1/2 inch in diameter. Spots may also be found on petioles, stems, and pods. The larger lesions often show distinct concentric zones of dead tissue and may have a narrow, indistinct yellow-green halo. Lesions which form along veins may be narrow and elongated. Severe infections may cause premature leaf drop.
Most well adapted, high yielding, determinate cultivars have tolerance to target spot.
The LSU AgCenter and the LSU College of Agriculture