Weeds that look like grass - very invasive

Asked July 20, 2020, 4:50 PM EDT

Hello, I need your assistance again. I have this weed which I think is Bermudagrass that has taken over the front lawn from I moved to this house over 13 years and I do not know how to get rid of it. It is now coming up in the flower bed. I am attaching a picture of it. There is also a mixture of crabgrass, goosegrass, orchardgrass in the back grass. I have tried to remove by hand and also regular weedkillers. How can I get rid of these to properly re-seed this fall? Thank again for your help. Angela

Prince George's County Maryland

1 Response

This is bermudagrass, a very difficult weed to manage even using an herbicide. In flower beds, all you can do is hand dig or spot treat using glyphosate. You will have to protect your desirable plants as this is non selective.

If this has taken over your front lawn more than 50%, you will have to make some decisions. You can live with it, renovate the lawn which is not an easy process or spot treat it with glyphosate. If you spot treat, you will have to protect any desirable grass and reseed.
Renovation should be initiated in mid-to-late August allowing time for reseeding in September into early October. Weeds must be actively growing in August when glyphosate is applied.

If you want to suppress the bermudagrass, the only option you have is a liquid, selective postemergent herbicide with the active ingredient Fenoxaprop. It can be used to suppress bermudagrass in lawns. It will not, however, remove it completely.

Here is our page on bermudagrass and how to manage in a lawn. https://extension.umd.edu/hgic/topics/bermudagrass
Here is our page on lawn renovation https://extension.umd.edu/hgic/topics/lawn-renovation-and-overseeding

Here is information on on crabgrass, goosegrass, and orchardgrass and management in the lawn
https://extension.umd.edu/hgic/topics/crabgrass
https://extension.umd.edu/hgic/topics/goosegrass
https://extension.umd.edu/hgic/topics/orchardgrass

See our page on tips for weed prevention and management https://extension.umd.edu/hgic/topics/tips-lawn-weed-prevention-and-management

Marian