"Pavel314" wrote in
:


"Joe" wrote in message
news:1zsDg.3225$5M.1851@trnddc02...
I've got tree roots from a maple tree growing dangerously close to a
concrete slab and was hoping someone might have an effective way of
dealing with an issue like this short of swinging the axe.
Chainsaws and grinders in my experience haven't been too effective.
The link below shows the problem and thanks very much for any ideas.

http://home.nctv.com/ajns/roots.jpg


Go to a local metal shop and order some plate aluminum or stainless
steel. Make it 12" "deep" by around 3-4' long and manually insert
them right up against the concrete and even with the top of the dirt.
Roots can't get past solid metal.

Years ago I heard that plants can't stand copper. If that's true,
maybe some copper tubes strategically placed will turn the roots away
from the slab. Does anyone know if this really works?

Paul




Well, alge is a plant right? Here's one case where you kill a plant with
copper. The dark/black alge that grows on roof shingles in more humid
areas.

http://www.askthebuilder.com/printer...ingles .shtml