Response of Curlleaf Mountain Mahogany to Pruning Treatments in Northern Utah

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Abstract
Production of curlleaf mountain mahogany (C. ledifolius) within browsing height of big game on winter ranges was increased 500-900% when 90-99% of the canopy was pruned from mature trees. Since adventitious sprouting did not occur, numerous live twigs must be present in the browsing zone before treatment for any practical benefit to accrue. Pruning at < 90% canopy removal and girdling showed positive but smaller vegetative responses, while 100% canopy removal and application of pruning paint to wound surfaces in an attempt to eliminate sap flow had no effect on forage production available to big game.

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