Identify weed/grass please

[jackj]

Need help identifying this grass/weed, which is in St. Agustine (one photo shows comparison with a St. Augustine blade). Very thin blade, crawling under/within St. Augustine stolons, and is reddish at base. Forgot to include seedhead, which is roundish ball, and at the juncture of a lowercase "t". In other words, the blade continues up and to the sides of the head.
Also, if Atrazine will kill it. Thanks.

[grenskpr]

Looks like bahaigrass only pinkish base grass I know Escort will take it out Do'nt know of St. Augustine tolorance though Read the label

John