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Posted by BluesCat on October 12, 2005, 9:14 am
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square foot back lawn with Roundup (65% weeds courtesy of my
homebuilder).
On October 2, I reseeded with a turf type tall fescue (Festuca L.) blend (Crossfire
II, Avenger and Cochise III) using a slit seeder. I applied the seed
at 10 lb.+/1K sq. ft. in a criss-cross pattern and I applied Scott's
Starter fertilizer at the recommended rate at the same time. I have
watered and continue to water with an automatic underground irrigation
system 3 times per day (about 8 minutes each watering). I first saw
evidence of germination on October 8. There has been 1 1/2 days of
rain so far and the temperature has been varied -- high 50's to mid
70's daytime and mid 40's to low 60's nights.
Now, germination appears to have started to take off to some extent as
there are seedlings up to 1" tall growing fairly uniformly over most of
the yard, but I have 3 or 4 fairly large areas and several smaller
patches that show no evidence of germination. One area is a rather
large (about 10' X 70')strip in the very back of my lawn. I can discern
no real difference in the amount of water, soil conditions, etc.
between the areas showing germination and those where there is no
germination -- the "bare" areas are directly adjacent to those showing
germination.
My questions are these:
What could have caused this patchy germination?
Should I reseed the bare areas now?
Should I give the bare areas more time to germinate? If so, how long?
Should I then reseed after waiting?
Any help is much appreciated!
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Posted by on October 12, 2005, 4:00 pm
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wouldn't be too worried yet, and certainly wouldn't seed again now.
It's possible that the areas that have not come up yet are cooler,
maybe less sun, or more wind causing cooling through water evaporation,
which would slow germination. Were those areas treated with any
herbicides other than Roundup? With Roundup, its recommended to wait a
minimum of a week before re-seeding, which I hope you did.
If you don't see growth in another week, then I'd take up a square foot
of soil and carefully start investigating to see if there is any sign
of germination. If there isn't then I would seed it again. You'd be
near the end of the seeding window at that point, but should still have
enough time for it to take.
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Posted by BluesCat on October 12, 2005, 8:19 pm
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before seeding. I'll continue to wait and watch.
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Posted by Grinch on October 18, 2005, 11:20 am
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> Thanks for your reply. I used only Roundup and waited at least a weed
> before seeding. I'll continue to wait and watch.
The farmers in my area spray roundup and seed on the same day. I don't
think you need to wait but I'd be interested in other opinions from better
educated folks than myself.
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