1.) Cut grass short - rake out all the filth underneath
2.) Prodiamine pre-emergent (thats the chemical name - many brands). Water that in.
3.) Put down a post emergent (theres lots, but for a start, try the Scotts yellow bag) - early in the morning when everything is wet with dew, so it will stick better. Give it a week or two to take effect, but wait a couple days after applying to mow.
4.) Kill anything that pops back up with (in my opinion) a liquid. What I use is a generic 2,4D with Dicamba - safe for grass - mixed with some surfactant and blue dye (so you can see where you sprayed it).
5.) Every 2 weeks go back and re-spray anything that didn't die
Then after all that, you can spot treat for whatever weeds are left. The surfactant will really help with the dollarweed, as its slippery and the stuff doesn't like to stay on it. Also keep in mind that only grows where its extra damp, so you may have an underlying issue there.
Then keep up with the pre-emergent and insect control, etc.
2.) Prodiamine pre-emergent (thats the chemical name - many brands). Water that in.
3.) Put down a post emergent (theres lots, but for a start, try the Scotts yellow bag) - early in the morning when everything is wet with dew, so it will stick better. Give it a week or two to take effect, but wait a couple days after applying to mow.
4.) Kill anything that pops back up with (in my opinion) a liquid. What I use is a generic 2,4D with Dicamba - safe for grass - mixed with some surfactant and blue dye (so you can see where you sprayed it).
5.) Every 2 weeks go back and re-spray anything that didn't die
Then after all that, you can spot treat for whatever weeds are left. The surfactant will really help with the dollarweed, as its slippery and the stuff doesn't like to stay on it. Also keep in mind that only grows where its extra damp, so you may have an underlying issue there.
Then keep up with the pre-emergent and insect control, etc.