How can I kill them? They are taking over my lawn.
Baltimore County Maryland
This is a tough weed to control and you may want to aim in limiting spread. You also need to take a look at conditions that favor growth of this weed.. Look at our website for general chemical control in lawns
If you have not tested your soil in the past 3-4 years results will give pH, liming. and nutrient deficiencies.http://extension.umd.edu/hgic/soils/soil-testing