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Discussion in 'Pesticide & Herbicide Application' started by vencops, Sep 28, 2011.
How about in centipede grasses like St. Augustine? 24D is pretty rough on the Floritam.
No Three Way or straight 2,4-D in st augustine unless you are broadcasting with calibrated equipment to non drought stressed, well fertilized turf growing on good soil. Metsulfuron(Blade, Mansion, Manor) + Quicksilver + MSO will do a good job of killing broadleaf weeds and wild onion/garlic in st augustine without damage. I have successfully used a metsulfuron + Quicksilver tank mix on st augustine without damaging or discoloring the grass. Even then, spot spraying or spraying with equipment that introduces too much human error into the operation is risky. I use a boom for this, not a Chemlawn gun nor any device intending to "spot spray". Lawns that are not properly irrigated and fertilized will not be sprayed with this mix either.
whichever choice of herbicides mentioned above you choose to implement, consider having the onions or wild garlic cut as high as possible and then apply your product. If you cut the stem and open up the stalk, the product seems to siphon into the weed of the onion and garlic better. The use of MSO or 80/20 surfactant will aid in the sticking process as well as soften the waxy coating on these tough weeds.