Getting rid of Indian Strawberry #302599 #743286 - Ask Extension

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Getting rid of Indian Strawberry #302599 #743286

Asked April 08, 2021, 2:02 PM EDT

I have tried for years to get rid of Indian Strawberries. I have used roundup (AKA glyphosate) and killed everything. Re-sodded the yard…only for them to return. I have stumbled upon a solution…human urine. What is in human urine that will totally kill this demon but not harm St. August tine grass?

Montgomery County Texas

Expert Response

Thanks for the submission.  That is a good question.  Urine contains plant desirable nutrients (N-P-K) in a ready available form for plants. Urine can burn plants.  In fact, there are many cases where even dog urine burns the grass.  Typically if it is diluted, it will not burn the grass. Uric acids tend to be the major contributor.  Weeds thrive in areas of stress or poor fertilization allowing them to out-compete the desired plants.    Some weeds are more sensitive to certain chemicals.  Chickweed is sensitive to high nitrogen fertilizer. It will burn it.  
MP
Michael Potter Replied April 08, 2021, 2:34 PM EDT

Appreciate the prompt reply!

 

Attached is a pic of a rather undefined line where I have be peeing in the back yard.  St Augustine is doing fine and  the Potentilla indica is dead.  Potentilla indica is only in the top right of the pic where just two weeks ago it covered the entire area of where the pic was taken.

 

If you could figure out what it is that is in urine that kills this stuff we could be rich!

 

From: Ask Extension [mailto:askextension@eduworks.com]
Sent: Thursday, April 08, 2021 1:35 PM
To: Patrick F. Kennedy Jr.
Subject: Re: Getting rid of Indian Strawberry #302599 (#0013217)

 

PATRICK KENNEDY Replied April 08, 2021, 2:54 PM EDT
Must be more susceptible. Looks like control.. It would be interesting to see if it comes up next year.  MP
Michael Potter Replied April 08, 2021, 2:56 PM EDT

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