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Old 04-22-2011, 01:34 PM
grassman10 grassman10 is offline
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My Dimension Dilemma

My SW Connecticut lawn was crushed by grubs and drought last year. I overseeded late last September/October and some blades came up before our nasty winter set in. Now, I am seeing some well-established new grass, but also some small new blades here and there. Can I put down my Lesco 19-0-6 w/ .10% Dimension or should I wait a little longer? I'm caught between damaging the young grass and being too late to have an effect on the crabgrass. Thanks.
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Old 04-22-2011, 02:04 PM
pieperlc pieperlc is offline
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Wait as long as possible and rely on dimension's post emergent qualities. Two weeks will go a long way with seedling establishment. You may have miss a few crab plants but deal with them later.

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Last edited by pieperlc; 04-22-2011 at 02:08 PM.
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Old 04-22-2011, 02:19 PM
grassman10 grassman10 is offline
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Thanks very much for the quick reply Pieper. Sounds like waiting until first week in May is the way to go. Hope the post emergent effect is strong enough at that point.
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Old 04-22-2011, 03:24 PM
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lilmarvin4064 lilmarvin4064 is offline
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You'll need to put that Dimension 0.10% down at 5.75 lbs/1000 minimum for post-emergent crabgrass control. That's a good bit of N at that rate.
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Old 04-22-2011, 06:33 PM
Hissing Cobra Hissing Cobra is offline
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I would use Anderson's 12-24-12 + Siduron RIGHT NOW and then 30 days from now, use the 19-0-6 Dimension. The Starter Fertilizer will work for approximately 30 days to allow your grass seed to grow thicker and the Siduron will work to control Crabgrass until the Dimension can be applied. Whatever you do, good luck!
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Old 04-22-2011, 11:46 PM
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RigglePLC RigglePLC is online now
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I agree with Pieper,
I think the new small blades are not enough to make any difference. Could be from rhizomes, not seed. Go with the Dimension as a pre-emergent. Wait a few weeks. You have about until the daily high air temps hit 80.
Or, some believe until the GDD(base 32) hit 500. Or some believe until the date of your last frost.
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Old 04-23-2011, 06:47 PM
bx24 bx24 is offline
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I would use the dim since it shuold be fine. I have been using Dim (spray) but i feel it is good on crabgrass but poor on weeds; unlike Pre-M.
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Old 05-03-2011, 09:51 AM
grassman10 grassman10 is offline
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Wanted to thank you all for your input -- much appreciated. The Siduron idea is interesting, but budget makes it tough.

Since I first posted, things have greened up and I even ran my first cut yesterday. The lawn is in fairly rough shape. 60-70% decent grass though not thick at all, many areas of clover, and lots of weeds.

Plus, there are one or two areas -- about 50-70 sf -- where the soil is poor and the bit of grass and even weeds that are there just look weak. I'm collecting a sample for testing. Should I avoid spreading the Dimension on this area and reseed, or just go with what's there and seed in the fall?

Thinking of putting down the Dimension today -- supposed to get rain tomorrow and then none for the next week. I'd like to wait a few days, but think 7+ days might be too long.
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