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Jose from Miami, Fl writes

What can I use to control and kill Nutsedge and creeping signal grass on St Augustine grass?

Miami Fl area

Answer:

For nutsedge control it is best treated using something like Sedgehammer Herbicide which is specifically designed for it and is also for some other broadleaf weeds.  For signal grass is it best treated with a pre-emergent like Prodiamine 65 WDG but complete control is not always possible with this weed as it is a very difficult weed to control.  You could also spot treat with a glyphosate based product like GlyPhoSel Pro and then reseed/so the area.  The University of Florida has some information here about.

Answer last updated on: 03/15/2016

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SedgeHammer Plus Herbicide

SedgeHammer Plus Herbicide

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