On 02/11/2012 12:36, Timothy Murphy wrote:
I put Roundup on a big patch of weeds about 1 week ago,
but they are not dead yet.
Can I pull up the weeds now without losing the effect?

If you wish. There is probably enough rain about and the plants are
barely growing any more that the Roundup you applied was wasted anyway.

--
Regards,
Martin Brown