[Arid_gardener] Question from Home-Hort WWW page

[Dick Gross]

I once cleaned a raised bed full of nutsedge by removing the soil down about 
8 inches and sifting it through 1/4th inch galvanzed screen to remove all 
the nuts; or corms they may be called. You will have a blade pop up here and 
there for a year that you can pop out with a trowel but keep a quart spray 
bottle of Round-up handy to pop it when it does. Roundup is only effective 
on actively growing plants and works best for me if I give the undesirable 
stand a healthy shot of fertilizer first a few days ahead of time. I have 
added ammonium sulfate to Roundup with good effect

If you have ten acres of nutsedge, forget everything I've said about sifting 
and use Roundup but be sure the grass is vigorously growing for an effective 
kill..

I have never heard of sterilized soil but ask your nurseryman where to buy 
clean soil.

The chemical that kills the weeds can have a negative effect on other 
desirable vegetation, by the way if it gets into the plant vascular System.

Dick Gross, Master Gardener Volunteer
Maricopa County Cooperative Extension.

----- Original Message ----- 
From: <penjohnson at juno.com>
To: <arid_gardener at Ag.arizona.edu>
Sent: Monday, May 21, 2007 11:31 AM
Subject: [Arid_gardener] Question from Home-Hort WWW page


> Pen Johnson
> 85281
> penjohnson at juno.com
>
> We have a 12'X12' raised planter which we use for annuals.  The soil is 
> full of nutsedge.  What are our options to get rid of it?
> If we were to replace the soil is there a source for sterilized planter 
> soil in Maricopa county?
> Pen Johnson
>
>
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