I've read a lot on the subject and I'm still confused what to do in my situation. I am renting a house where I moved in October of last year. The yard was terrible and it was late too do much but I spot sprayed for broadleaf and aerated, limed, fertilized then over-seeded. I wasn't hoping for much but just a little better. It did get better, especially in some areas, but there are sections around my house that are/were pure crabgrass. I know that I should be applying pre-emergent in probably 3 weeks but what do I do when the crabgrass doesn't come up? It will be too late to get any seed down for spring and it will be a giant mud/dirt spot where I'm sure the weeds will come in. Is that really the only thing to do for an area which is 95% crab grass or do I have any other options?
Keep in mind I'm renting, so I'm not trying to spend too much money to improve my landlord's lawn, but just enough to make it enjoyable for the next couple years. I'm sure there are more details I should provide, but I can't think of what. Let me know what other info you need.
I've learned a ton from this community before even my first post. So thanks for that and thanks in advance!