my yard is entirely dandelions. like it looks like i should be harvesting seed.
Me too - I am not seeing a good way to fight this. I tried weed killer and they essentially gave me the middle finger. Weed burner maybe but most of my yard would be black.
I'd get a fertilizer with broadleaf weed killer in it. To be fully effective, it's best to get out there after a rain or morning dew and get this on there sometime in May.
http://www.scotts.com/smg/goprod/turf-builder-weed-and-feed/prod11670004You may want to buy two bags and do another in July. The chemicals should target some of the seed that's dormant and will plan on germinating this fall.
Then, in late August, cut your lawn down pretty short, do some verticut aerating, and overseed the crap out of it and use some golf course starter. The biggest key to preventing dandelions, clover, and the rest of the broadleaf weeds is to choke them out with healthy grass.
We had a ton of yardwork done in our back yard last year, and we had Bobcats and other heavy equipment tearing up our side yards and back yard, so I've got some weed problems this Spring. One more good year of diligence with the fertilizer, weed control, overseeding, etc. should get me back to where I need to be come a year from now.