"Scott Harper" wrote in message
erio.net...
Sorry about the double posting, just wanted to make sure the title caught
our
local arborists' attention, since this is as much a question about trees
as it
is sod...

I'm thinking about putting in some sod. I know "technically" the best way
to
do it is to get rid of all the other grass/weeds that is already there,
lightly till (or rake) up the soil, and put the sod down on that.

I know there are varying opinions on how to get rid of the existing
vegetation, but I would be inclined to spray it with round up to kill it
off
first, then rake it up. I am NOT too crazy about trying to pull it all up
while it is still alive. And tilling really isn't a great option because
of
the shallow soil depth on top of a rocky base.

The area under consideration happens to be under some live oaks. Part of
what

is growing there is literally hundreds of little oak saplings sprouting up
under and around the trees. My concern is that if I were to spray all of
them

with round up, that would make its way into the trees' root systems and
harm
them as well -- which I definitely don't want to do.

Would spraying round up under those trees harm them?

Would I have a chance in hades of the sod taking if I laid it on top of
the
existing vegetation?


scott

Takes 2 or 3 years with good rain conditions to washout the growth
controlling material that comes from cedar (juniper ashe). This is assuming
that there is no renewable cedar "leaves" or water-washed material coming
from some other location to under those trees.

If present, rake up and dig up what you can. Replace with decent topsoil or
verified suitable sandy loam 4" or deeper depth. Divert any upstream waters
that may wash such to your converted area.
Dave