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Leaf lesions of frogeye leaf spot are small, irregular to circular, and gray with reddish-brown borders. Most commonly occurring on the upper leaf surface, lesions start as dark, water-soaked spots that vary in size. As lesions age, the central area becomes gray to light brown with dark, red-brown margins.
For more information on frogeye leaf spot, see the Crop Protection Network full publication or summary article.
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