How to Prevent and Control Crabgrass
New crabgrass appears from mid-spring to midsummer. The key to crabgrass control is making sure the seeds cannot germinate. You can prevent crabgrass seeds from germinating in a number of ways. The best defense against crabgrass is a healthy lawn. Unwanted grasses and weeds simply can’t get the necessary toehold to thrive in a robust stand of grass.