On Sat, 06 Sep 2003 13:43:56 GMT, Mooshie peas
wrote:

On Fri, 05 Sep 2003 08:56:14 +0200, Torsten Brinch
posted:

On Fri, 05 Sep 2003 06:15:08 GMT, Mooshie peas
wrote:

On 4 Sep 2003 13:27:27 GMT, Brian Sandle
posted:

The advertising suggests buying RR and glyphosate solves your
problem. But no, rotation &c is needed.

Could you quote this? snip

Monsanto ad, for Roundup Ultra in RR cotton:
"The only weed control you'll need"

http://www.weeds.iastate.edu/weednews/mon-ad.GIF

And if you read the text you see that this is claimed for second and
third flush weeds in RR cotton -- you won't need a cultivator.

Is this not the case, where this advertisement appears?

:-) As I understand the situation, it would be like this:
You have sprayed your RR cotton over the top with Roundup Ultra
early, as per label. But, later in the season, since Roundup has
poor residual effect you may get a second flush of weeds, which
you somehow need to tackle.

Now, that could be to cultivate in some way, and that could be to
use a post-directed spray as suggested by the ad. And for the latter,
Roundup Ultra could of course be an option, as -- um -- strongly
suggested by the ad.

However,

-- and that's why this ad richly deserves its place
in the agrochemical advertisment Hall of Shame --

perhaps not to be touted as such a fine option, considering the
agronomic benefits of cycling of different herbicide chemistries
when you can, considering the possibility that a spray with some
residual action could be used to avoid a third run, considering the
general principle of not relying on just one method of weed control.