I'm about to replace a my girlfriend's lawn that's heavily infested with crabgrass.
What's the best approach to doing this? Some of the different suggestions I've received are as follows:
- Spray the lawn as it is (without digging it up first) with preemergent and then cover it with a tarp for several weeks before digging it up
- Remove the top layer of grass before spraying it
- Not spraying it at all
I guess I have two basic questions - do I really need to take off the top layer of dead grass before spraying it and do I really need to tarp it after spraying it? Any and all suggestions will be helpful.
Christopher
P.S. I live in Northern California if that makes a difference.