Grassy Weed - Knowledgebase Question

Modesto, Ca
Avatar for dannydiep
Question by dannydiep
April 11, 2009
Hi, a grassy weed is growing on my lawn, faster than the grass, so it is noticeable. I sprayed a Spectracide prodcut but didn't help. I took a sample to a local nursery who thought it was crabgrass. It's starting to cover the rest of the yard....what can I do about it now that it's too late to put down preemergents? I researched other products (Acclaim, etc.)?

Answer from NGA
April 11, 2009
There are post emergence herbicides for crabgrass control (Bayer Advanced All in One Weed and Crabgrass Control, Spectracide Lawn Weed Killer) but if you have already used Spectracide, maybe the weed is not crabgrass but something else. I would dig some more out and get a second opinion. Not all herbicides are safe to use on all turfgrass types so a positive identification of the weed and of your turfgrass are really important. You can take a sample of both to your local cooperative extension office for help (3800 Cornucopia Way # A, Modesto). You'll find lots of information on control measures at the extension office, as well. Best wishes with your lawn.

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