crabgrass control (Forsythia, seeding, spring, frost)

[ebbe]

I know crabgrass control is done in spring but I have a patch of it I want to treat now. Is there any product that would work on it now?

[Butterfly4u]

ebbe,
You are not describing how big it is, you could just dig it out by hand.
Or you could spray it with Round up and wait for it to die, then pull it out
by hand.
Or....you could just ignore it, let it die by itself in the fall, and next spring
buy the preemergent and cut down the crab grass growth in the first place.
Me, I wait til after we get a rain, or a cooler day (ha ha) and use a hose to loosen
the ground, and I dig it out.
If it's unbearably hot, and I feel lazy, I'll wait til next year.

[ChessieMom]

One patch? My goodness - just dig it up.

[TinaMcG]

If it's in the lawn, DO not use Roundup!! That will kill the grass. You can either dig it out or live with it, as crabgrass is an annual and will die at the first hard frost. In the meantime, keep it mowed to keep it from flowering and seeding.

[Parsec]

If you want it gone now, spray some Ortho Weed B Gon with crabgrass killer. Be sure to apply when temps are below 85 degrees or else your grass will burn out. Then next spring, you need to apply a pre-emergent before germination begins. A good visual sign to drop the pre-M is when you see the forsythias bloom. Be sure to follow up with a 2nd treatment about 6 weeks later, or as directed by the product label (there are at least a dozen different types of pre-emergent barriers you can use).