[Arid_gardener] Roundup

[Linda Drew]

there are a number of different mixtures marked now
as "Roundup". Check the label to see which one you
applied. If you followed label directions and applied it
to the grass, it should not have adversely affected the
elm tree.
http://www.monsanto.com/monsanto/content/products/productivity/roundup/back_history.pdf
http://science.howstuffworks.com/question357.htm

Don't know what might be happening with the elm. If you
can take some photos to your local Cooperative Extension
office that mighht help us figure out what is going on.

Linda Drew
Master Gardener volunteer

>From: jkellaw at aol.com
>To: <arid_gardener at Ag.arizona.edu>
>Subject: [Arid_gardener] Question from Home-Hort WWW page
>Date: Sun, 12 Aug 2007 10:17:09 -0700 (MST)
>
>Star
>85225
>jkellaw at aol.com
>
>My four-year-old Chinese elm was surrounded by aggressive volunteer grass 
>and the City of Chandler bossy-cows told me to cut and poison the grass or 
>else. I spritzed on some Roundup--the grass came back green, but part of 
>the elm is now brittle and has brown leaves. Some of it is still green. Is 
>this from the Roundup? Darn!
>
>
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