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Plant NameTypeDescription 
Leaf scorchHorsechestnutDiseaseLeaf scorch often occurs on a variety of trees (including horse-chestnut) in central and eastern Washington, and sometimes western Washington during the summer. It usually arises after periods of unfavorable weather or stress, such as drought, heat, and dry winds. Generally, irregular areas along leaf edges and between veins become bronzed. After a while, the tissue dries out and browns. Dead tissue progresses from the margin of the leaves to the veins as stress continues. From time to time, small angular brown specks appear between leaf veins. Twigs and branches may then die back.