removing existing lawn that has mostly crabgrass - Ask Extension
when I built my house 14 years ago, I put down sod and had a very nice lawn until 3 years ago. Crabgrass has taken hold on about a third of the area (...
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removing existing lawn that has mostly crabgrass #879742
Asked August 01, 2024, 1:11 PM EDT
when I built my house 14 years ago, I put down sod and had a very nice lawn until 3 years ago. Crabgrass has taken hold on about a third of the area (approximately 400 sq ft). For the past 3 years I have applied pre and post emergence products, with no success. I now want to remove the affected area with a sod cutter and then re-sod:
1) how deep should I cut the sod to accept the new sod?
2) there should be a good layer of top soil left after the sod is cut. Should a top dressing of some type (i.e.more top soil) be applied ?
3) should I apply a crabgrass prevention agent (either pre or post emergence agent) before putting down the new sod? and if so, how long should I wait to put down the new sod?
4) what is the latest time to start this process this year?
Anne Arundel CountyMaryland
Expert Response
Now or soon would be a good time to start to get control of any perennial grassy weeds you may have. (Crabgrass is not a perennial). Good bed preparation, installation, and close management after you lay the sod to keep it moist will be important for success.