"Martin Brown" wrote in message
...
In message , Rodger Whitlock
writes
On Sat, 2 Aug 2003 18:58:36 +0100, PA wrote:

I've a lot of couch grass to clear...


After reading a number of other replies, let me suggest an
alternative, organic approach. It depends on the fact that couch
grass likes to have its rhizomes just below the soil surface.

It is a reasonable trick. If you have the time and inclination.

Cover the infested area with black plastic sheeting and wait.

The black plastic method may have another effect: if the soil
underneath gets hot enough from the sun, it will just cook the
couch rhizomes.

There is one slight catch though. The overall environmental impact of
making all that black plastic sheet is greater than that of the tiny
amount of glyphosate needed to achieve the same effect.

Touche

[Franz Heymann]