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Arizona Weed ID

Posted by AJBB 9b (My Page) on
Thu, Mar 27, 14 at 15:14

This weed appears to be very common in the Phoenix area, but I've been having problems IDing it. It also seems to be pretty resistant to Roundup.


Follow-Up Postings:

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RE: Arizona Weed ID

nothing is resistant to RU if properly used ...

looks like a thistle to me ... but that is a guess ... as MI is not AZ ....

ken


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RE: Arizona Weed ID

Looks like Arabis missouriensis.

Here is a link that might be useful: Green Rockcress


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RE: Arizona Weed ID

Glyphosate resistance is well known in a number of species. It is a consequence of widespread use of the herbicide.


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RE: Arizona Weed ID

Try boiling hot water on it. Cook it's roots!

The manager at our HD told us to get the cheap Glyphosate that you mix yourself, and mix it stronger than the instructions. The pre-mix is weaker. They want you to buy more.

Good luck!

Suzi


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