Emrys Davies wrote:
I have read that glyphosate is deactivated when it comes into contact
with the soil. Does that mean that you can spray weeds with glyphosate
one week and then safely plant shrubs in the same area of land a few
weeks later without there being any fears of the glyphosate which was
originally used?

Pretty much. The limiting step is waiting for the sprayed weeds to die.
The weedkiller loses its activity on hitting the ground (as do one or
two others as they adsorb strongly onto clay and are then more slowly
chemically degraded).

Ivy seedlings and a few other extremely waxy plants can survive some
glyphosate spray, but it isn't something to rely on. And grass is
exquisitiely sensitive to it so be careful not ot walk across a lawn
after using the stuff if you got any on your boots.

Regards,
Martin Brown
** Posted from http://www.teranews.com **