Frosts and freezes have made it easier to spot the weeds in many home lawns. These are usually the more prevalent warm season crabgrass, Alexandergrass, sedges, spurges and similar types that don't like the cold. Probably you began noticing these straw-colored leaves about a month ago contrasting with the greener turf grasses.
Now that there is no doubt where you have weeds it's a good time to take control. Most are growing in patches where they have formed a carpet-like ground cover among the more desirable grass. Your best control is to remove the weeds and replant.
Luckily most weedy spots are small areas. Outline the spots with string or a hose and then use a shove and rake to remove the weeds. Some have surface roots that makes removal quite easy. With others you may have to remove some of the soil to eliminate perennial roots.
Good soil preparation is important to reestablishing turf. Use these tips to help with the new plantings.
- Till the soil deeply to bury weed seeds.
- Add compost or clean topsoil to bring the ground up to the original level.
- Replant with sod to completely cover the soil and prevent weeds.
- Water the new grass when the surface soil begins to dry until roots grow into the ground.
- Adjust sprinkler systems to ensure proper watering
- Control new weeds as needed to prevent reinfestation.