Centipede Grass – Okay to Spray on Roundup?

Q: Since my centipede grass is dormant now, can I spray Roundup on the broadleaf weeds that are doing quite well?

A: Though your centipedegrass lawn may look brown, that doesn’t mean the individual plants are dormant. I checked my neighbor’s centipedegrass recently and, sure enough, I could find plenty of green growth below the dead stems that cover his lawn. If you apply glyphosate (Roundup, etc) to your “dormant” lawn now you will kill your centipedegrass. A better option is to spot spray with a broadleaf weedkiller labeled for use on centipedegrass, paying particular attention to the mixing rate. Due to the cold weather, you’ll begin to see weed control in two weeks.

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