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Re: chemical weed control



There has been discussion in the past about Plateau.  I would like to encourage
Terri to put out info on how the Plateau tests turn out.
I know of one dealer who sells a flower mix that is Plateau safe.  As mentioned
below, there is a limited number of species that are Plateau safe....
---------------------- Forwarded by Alan Rider on 03/02/99 06:50 AM
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 image moved   "Terri Rogers" <trogers @ hawkeye.cc.ia.us>        
 to file:      03/02/99 08:31 AM                                  
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Please respond to prairie@mallorn.com

To:   prairie @ mallorn.com
cc:    (bcc: Alan Rider)
Subject:  Re: chemical weed control




Plateau can be used for prairie grasses and forbs, but please consult the
label.  There are approximately only 30 forbs tolerant to Plateau.  Choose
your species carefully, and do test applications.  Prairie seed is too
expensive to take chances.  Local ecotype seed may react differently than
others.  All the more reason to be cautious.  However, Plateau has gotton
very good response.  We hope to do species specific trials this year.
Terri Rogers

Brett Roberts wrote:

> andrew james swanson wrote:
> >
> > In trying to establish some production plots of local seed of prairie
> > species does anyone have knowledge on chemicals that work well on
> > controlling weeds (mostly annual) with little or no damage to the
> > desired species?  This would be in a direct seed situation with a
> > monoculture or single species in their own separate plot.  Preplant,
> > post plant and or post emergence.  For plants such as :
> > pale purple coneflower
> > showy sunflower
> > oxeye false sunflower
> > rattlesnake master
> > liatris spp.
> > compass plant
> > butterfly milkweed
> > others...?
> > Has anyone tried planting roundhead bushclover in an area treated with
> > treflan?
>
> There is a new herbicide manufactured by American Cyanamid called
> "Plateau".  This product is cleared to be applied to many different
> forbs.
>
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