Help Weed/Grass ID

[1grnlwn]

Found this today, not sure what it is. Turf is bluegrass about 4 yrs old. 1st year for treatments. Preemergence w/fert, weed and feed, and just applied grub w/fert. Turf has been cut from 1.5 to 2.5" I reset both mowers at 3" and gave the lecture. It appears to root at the nodes and was growing horizontally. Any Ideas?

Mark

[1grnlwn]

Another view.

[CHAN]

Looks like it is St. Augustine or either Centipeed. Great grass covers fast.
Later

[geogunn]

could it be bermuda? looks like it to me.

I hate that stuff! all of my customers have it to some degree and when it's about 3.5 inches tall it's hard to get a clean cut.

I know, I know! bermuda is supposed to be cut lower but I aint talking about bermuda lawns. these are fescue with snaggly, knarley, thatchey, bermuda in them!

GEO

[Rodney Anderson]

Zoysia Grass

[jeffyr]

1grnlwn,

I beleive that is Nimblewill. It is a similar species to Bermuda. I had this problem last year. It was growing in patches and each year the patches would get a little larger. In the spring the patches would green up 5 weeks later than the rest of the mix. The only answer was Roundup and reseed. I tried physically removing, but it came back just as strong. No selective herbacide will work since this is a member of the grass family, not a weed. It's just not a desireable grass to me.

Hope this helps.

Jeffyr