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Susceptibility of regeneration in clearcuts to defoliation by gypsy moth

Year Published

1993

Publication

In: Gillespie, Andrew R.; Parker, George R.; Pope, Phillip E.; Rink, George: eds. Proceedings of the 9th Central Hardwood Forest Conference; Gen. Tech. Rep. NC-161. St. Paul, MN: U.S. Department of Agriculture, Forest Service, North Central Forest Experiment Station: 145-155

Abstract

In 1991 and 1992, we observed gypsy moth defoliation of oak regeneration in clearcuts of varying sizes and ages. We established plots in the surrounding mature forests to document ambient gypsy moth population levels and placed subplots within the clearcuts designed to examine the effect of location relative to the clearcut edge. We found that the levels of defoliation on oak regeneration in the clearcuts closely approximated that of the adjacent mature forests. Clearcut age seemed to have little effect on rate of defoliation, but larger clearcuts (> 25 acres) had somewhat lower average defoliation, particularly in the subplots near the center. We established a more intensive sample in 3 large clearcut (> 25 acres) and found that the larvae appeared to originate from the surrounding stands.

Citation

Hicks, Ray R., Jr.; Fultineer, Robert M.; Ware, Barbara S.; Gottschalk, Kurt W. 1993. Susceptibility of regeneration in clearcuts to defoliation by gypsy moth. In: Gillespie, Andrew R.; Parker, George R.; Pope, Phillip E.; Rink, George: eds. Proceedings of the 9th Central Hardwood Forest Conference; Gen. Tech. Rep. NC-161. St. Paul, MN: U.S. Department of Agriculture, Forest Service, North Central Forest Experiment Station: 145-155
Last updated on: August 11, 2006

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