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A Quantifiable Disease Severity Rating Scale for Frogeye Leaf Spot of Soybean

T. Price, M. Purvis, and H. Pruitt

February 2016


A quantifiable rating scale based on disease severity was developed for frogeye leaf spot (FLS) using image analysis software. The scale may be useful for estimating FLS severity in producer fields, which may aid in management decisions. Other applications of the scale include quantifying FLS severity in cultivar evaluations and foliar fungicide efficacy trials.


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