Here in the great South, Fescue removal in Bermuda and Zoysia lawns can be a challenge. Here in Atlanta, we have about 6 to 8 weeks left in the world of lawn care, by which we can freely and easily eliminate unwanted grasses from Bermuda and Zoysia lawns using non-selective herbicides like Roundup. Before the warm season turf comes out of dormancy this spring, we have the ability to spray fescue clumps, unwanted weeds, and other undesirables without fear of harming the Bermuda or Zoysia, so long as the lawns soil temperatures remain below about 65 degrees.
To check Georgia Soil temperatures, us this online tool, found through the University of Georgia at:
Procedure for Fescue removal in Bermuda and Zoysia lawns:
To apply Roundup or Glyphosate as the chemical name is known by, simply use a small 1 or 2 gallon hand pump sprayer, mix according to the labeled directions, and spray the unwanted grass or weeds to the point of runoff. Runoff means to the point that the blades of the grass or weed are wet enough that it is almost about to run off, but not quite.
Soil Temperature requirements for Fescue removal in Bermuda and Zoysia lawns:
Use caution when approaching the warmer spring time, and closer to time to aerate your lawn, as soil temperatures rise. Be sure to monitor soil temperatures past mid-February, especially near or south of the Atlanta lawn care market. Once the temperatures begin to get closer to 65, it may be best to either forgo applying a non-selective weed control, or call a professional lawn care company. As soil temperatures climb, the Bermuda and Zoysia grass in the lawn, especially the lawns here in Georgia, begin to come out of dormancy, preparing to green up for spring. Applying non-selectives at this time could cause some spring dead spot.
Last year in Dunwoody, Roswell and Alpharetta, I noticed lawns that had both been treated too late in the winter with non-selective herbicides, but also had serious compaction issues from high foot traffic (likely children playing constantly on the lawn). As you may or may not know, here in the Atlanta lawn market, we naturally have very compacted and clay based soils. As those soils get compacted throughout the year, if they are not aerated properly, using a true Deep Core Aeration process, the turf will begin to weaken and eventually grow very thin. As the Bermuda and Zoysia lawns get thin from lack of aeration, and wear, weeds creep in…