Fall is absolutely the best time for seeding for grass because native
weed seeds wont germinate in fall, but non-native grass will. you can
use weed killers on an established lawn, but not on ground you want to
seed, it really affects germination.
I suggest using a hoe to CUT the weeds off to the ground. Do not pull
as this will expose more weed seeds. then find some finely ground
compost, mulch or marsh hay and put a watering device on a timer water
it every day. the "mulch" will rot and break down and by mid Sept. it
will be ready to seed over the top of the new organic layer. right
before seeding, chop the weeds down again. next spring start early
with a pre-emergent to get rid of weed seeds. later you can use a
weed and feed, if needed, but only squirt the weeds, dont do the whole
lawn. Ingrid

On Wed, 15 Aug 2007 20:52:25 -0000, MVD w
So no one would hit the weeds with some kind of weed killer like weed-
be-gone or something like that? I understand what you're saying about
the grass eventually chocking out the weeds, but right now it looks
like the other way around. That's what worries me.
Another question: If I decide not to use the weed killer, could I cut
the grass and weeds really short in early Sept., overseed and then
spread a little top soil over the whole business? Would that process
work to get rid of some of the weeds.