Dig up with a knife
They sell weed and feed products. Most work well. If you have pets or children, read the instructions carefully as they can be harmful if not used correctly. Or dig them out as you see them.
At one point, two thirds of my lawn was taken over. I tried everything under the sun. I finally tried Spectracide Weed and Feed in the hose end sprayer. No mixing, no mess. Wet the "lawn" down with no rain scheduled for the next few days. Kills the weeds and feeds the lawn. A thicker lawn leaves no room for weeds.
Hi Dave. We use the Scott's 4-step program. My husband applies it on the lawn with a walk-behind spreader. It has worked very well and we are happy with results.