Re: CULT: Poast and Bindweed

Jeff and Carolyn Walters wrote:
> 
> Rick Tasco writes (31 Mar 97):
> 
> >
> > Poast will control Bermuda Grass, i'm not sure about bindweed as I don't
> > have that.  Trust me(please) you may spray right over the top of the
> > iris to control the bermuda.  I have used it for years to control my
> > bermuda.
> Rick,
> You don't know how lucky you are not to have bindweed (=wild morning
> glory)! (Of course, I don't have to construct a Maginot Line to keep
> gophers out of my iris beds, so I guess each of us has our own problems to
> deal with).
> 
> Poast is a grass-specific herbicide. That is why you can spray it over the
> top of other plants without ill effect. It has no effect on broad-leaved
> weeds like bindweed. Roundup is the only thing I have found to be effective
> with bindweed, but it has to be applied repeatedly at the highest
> recommended concentration and at the proper growth stage (late summer-early
> fall seems to work best here). And, of course, it has to be applied
> judiciously if you are spraying among the iris rows or beds to avoid drift
> getting on the iris. If you are in a really tight spot, you can apply the
> Roundup to the target plants with a paint brush and avoid spraying
> altogether.
> 
> Established iris are not killed by Roundup drift, but quite often the
> flowers the following  bloom season will be distorted, having the cupped
> form somewhat resembling a tulip and a thick waxy substance to the petals.
> 
> Jeff Walters in northern Utah (Zone 4)
> cwalters@cache.net
> "This is the Place" - snow forecast for this afternoon!
I have been reading all the articles on Poast and am wondering if I can
use this on my perennial borders that got weed infested last fall.  I
was not able to take care of the borders the way I should have.  I would
appreciate any information on how safe this would be.  I live in
Wisconsin in zone 4. Thank you, Dee Krueger
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