Things You Will Need
Fertilizer approved for use with bermuda grass
Step 1First you must determine what stage the bermuda grass is in. This needs to be done just before spring. Do this by looking at the base of the grass and see if it has started to turn green in color. Also check to see if the base of the grass has any small green shoots.
Step 2After you have determined that the bermuda has started to grow, you will need to spray the lawn with Round-up or a similar product. This has to be done at night. This will need to be done two times with seven to ten days between applications. Mow the grass prior to spraying it. Be sure to take no more than a half of an inch off.
Step 3Now apply crabgrass pre-emergent to the entire lawn area. Make sure the emergent includes a fertilizer or add a fertilizer mix of 13-13-13. Follow the labels instructions.
Apply pre-emergent in the late sping to early summer. Once the lawn is completely green and the soils temperature is 75 degrees, you can treat outbreaks of weeds. Be sure to water once a week. Dethatch the lawn every 3 weeks.
The reason bermuda lawns become over-run with weeds has to do with the grass becoming thin. Because the grass is thin it is an offering ground for weed seeds to germinate in those spaces. The causes of thinning grass can be due to compacted soil, cold damage, a lack of fertilizer, or irregularities with the pH levels. Before the weed seeds germinate you can use a pre-emergent approved for use on bermuda grass.
With a little pre-planning and consistancy you can have weed free beautiful bermuda lawn.