While the temperatures are warmer and the warm-season grasses are breaking dormancy, resist the urge to fertilize too early.
Apply 1 pound of nitrogen per thousand square feet two or three weeks after the grass turns completely green.
A complete (3-1-2 or 4-1-2 ratio) fertilizer may be necessary only once or twice annually with remaining applications composed of nitrogen sources such as urea (45-0-0) and ammonium nitrate (33.5-0-0). If growth appears to be slow and the grass is yellowish green, apply a nitrogen source every four to six weeks at 1 pound per thousand square feet as needed.
If severe traffic damage, spring dead spot, or winter-kill to the bermudagrass is evident or suspected, use an herbicide containing oxadiazon. If the field is not severely worn or damaged, any preemergence herbicide is safe.