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Title: Leaf flush in black walnut at several midwest locations
Author: Bey, Calvin F.;
Source: In: Schreiner, Ernst J., ed. 19th Northeastern Forest Tree Improvement Conference. Upper Darby, PA: U.S. Forest Service, Northeastern Forest Experiment Station: 47-51
Publication Series: Scientific Journal (JRNL)
Description: Late spring frosts damage the tender new growth of black walnut trees, and the earliest trees to break dormancy are vulnerable for the longest period. Walnut trees growing in coves and low spots (frost pockets) are most vulnerable. If the terminal shoot is killed, one or more lateral buds at the base of the newly killed shoot commonly develop; generally, the result is a multiple-topped and/or crooked tree.
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Bey, Calvin F. 1972. Leaf flush in black walnut at several midwest locations. In: Schreiner, Ernst J., ed. 19th Northeastern Forest Tree Improvement Conference. Upper Darby, PA: U.S. Forest Service, Northeastern Forest Experiment Station: 47-51
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