i have tried everything! now, i am ready to put up an electric fence
to keep them out. any advice would be greatly appreciated. how high
does an electric fence need to be? 4 feet? 6 feet? 8 feet? and
how far apart do the strands of wire need to be? 6"? 12"?

Wayne,

Have you tried a motion activated sprinkler? Deer are easily startled and
these pups have been shown to work very nicely in keeping the critters away
from prized vegetation. There are also some repellents out there (such as
Lion's urine) that have been said to work, although I have limited faith in
such repellents myself.

The topic of Deer problems has come up numerous times in this group over the
last few years -- usually around late spring to late autumn. You may want
to google the group and see some of the threads for the best information on
keeping 'em out.

James