Use enough Roundup and you don't have to worry about the dang thing.

Thanks again for the excellent advice.. I did apply spot spraying in yard yesterday with 2-4d so we will see how I did.

Woodsloafer72, yep this excellent advice!!! LOL

24d will work great, You just will have to do it again, twice a year every year. Or you can concentrate on the health of your bluegrass. Weeds in your lawn tell you that something is wrong. Compaction, lack of calcium, mowing too short. Healthy bluegrass will choke out anything.

Thanks and true what you said. Compaction and others that don't take of dandelions are two of my issues. Nedd to aerate it in the spring.