Help Killing Crab Grass!

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bigoak
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Help Killing Crab Grass!

Postby bigoak » Mon Sep 04, 2017 4:24 pm

What can I spray to kill crab grass in my lawn?
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Smoke68
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Re: Help Killing Crab Grass!

Postby Smoke68 » Mon Sep 04, 2017 6:42 pm

What species of grass is your lawn made up of? That's pretty important.

"Well we don't rent pigs and I figure it's better to say it right out front because a man that does like to rent pigs is... he's hard to stop" -Augustus McRae
bigoak
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Re: Help Killing Crab Grass!

Postby bigoak » Tue Sep 05, 2017 12:42 pm

Sorry, it's centipede grass.
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Smoke68
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Re: Help Killing Crab Grass!

Postby Smoke68 » Tue Sep 05, 2017 1:52 pm


"Well we don't rent pigs and I figure it's better to say it right out front because a man that does like to rent pigs is... he's hard to stop" -Augustus McRae
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cajun squealer
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Re: Help Killing Crab Grass!

Postby cajun squealer » Wed Sep 06, 2017 8:14 am

Atrazine or imazapyr.
Them that don't know him won't like him, and them that do sometimes won't know how to take him.
--Willie
johndavid78
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Re: Help Killing Crab Grass!

Postby johndavid78 » Thu Sep 07, 2017 12:46 pm

You have several options, but good luck finding them:

sulfentrazone + prodiamine mix (Pre-emerge and early post-emerge control - use lower rate for centipede)
DCPA (pre-emerge)
flazasulfuron (post-emerge)
dithiopyr (pre-emerge)
pendamethalin (pre-emerge)
bensulide (pre-emerge)

Atrazine can only provide limited control of crabgrass. It is meant to target broadleaf weeds.
bigdecoy
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Re: Help Killing Crab Grass!

Postby bigdecoy » Thu Sep 07, 2017 3:12 pm

I think I would check the label before using imazapyr on my lawn.
reservoirdawg
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Re: Help Killing Crab Grass!

Postby reservoirdawg » Thu Sep 07, 2017 3:30 pm

Warm winter + wet summer= lots of crabgrass. I wouldn't worry about it this late in the game. Preemerge next year.

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