Leaf Blotch
Abiotic Abiotic disorder
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Category
Abiotic
Symptoms
Large, irregular, brown to tan blotches on leaves, often between major veins. Affected tissue dries and becomes papery. Blotches may coalesce to cover large portions of the leaf. Usually appears in mid to late summer during periods of environmental stress. Not caused by a pathogen; considered a physiological response.
Data Maturity Baseline Extension data. Expert review underway.