From August 1979 through September 1981, two electric fences were used in Allegheny hardwood clearcuts in northern Pennsylvania to prevent browsing by white-tailed deer (Odocoileus virginianus). A five-strand vertical fence, 58 inches high, and a "figure four" three-strand fence, 43 inches high, were used. The fences were charged with a battery-powered energizer having a maximum output of 5,800 volts. Average time between battery charges was about six weeks. More than 33 percent of all the seedlings in the unfenced portion of one clearcut were browsed annually while inside the fence no browsing was detected. At least one deer penetration occurred at each fence, but the effect of browsing on forest regeneration inside the fences was negligible. The "figure four" fence was not as effective as the five-strand vertical fence in preventing deer browsing. Materials cost $0.14 to $0.18 per linear foot, compared with $0.45 per linear foot for conventional 8-foot-high woven wire fencing.
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