feeding and weed eradication on a lawn
How can I best feed and de-weed a new (Oct. 2013) bermuda grass lawn in Boerne, Tx. 78006
Kendall County Texas
What you are seeing at this time has been building up over a long-period due to poor lawn management practices.
If grubbing and pulling the weeds is working, here are some guidelines: Remember that there is no “Siler Bullet”.
-Bermuda grass should be grown in full sun and will not tolerate any shade.
-We presume that you have at least four inches of good soil?
-The lawn should be top-dressed with a half-inch of high grade finely screened compost and core aerated every third year or more if heavy traffic or drought has compacted the soil. This should be done in late March.
-You should deeply and efficiently supplement irrigate your lawn an inch every third week during the time frame of Mid-September through March 1 in lieu of significant rainfall. This is then adjusted to supplemental irrigation once every seven to days from March 1 through June 15; then an inch of supplemental irrigation every five to seven days during the peak summer months of June 15 through September 15.
-When the lawn is actively growing, you are mowing it every five to seven days with a well-maintained mower with sharp blades. When it is dormant or in summer dormant possibly once a month is sufficient. Do not bag your clippings unless you have weed and flower seeds in the mix. Only remove 1/3 of the lawns existing canopy at any given time. Bermuda typically like to stay between 2 – 2 ½ inches high.
-Fertilize in Mid-April with 5 to 7 pounds of 19-5-9 slow- release nitrogen per 1000 square feet. -Fertilize in early June with 10 pounds of Iron-plus per 1000 square feet.
-Fertilize in Mid-October with 5 pounds of 18-6-12 per 1000 square feet.
-Pre-emergant herbicide granules containing “Dimension” should be applied in early September (what you see at this time), again in late February and possibly early June if it is a wet spring.
David Rodriguez –Extension Horticulturist
Texas A&M AgriLife Extension Service Bexar County