How to Kill Crabgrass in Your Lawn NOW
Used to be the only way to rid your lawn of crabgrass was to prevent it from starting to grow in spring and then to dig out any stray crabgrass plants during summer before they produced thousands of seeds. Now Ortho has a very effective crabgrass killer that not only kills crabgrass after you have it growing in your lawn, but also takes out hundreds of other kinds of weeds without harming your good grass.
You can use Ortho Weed-B-Gon MAX plus Crabgrass Control on most any kind of lawn except St. Augustinegrass, Centipedegrass, Bentgrass or Bahia. If you have Bermuda you may get some temporary yellowing after spraying. It is best to spray on a day when temps are between 45 and 90 degrees with no rain or irrigation for at least an hour after spraying. You can plant grass seed 4 weeks after spraying.