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View Full Version : Best Time for CrabGrass Application .. ?


Lost Pine
03-11-2006, 04:03 PM
Well it's that time again in the Northeast....Application time. Over the years I've heard just about every story and tale about when it is best to apply Crabgrass prevention. I've heard everything from, When the ground temperature is 60 degrees to when the Azaleas bloom.

Now that I'm on this great website, I thought I'd ask everyone, What's your take on application...? ;)

rodfather
03-11-2006, 06:47 PM
Good rule of thumb is just as forsythia starts to bloom. Azaleas? Try weed n feed by then.

CAG
03-12-2006, 12:19 AM
i herd the same thing about the forsythia.

ArkansasLawns
03-12-2006, 09:18 AM
Before you can see that you should of already used it. Here in My area mid January to mid Feb.

Xterminator
03-12-2006, 09:32 AM
Mine also I put my first Pre-Emerge down the 15th of Jan is when i begin

ThreeWide
03-12-2006, 11:58 AM
Crabgrass germinates when soil temps average 55 degrees for a few days.

We just hit that range in North Georgia a few days ago.

You folks up North still have some time, but never too early to get it done.

FERT-TEK
03-16-2006, 10:50 PM
try this website and it will tell you what weeds you can start treating for both pre and post emergant.

G.M.Landscaping
03-16-2006, 11:22 PM
try this website and it will tell you what weeds you can start treating for both pre and post emergant.
Some good info there. Thanks

Agri-AFC
03-17-2006, 03:53 PM
Crabgrass germinates when soil temps average 55 degrees for a few days.

We just hit that range in North Georgia a few days ago.

You folks up North still have some time, but never too early to get it done.
Great advice Turf Unlimited. If you can Lost Pine, try to do split applications of 0.25% a.i. per acre.

Lost Pine
03-17-2006, 10:13 PM
Great advice Turf Unlimited. If you can Lost Pine, try to do split applications of 0.25% a.i. per acre.


YES ! Thanks ! Lesco has come out with a split application this year for the NJ area...One on the 25th of march and again June 1st. I think I'll give it a try !!! :dancing:

TMarch
03-18-2006, 02:26 AM
It depends on what pre emerge product your using. If your using Barricade I would go out 6 to 8 weeks before Diminsion. Personally I like diminsion and usually put it out around tax day here in middle missouri which is about the 55 degree soil temp mark. I Don't think going by the forsythia's is very accurete since they just bloomed 2 days ago.

work_it
03-18-2006, 02:57 AM
This is a site I've found useful----> http://www.greencastonline.com/SoilTempMaps.aspx

slscoldbrok
03-19-2006, 07:35 AM
you want to get the crabgrass preventer down before the ground tempature reaches 55 degrees or it is 55 degrees for a 24 hour period