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Tall Fescue herbicide #872469

Asked June 10, 2024, 4:38 PM EDT

I realize the first sentence explains this is only for Colorado but I’m desperate…please help. I have KBG lawn and live next to a pasture. I get coarse tall fescue all the time. What can I use to kill the fescue but not hurt the KBG?

Adams County Colorado

Expert Response

Hi Robert,

Unfortunately, there are no selective herbicides available that will kill the tall fescue and leave the bluegrass unharmed. Your options are:

1. Learn to live with it.
2. Try to dig out the clumps as you're able.
3. Spray out the clumps with a non-selective herbicide (like glyphosate or other); this will take 2-3 applications. Then reseed or resod the areas.
Alison O'Connor, PhD Replied June 10, 2024, 4:59 PM EDT

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