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Title: Tapholes drilled into frozen sugar maples close slowly
Author: Walters, Russell S.;
Source: Research Note NE-265. Broomall, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 1-2.
Publication Series: Research Note (RN)
Description: Tapholes drilled into frozen maple tissues remain open longer than tapholes drilled into trees that have not frozen. Taphole closure was not affected by the speed of the tapper drill bit.
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Walters, Russell S. 1978. Tapholes drilled into frozen sugar maples close slowly. Research Note NE-265. Broomall, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 1-2.
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