How do you kill crab grass without killing your lawn?

Question

Crab grass is hard to get rid of, how do you do it?

Answer 1

You have to put down pre emergent weed control in the Spring.  this takes care of a lot of it before it germinates.  If you're doing it yourself use Scotts with Halts.  Any time after that use Ortho Weed B Gone Max.

Answer 2

use round up a weed killer medicine which takes about  fifteen days to show result. The crab grass would disappear...It has to be sprayed with

a  spray pump

Answer 3

Fertilizing and better mowing technique.

http://newsgroups.derkeiler.com/Archive/...

Answer 4

Ortho weed-B-Gon Max:  

it kills the weeds and broad leaf and crabgrass without killing the the rest of the grass.  I use it all the time.  I buy the concentrate and put it into the orthos dial cup and attach it to my garden hose and set the dial accordingly.

(((New formula)))) kills the toughest lawn weeds -((( even crabgrass!))))

http://www.acehardwareoutlet.com/(tu5zk2...

Or you can use this one

ORTHO" CRABGRASS KILLER 1PT

http://www.acehardwareoutlet.com/(tu5zk2...

It's been raining so much in Missouri it's hard to have a day for mowing....that's dry! I did manage to spray and kill most of the plantain.  

Edited there is also a Scotts granular for use in a spreader

In the spring, feed your lawn with a product containing a pre-emergent, such as Scotts® Turf Builder® with Halts Crabgrass Control. This will take care of grassy weeds.

Control the Weeds You Have

http://www.scotts.com/smg/learn/infoHowT...

Any garden center carries these products

Answer 5

cut it out, making sure you get the roots...or get some weed killing/lawn safe, weed killer (Ortho makes some good ones..any home store or Wally World.)

Answer 6

spray weed killer just on the center of the crab grass clump and/or dig it out, being sure to get the roots

Answer 7

growing a dense healthy lawn is the best prevention. so step up your maintenance and water, fertilize, and mow properly. hand pull individual plants before they set seed. appropriate, labeled weed and feed products are also effective.