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Old 09-10-2021, 03:58 PM
 
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What is your soil temperature?

For those of us with cool season grasses it is critical of the timing every spring and fall to prevent crabgrass in the spring and to prevent cool season weeds especially annual bluegrass.

The calendar doesn't tell you much as to when to put down an application for a specific product, instead of the soil temperature is all that matters.

You put down your crabgrass prevent her in the spring too early and you're losing optimal time ahead likewise if you put it down too late you run the risk of crabgrass germinating and defeating the purpose of putting the product down to begin with.

Soil temperatures can be best tracked and following:

https://www.greencastonline.com/tools/soil-temperature

As of today, I still have a couple degrees to go to get to that magical 70° for cool season grasses in the fall before applying pre-emergent for fall weeds particularly annual bluegrass.
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Old 09-11-2021, 05:03 AM
 
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Old 09-12-2021, 03:36 PM
 
Location: Sandy Eggo's North County
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My soil temp currently
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What Is Your Soil Temperature?-8730feb6-7e66-4ba1-b3ed-23a299feee28.jpeg  
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Old 09-12-2021, 07:34 PM
 
Location: Lost in Montana *recalculating*...
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Whaddya baking potatoes under the dirt or something?!
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Old 09-13-2021, 11:50 AM
 
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Air or soil?



Quote:
Originally Posted by NORTY FLATZ View Post
My soil temp currently
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Old 09-13-2021, 12:09 PM
 
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It’s a hot one today.

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Old 09-13-2021, 12:10 PM
 
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At this rate crabgrass is going to be popping out again.
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Old 09-17-2021, 04:43 AM
 
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Still,way to warm to worry about fall preemeregent.

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Old 09-19-2021, 05:14 AM
 
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Looking for this to start dropping this week with the shift in temps to more seasonal like. Stay tuned.

Get that fall pre-emergent ready.

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Old 09-20-2021, 10:31 PM
 
Location: Sandy Eggo's North County
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Quote:
Originally Posted by movin2Reston View Post
Air or soil?
That was the surface temperature. Highest I've seen is 160+F.

What's interesting, is the soil might be 130F, and the concrete sidewalk 107F, but the black asphalt is "only" 122F. The black asphalt is cooler than the tan dirt. Sun shining on both areas. Breeze effect the same.

But yet, when walking on the dirt barefoot, it doesn't "feel" hot. But, walk on the asphalt, and it'll have me dancing like those Celtic dudes on PBS!

The meter seems fairly accurate (+/- 1%) and shows good repeatability.
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