spamtrap1888 wrote:
>
> Be careful what you want. Walnut trees hate competition, and secrete
> something called juglone that kills off other vegetation, although
> some plants are immune.

There's a whole group of nut trees that do that. Butternut and such.
The usual theory is to keep squirrels away from nut trees you plant a
ring of oaks then an empty space then the nut trees. I suggest dogs in
the empty space. It would take a very big place to pull that off.