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DIEBACK OR DROUGHT-LIKE SYMPTOMS (Occurs infrequently) Wilting or dieback of individual branches in the crown. Photo by Robert Blanchette |
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ORANGE SWELLINGS ON PETIOLES OR STEM (Occurs occassionally) Orange to rust colored swellings, causing distortion (curving) of the petiole or branches. Photo by Chad Behrendt |
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GENERAL DECLINE OR DIEBACK (Occurs occassionally) Branch die back and tree decline with loss of dominance and witches brooming near the base of the main trunk. Photo by Cornell University, Department of Plant Pathology |
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WITCHES BROOMS ON TRUNK (Occurs occasionally) Chlorotic leaves on witches brooms near the base of the trunk. Photo by Cornell University, Department of Plant Pathology |
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OTHER CAUSES Other symptoms caused by chemical, animal, or environmental factors. Photo by Chad J. Behrendt |