In article ,
says...
Jeff Layman wrote:
There is little point in spraying glyphosate in cold weather. Wait until
the temp reaches at least 15° for a few days. It'll be far more effective.

Really? If so, thanks for warning! I sprayed a parking area, filling
up with grass and weeds, with sodium chlorate about a month ago (pretty
cold at that time) and it has worked well. Is Glyphosate different?

Eddy.


Yes, it has to be moved by the plant around its internal system, it's
only when it reaches the roots that it has an effect. So to be effective
the plant must be active not dormant otherwise it will shrug it off.
--
Charlie Pridham, Gardening in Cornwall
www.roselandhouse.co.uk
Holders of national collections of Clematis viticella cultivars and
Lapageria rosea