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Message
Apply Quinclorac To Kill Centipede In Bermudagrass?
Posted on 9/29/23 at 1:00 pm
Posted on 9/29/23 at 1:00 pm
Paging ronk / Crawdad, among any others:
I think I've seen this mentioned before in a thread months ago. My backyard used to be 100% centipede, but now is a mix of Bermuda (common) due to the centipede dying back in various areas over the last year or so. Bermuda is starting to take over in spots but I would like to speed up the process so that maybe by next spring it's primarily Bermuda. I also plan to put down a pre-emergent for the first time to get the backyard in better shape.
Should I spray all the areas that have Centipede with Quinclorac? I assume it will be safe on the Bermuda. Do you recommend that I do this now ... or wait?
Any thoughts or suggestions are welcome.
Thanks all!
I think I've seen this mentioned before in a thread months ago. My backyard used to be 100% centipede, but now is a mix of Bermuda (common) due to the centipede dying back in various areas over the last year or so. Bermuda is starting to take over in spots but I would like to speed up the process so that maybe by next spring it's primarily Bermuda. I also plan to put down a pre-emergent for the first time to get the backyard in better shape.
Should I spray all the areas that have Centipede with Quinclorac? I assume it will be safe on the Bermuda. Do you recommend that I do this now ... or wait?
Any thoughts or suggestions are welcome.
Thanks all!

Posted on 9/29/23 at 2:38 pm to Ziggy
Yes, Quinclorac is safe on Bermuda but will harm centipede. Growth is slow for me right now, so if you still have a good bit of centipede, I’d probably hold off until next year. Don’t want to end up with a mud pit in the winter.
Absolutely use a pre-emergent either way. If you plan on seeding with more Bermuda in the spring, only apply the pre emergent this fall.
Absolutely use a pre-emergent either way. If you plan on seeding with more Bermuda in the spring, only apply the pre emergent this fall.
Posted on 9/29/23 at 2:39 pm to Ziggy
That will work but scolding your centipede will also hurt its feelings and it will die.
Posted on 9/29/23 at 2:49 pm to Ziggy
If you’re in South LA, I wouldn’t recommend to do it now.
It’s been hot and dry, without much growing season left. It won’t take much encouragement for the Bermuda to crowd out the centipede.
It’s been hot and dry, without much growing season left. It won’t take much encouragement for the Bermuda to crowd out the centipede.
Posted on 9/29/23 at 3:17 pm to Tifway419
quote:
Yes, Quinclorac is safe on Bermuda but will harm centipede. Growth is slow for me right now, so if you still have a good bit of centipede, I’d probably hold off until next year. Don’t want to end up with a mud pit in the winter.
Understood. If waiting until next year, when do you suggest I apply it?
quote:
Absolutely use a pre-emergent either way. If you plan on seeding with more Bermuda in the spring, only apply the pre emergent this fall.

Posted on 9/29/23 at 3:44 pm to Ziggy
I just sprayed quinclorac for the 3rd time in 6 weeks for torpedo. Hasn't harmed my Bermuda barely touched the torpedo. Mixed it kind of strong this time hopefully it does something. Also trying to get Bermuda to take over some centipede spots. Might spray those also and see what happens.
Posted on 9/30/23 at 10:31 am to Ziggy
quote:Let your Bermuda green up, cut it a few times low, throw down some high Nitrogen fert and reassess. Might not even need Quinclorac.
If waiting until next year, when do you suggest I apply it?
Bermuda loves Nitrogen, Centipede doesn’t. Bermuda spreads more when you cut it low, centipede hates being cut low.
Posted on 9/30/23 at 12:19 pm to Tifway419
Just want to add that doing a “pre-scalp” after your Bermuda greens up will probably severely damage any existing centipede. Then after a few weeks, if you do a full scalp then you’ll have nothing but Bermuda left.
Make sure to bag the clippings. If you cut it low (1 inch or so) twice a week you’ll have a thriving Bermuda lawn in no time.
I recommend something high in both nitrogen and potassium (the first and third numbers) when you pre-scalp and full scalp next spring.
Make sure to bag the clippings. If you cut it low (1 inch or so) twice a week you’ll have a thriving Bermuda lawn in no time.
I recommend something high in both nitrogen and potassium (the first and third numbers) when you pre-scalp and full scalp next spring.
Posted on 10/2/23 at 7:13 am to Tifway419
Thanks everyone for the responses. 

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