Stiltgrass, crabgrass or bermuda grass?
Hello. This looks like bermudagrass, also called wiregrass due to its creeping habit. It is a perennial grass that goes dormant (turns brown) in the winter and will continue growing again when the weather warms up. Small areas can be pulled out by hand or using a hand-digging tool. For large infestations in a lawn, please refer to the recommendations provided on our website, https://extension.umd.edu/hgic/topics/bermudagrass.