Knowledgebase
noxious grass #874899
Asked June 26, 2024, 11:58 PM EDT
Denver County Colorado
Expert Response
From the photo it appears to be crabgrass, a annual grassy weed. Here is a link to various control methods:
https://extension.colostate.edu/topic-areas/yard-garden/control-of-annual-grassy-weeds-in-lawns-3-101/