Foxtail is a summer annual grass with wider blades and a lighter green color than bluegrass. It is also faster growing than bluegrass. Seedheads may form despite regular mowing.
Foxtail is much less prevalent when turfgrass has good density. You can increase density by using the good cultural practices detailed in CSU Fact Sheet 7.202. Resod or reseed bare spots.
A pre-emergent herbicide (benefin + trifluralin, dithiopyr, oxadiazon, pendimethalin or prodiamine) applied correctly and at the proper time should provide control. Do not use a pre-emergent herbicide on a newly-seeded or sodded lawn or when overseeding a lawn.
Post-emergent herbicides will kill foxtail seedlings: MSMA, DSMA, MAMA or fenoxaprop.
Photograph courtesy of Judy Sedbrook.
© CSU/Denver County Extension Master Gardener 2010
888 E. Iliff Avenue, Denver, CO 80210
Date last revised: 01/05/2010