Grass growing in groundcover

[lawnmasters05]

This is a long shot but I have an account with alot of grass growing in there ground cover located in flower-beds. Is there a post emergent that can be used that will kill out the grass and weeds but not hurt any of the ornamental or ground cover? I use a pre-emergent normally at my other accounts but just took this one on and trying not to tear up there ground cover. Any suggestions?

[PSUturf]

Look for product with active ingredient fluazifop such as Ortho Grass B Gon Garden Grass Killer. Safe to use on perennials, annuals, shrubs. Probably not safe on ornamental grasses.

[Premo Services]

Ornamec or fusialaide work well with landscape areas. The lables will tell if the chemical is safe for the ground cover.
http://www.cdms.net/manuf/manuf.asp

http://www.bluebooktor.com/Search/QuickSearch/index.asp

[TURFLORD]

Depends on the ground cover. If its vinca, your screwed. If it's procumens Ornamec will work fine but not for grasses I don't think.