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Nimblewill Turning White from Tenacity - August 2022

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Earlier this month, I was able to (finally and properly) identify that I have a creeping bentgrass problem in my backyard that includes a spreading (and concerning) amount of Nimblewill .  I decided to apply Tenacity as a post-emergent in an attempt to begin to control the grassy weed ahead of overseeding this Fall.  I mixed up a couple of gallons and applied it with a pump sprayer.   What does it look like after a week?  I'm seeing what I hoped to see:  some white emerging from the bentgrass.  See below for some photos showing the white tips.  Turns out, I have A TON Of creeping bentgrass back there that needs to go.  Look at all this white showing up: Everything I've read tells me that Nimblewill control isn't a one-shot deal.  It will take a few applications the first season and a multi-year treatment plan with herbicide control (Tenacity as a selective post-emergent).   But, so far...I'm happy.  And seeing signs of progress here.  My plan is to lower the deck on m