My Lawn and I Need Your Help!
Long time lurker here but I am in a situation where I need the expertise of the people in this forum.
A little background -
Bought a house that was dormant for over a year. It has fescue grass but was over run by weeds and such when we bought it in the winter. Through some heavy thatching and reseeding in the spring I was able to bring the lawn back to its former self. The 1.5 acre lawn is completely irrigated and I water it every day (only later learned that I need to do it every other day) For a month or so in June it was perfect. But then all of a sudden once it got hot in July it was immediately overrun by grabgrass. I admit that I did not put any crabgrass treatment down until it was a little too late. Even then I just used scotts turf builder and weed control. I feel like it only made the problem worse. Not to mention the weeds are so much more dense than the grass and made bagging the clippings nearly impossible, so I probably made it even worse by mowing it so much.
So here is where I need your help -
1. Please identify this type of crabgrass for me.
2. With it being almost the end of August, and being in Massachusetts, what are my options for killing this week? Should I just wait for the first frost?
3. Since it has taken over so much of the lawn (80%). I expect to have huge bare spots after the weed dies. What is the best plan of action for that? I plan on de-thatching again, and aerating the lawn, when should I do that?
4. Once the weeds are dead and the lawn is aerated, when is the best time to over seed and do I maintain a watering schedule at that point?
Any other information would be greatly appreciated and let me know if you need any clarification on anything.