[Finnigan]

We have a serious crabgrass problem this year.
Is there anything we can do right now to kill it and prevent it from germanation next year?

[michealb]

There are weed killers that will kill crabgrass and not your lawn just make sure it is safe for your type of grass. Put down a crabgrass preventor early next spring and you should be fine. All of this stuff is available at your local hardware store and a clerk should be able to point you to it.