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Posted by on May 18, 2006, 4:17 pm
No wrote:
> trader4@optonline.net wrote:
> > No wrote:
> >> OK - This spring I put down some weed & feed stuff. Had a pre-emergent
> >> weed killer in the mix. Things look pretty good on the lawn (1.5 years
> >> old) I do have some thin spots. I plan on over seeding in the fall. I
> >> have a few areas right now that I would like to try and fill in. My weed
> >> & feed advertises "crabgrass control all summer". Some of my bad spots
> >> are from the dog (I think). Some are due to just having a new lawn from
> >> seed (weedy pasture blend! ;) . I have the weeds under fairly good
> >> control, the color is OK. I have quite a variety of grasses. When I
> >> over-seed I want to figure out what kind is doing best in my yard and
> >> plant only that (no more blends).
> >>
> >> Anyway - Is there a way to patch/re-seed a few areas on a lawn that had
> >> a spring pre-emergent applied?
> >>
> >> Yea, sod. I'm just talking about small spots here and there (under 1sq ft)
> >>
> >> Thanks
> >
> >
> > The pre-emergent is most effective for about 6 weeks after it's
> > applied. I would top dress the areas you want to reseed with 1/2 or
> > so of soil. Of course, depending on where you are located, now may
> > be a poor time to try to grow grass from seed. With rising temps, be
> > sure you will be able to give it enough water in the months ahead so it
> > will get established. If you just water it for a few weeks, then
> > ignore it, it will likely die.
> >
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> >
> So - Help me clarify your response. Will top-dressing keep me from
> waiting the 6 weeks? I wouldn't think so.
>
> Your saying wait the 6 weeks, top dress, plant and keep moist for
> several months - correct?
>
> Do you know if any seed that may have come in contact with a
> pre-emergent will ever grow or would I be out of luck. Dont ask.
>
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If you top dress with 1/2 inch of soil and then seed, you should be OK
to seed now. You need to keep it constantly moist for 2-3 weeks, until
it's germinated. Lightly dressing it with some peat moss will help or
you could get a bag of hydraulic mulch which is sold for that purpose.
After that, you can back of the watering gradually. You want to from
frequent light watering to longer, deeper watering over time. If it's
full sun and you don't have automatic sprinklers this can be a real
pain, because come July iit won't have very deep roots and if you don't
still water it every couple days, its gonna die.
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