Knowledgebase
Coarse fescue grass #771587
Asked September 14, 2021, 4:09 PM EDT
Washtenaw County Michigan
Expert Response
Hello James
This does look like the weedy type of tall fescue. You can dig clumps out now and reseed.
This is the best way if you have just a few spots.
https://turf.purdue.edu/tall-fescue/
Here is more information from www.msuturfweeds.net
“As with most perennial grasses, it is very difficult to remove tall fescue by cultural means. Standard recommendations for increased fertility and mowing frequency will only serve to improve the quality of the tall fescue as well as the surrounding turf. Physical removal of patches is the most effective means technique for eliminating tall fescue.
Non-Selective - Due to its clump-type growth habit, it may be possible to remove tall fescue with spot applications of postemergence non-selective herbicides like glyphosate or with a grass herbicide like fluazifop. These products will kill whatever grass areas are treated so care should be taken to only treat the offending spot.
Selective Control - Chlorsulfuron and Sulfosulfuron are both labeled for the selective removal of tall fescue from Kentucky bluegrass. As is common for selective perennial grass herbicides, 2-3 applications may be necessary within one growing season. These products are not safe on perennial ryegrass. Consult the labels for the latest precautions and use recommendations.”
Disclaimer: Always read, understand, and follow the label directions. Mention or exclusion of specific products does not represent an endorsement or condemnation of any product by Michigan State University.
For reseeding steps:
https://www.canr.msu.edu/news/six_steps_to_fall_turfgrass_establishment
As to origin, it is very common in commercial turf, and may be carried on lawn equipment. It can also spread by seed.
Sent from my iPhone
On Sep 14, 2021, at 6:05 PM, Ask Extension <<personal data hidden>> wrote:
It is possible small, viable parts of this grass cling to lawn equipment, and when it is used on your lawn, it drops off and gets established. However, there is no way to prove this. The plants can also be carried by wildlife, or started by seeds clinging to birds, squirrels, chipmunks, etc as they move through your landscape.
