Pre-Em and warm temps in the South

[khutch]

Going by soil temps (55 degrees+) it is really past time for Pre-emergent in the Atlanta area. Don't have a lot of accounts, but got to hit them next week for sure. Rather than my normal choice of Barricade, it seems Dimension is better for the post control. Is this wishful thinking on my part?
Does Dimension still work when you miss the window by a week or so?

[scweedman]

Yea deminsion is the only pre with some post control up to the first tiller.
I have been thinking the same thing about the temps.

[lawnspecialties]

I was thinking about that this morning as I was mowing in shorts and a short sleeve shirt. Henbit, clover, and some larger broadleafs are really popping up already.

I have to admit, I wish it would hit about 10 degrees for a couple days before the end of the month.:laugh:

[ThreeWide]

I would not be too concerned.

Even if the soil warms up enough to support crab germination for a few days, you can be almost certain that Winter will return soon. In fact, I see low temp forecasts going below freezing again a couple of days from now. Any crab that tries to germinate will be promptly killed by the cold. We had temps in the 70s in January for spells during the last couple of years and nothing resulted from it.

That said, I would expect to see a few more broadleafs than normal when you start doing preemergent in February. And if you don't have a good residual in the soil right now, Poa germination could certainly be an issue. Such is life when managing warm season turf in the South.

[Ric]

Been a warm winter

Today as I type this it is 83 out side and my Air conditioning is running. Here in Zone 10 Our Crab grass has not died from last year. Looks like there will be a lot of crab grass this year.

[lawnspecialties]

I'm going to Myrtle Beach next weekend so it'll probably snow 10 inches next Saturday.:laugh:

[timturf]

Take a close look at the rate on dimension label for POST control of crabgrass

Think of all the money that can be made in Ric area treating for crab and goose, bugs, must be a gold mine!
3 today is almost getting to hot
Maybe I should packup and move south...but that heat in the summer!

[scweedman]

Myrtle Beach is 30 min from me come on down the weather in the 70'S

[lawnspecialties]

My own yard is common bermuda and this fall I decided to go ahead and do annual ryegrass. Today the family and I were heading out to do some shopping and as I drove off, I looked down the side of my house toward the backyard and could see at least a dozen dandelion seed heads! What's up with that?!:confused:

[khutch]

I do read on the Dimension label post control for UP TO 4 weeks after germination. Just not sure how much faith I want to put in that.
With crabgrass at a 55 degree soil germination point, are most broadleafs in the same temp range?

[scweedman]

You could of had some seeds in your rye

[scweedman]

The temp is supposed to be in the 30's tonight so this will keep the
ground cold.

[wowmowwow]

my yard is thick fescue. its january, what should i put on it now? i have a few clover spots and i know the frost will do its thing, maybe. but for the most part i want to spend money and spread something. already put lots of lime and gyspsum. and how in the heck do the old farmers have spring green fescue yards now, in jan? waht are they doing? mine is yellow and green. i almost wreck off the road turning my neck.
thanks

[evergreenedmond]

put a quick release fertilizer on it & you should see a difference in a few days

[ThreeWide]

Ammonium Sulfate is what you need this time of year on the Fescue.

(Apparently this thread is in the process of being hijacked)

[timturf]

I do read on the Dimension label post control for UP TO 4 weeks after germination. Just not sure how much faith I want to put in that.
With crabgrass at a 55 degree soil germination point, are most broadleafs in the same temp range?

Back on subject...What is the rate to get 4 week post control on crabgrass? lbs of ai / acre...since their are more than one formulation of dimension!


crab will not germinate until the soil has remained 55 degees for more than 72 hours, and still needs moisture. When in gc business, I would apply pre emerge within several days of the soil reaching 72 degrees...always measured at sunrise, and at thr 3 INCH DEPTH

[Mattcurry]

Im still tank mixing atrazine in fl with 75 degree weather during the day, you should be fine just make sure your rates are correct.

[Ric]

Im still tank mixing atrazine in fl with 75 degree weather during the day, you should be fine just make sure your rates are correct.

Matt

The old UHS, Now UAP have an Atrazine 4L with no heat limitations. I have spot treated in 90 degree weather and had no ill effects. I do apply it at lower than normal rates in that weather condition.

[Mattcurry]

dont tell anyone but i also use atra sometimes in the heat of the fl weather, but like you said gotta know your mixture rates.

[dheel]

Ammonium Sulfate is what you need this time of year on the Fescue.

(Apparently this thread is in the process of being hijacked)
Turfunlimited,
I'm in central Nc and put out ammonium sulfate on my fescue in early March. The grass looks the best it probably has looked, deep green and thick. I probably put between one and two pounds of nitrogen per 1000sqft. Even though I don't have a soil test do you have any recommendation to keep it looking this nice. Last year I put out triple 17 in early spring and fall and it didn't look as good as this year. Thanks for any info.