Frost crack or Southwest canker is a form of tree bark damage sometimes found on thin-barked trees, visible as vertical fractures on the southerly facing surfaces of tree trunks. Frost crack is distinct from sun scald and sun crack and physically differs from normal rough-bark characteristics as seen in mature oaks, pines, poplars and other tree species.
Frost crack or Southwest canker is a form of tree bark damage sometimes found on thin-barked trees, visible as vertical fractures on the southerly facing surfaces of tree trunks. Frost crack is distinct from sun scald and sun crack and physically differs from normal rough-bark characteristics as seen in mature oaks, pines, poplars and other tree species.
Source: Wikipedia "Frost crack" · CC BY-SA 4.0
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