Quinclorac before an unexpected rain

Warm season grasses like Bermuda, Zoysia, St. Augustine, Centipede & Paspalum
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RYBLMC
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Quinclorac before an unexpected rain

Post by RYBLMC » Fri Aug 16, 2019 2:30 am

Question: Can I respray my crabgrass with Quinclorac?

Issue: I have sprayed my 4 month old Bermuda lawn twice so far with Quinclorac. First time, unexpected rain. Second time, unexpected rain. You have to love the unpredictable weather of Oklahoma.

Except, this second time, we acquired 2 inches of rain within about 10 minutes, the rain was roughly 5 hours post Quinclorac application. Since this was my second application, I have "entered" my yearly max of Quinclorac.

Any suggestions? Is a second application of Quinclorac or.. MSMA.. feasible? :|
Last edited by RYBLMC on Fri Aug 16, 2019 2:33 am, edited 1 time in total.
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Re: Quinclorac before an unexpected rain

Post by Tellycoleman » Fri Aug 16, 2019 4:03 am

Pictures please.

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RYBLMC
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Re: Quinclorac before an unexpected rain

Post by RYBLMC » Fri Aug 16, 2019 3:59 pm

3 days post spray, picture taken directly after first mow.

Image
Last edited by RYBLMC on Fri Aug 16, 2019 3:59 pm, edited 1 time in total.
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Re: Quinclorac before an unexpected rain

Post by RYBLMC » Fri Aug 16, 2019 6:44 pm

A few of the tips were burned in this general area.. overall the crabgrass appears to be unphased and healthy.

In other isolated areas.. the crabgrass took a good hit and is noticeably discolored and/or turning darker or lighter.
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Re: Quinclorac before an unexpected rain

Post by J_nick » Fri Aug 16, 2019 7:37 pm

When I sprayed a Quin/MSMA combo on my Reno the crab was smoked within a few days.

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Re: Quinclorac before an unexpected rain

Post by RYBLMC » Fri Aug 16, 2019 7:46 pm

J_nick wrote:
Fri Aug 16, 2019 7:37 pm
When I sprayed a Quin/MSMA combo on my Reno the crab was smoked within a few days.
Should I go over my yearly max and on the Quin and try out the Quin/MSMA combo?
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Re: Quinclorac before an unexpected rain

Post by J_nick » Fri Aug 16, 2019 8:56 pm

@RYBLMC I’ve only did one app of quin so I couldn’t advise going over the yearly max but MSMA will smoke crab by itself.

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Re: Quinclorac before an unexpected rain

Post by RYBLMC » Fri Aug 16, 2019 10:19 pm

J_nick wrote:
Fri Aug 16, 2019 8:56 pm
@RYBLMC I’ve only did one app of quin so I couldn’t advise going over the yearly max but MSMA will smoke crab by itself.
I’ll just go the MSMA route then since I’ve maxed out my quin for the year. How do you mix your MSMA? I read the label instructions and it says a surfactant helps the product, but is a surfactant really needed? Also, what’s your mix ratio per 1,000sqft?
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Re: Quinclorac before an unexpected rain

Post by J_nick » Sat Aug 17, 2019 10:24 am

I normally don’t add a surfactant. When it’s hot out I go with 2 sprays of 1oz per 1000 2 weeks apart. If it’s cooler you can up your rate so you don’t have to do 2 apps.

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Re: Quinclorac before an unexpected rain

Post by UFG8RMIKE » Sat Aug 17, 2019 12:47 pm

Same happened to me, rained well after the expected dry time but the 1-2 hr timeframe wasnt accurate. No effect, must have washed off.

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Re: Quinclorac before an unexpected rain

Post by w0lfe » Sat Aug 17, 2019 2:31 pm

Quinclorac smokes my 419 so I have to wait until cooler weather

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