re: Late winter pre-emergent application:

For most lawns I would do two spring pre em's. You can do one now and one 6 weeks from now. That you way you know you are covered. I would suggest aerating in the spring and not the summer. Aeration is stressful for the lawn and added stress of summer heat can mean a little longer to recover.

Cons would be crabgrass pre emerge. Atrazine isn't going to give you much residual on crab and goose

It’s been mostly in the 40s here in Nashville. Thinking I need to wait until 50-60? I’ve got a bag of Barricade left from applying in October.

Should I buy something else? Dimension or prodiamine? What order would I want to apply?

Nashville is probably still a little chilly for summer pre em. You are more in the late February/March zone.

Just to add to the good information already provided in this thread, I contacted Dr. Ron Strahan, weed control extension specialist, LSU AgCenter, this morning and he recommends applying lawn pre-emergents for the Baton Rouge area in the first week of February. And of course with pre-emergents it’s better to err on applying them a little to early than a little to late.

Gonna try to put mine down in the next week or so in Baton Rouge. Should I be putting down deminsion or diamine?

I have some weed-free zoneI plan on putting out on St. Aug. Should I put some atrizine as well or am I just doubling up and getting redundant.

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Gonna try to put mine down in the next week or so in Baton Rouge. Should I be putting down deminsion or diamine?

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Both are good, you may find Prodiamine cheaper, particularly if you use the spray version vs granular. If by chance you have/had a significant crabgrass problem Dimension does have post-emergent activity on young crabgrass seedlings if crabgrass seeds have begun to germinate (soil temp of 55) or you are delayed in your application.

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Late winter pre-emergent application: by coopsdad
I have some weed-free zoneI plan on putting out on St. Aug. Should I put some atrizine as well or am I just doubling up and getting redundant.

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I would use the Atrazine if you have it.

Adding some Prodiamine to your program would be great. Either add it in with this spraying or go back in a month with it

First time homeowner since July and located in South Alabama (Baldwin Co.). Lawn was pretty healthy when we took over, but major issues with lespedeza and some crabgrass in spots. I put down Prodamine in late-September. Seems to have down pretty good, and I’ve only noticed random plantain stuff in spots (which I’ve just pulled out). Been following this board (lurking) and I just picked up some Hi-Yield dimension for next application. A few questions:

1. When are you other South Alabama guys putting down this round of pre-emerge? Should I go ahead and do it now since it’s already on-hand and temps hitting 70+? Or wait another week and apply in Feb?

2. Should I go back to the Prodamine for round 3 in mid-March? Or go with something else?

3. Anything extra I can put down now to ensure that god awful lespedeza doesn’t show back up?! Or will these rounds of Prodamine and Dimension handle?