There azre several brand name crabgrass killers on the market. All worked well for me, i.e. they killed the crabgrass. However, I suggest you try to do hand weeding.

The dead brown spot the sprays leave is unsightly, and with fescue the dead spot is not filled-in until you overseed. The spray is fine if you catch the crabgrass just as it is emerging. Then he visible damage is minimal.

This May I am trying a reapplication of preemerg like you suggest.

Capt Tom

Make sure you are really dealing with Crabgrass. It seems a little early for that, even in TN.

I'd suggest that you take a look at some pictures of unimproved Tall Fescue and see if that is what you have. Many folks mistake Kentucky 31 Tall Fescue for Crabgrass.

Ky31 is a very wide-bladed grass.

Trust me it's crabgrass, I know my nemisis. Tall wide leaf stalks all originating from the same single root and growing law to the ground outward. I dont know why people think crabgrass starts growing in the summer, here in tennessee it started 3 weeks ago.

Yeah, probably because of a milder than usual winter...like last year. I've seen some too around my place. Hell, it was warmer some days in Jan than it's been the last 3 days here. Weird!

I got some ortho weed b gon with crabgrass killer for use on lawns. I'll give it a try and let yall know what happens.

tennessee fescue,

I know it's been QUITE a few months, but did you ever find a reliable crabgrass killer? I'm in CT, the crabgrass is going strong, several patches are sending out seed stalks. I can't use RU or I'd have too much dead grass on hand. Is there really anything that can kill crabgrass and not the surrounding lawn? Btw, I applied pre-emergent......twice in fact.

MSMA, Monosodium methanearsonate. Lowes, Home Depot, etc.

I posted something on this a couple of days ago. It was the final results of a journal I kept on using Drive 75. It was pricey but did an awesome job

http://forums2.gardenweb.com/forums/load/lawns/msg0715092124677.html?1

Here is a link that might be useful: Link to other topic