While you could fertilize (12-24-12) around the thin spots, the summer
(heat) will start soon and extra watering would be required (due to
fertilizing). If the spots aren't too big, you could cut sod from one part
of the yard and replace the thin spots with plugs (depends on the grass type
you have). Or, just dig up the thin spots, loosen (aerate) the soil, add a
low numbered fertilizer, mix well, and allow the neighboring grass to fill
in. Or, just wait until the fall (cooler weather) to reseed the spots (dig
up the area, loosen the soil, and reseed).
"jbrianchamberlin" wrote in message
...

I've got a nice yard.. about 1 1/2 acres. It's pretty green but not
all of it's grass. I've been thinking about spreading some weed and
feed on it but we've had so much damn rain. I've also to some spots
that are a little thin and I wanted to re-seed that as well. Which
should I do first? Treat the existing grass and weeds and re-seed
later or vice versa?

--Chamberlin