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Old 07-30-2013, 08:30 AM
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BeachysLawn BeachysLawn is offline
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A local supplier had a professor come in from VT this week to give a talk on landscape weed control. He said that in all their research and testing, PreM under the mulch always produced longer lasting weed control than putting it down on top.
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Old 08-01-2013, 09:17 AM
grassmasterswilson grassmasterswilson is online now
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What kind I'd residual are you guys getting? 3-4 months? I'm trying to work on a program as an upsell feature but think 2-3 apps of snapshot or freehand per year will be needed.

As an upsell I'm also going to need to show some proof of results or at lest sell them that I can suppress 80+% of weeds cause we can't prevent them all.
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Old 08-07-2013, 04:53 PM
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azsprinker azsprinker is offline
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I have always done both when tending to my lawn. That way there is some in direct contact with the soil as well as on the mulch to protect airborne seeds. Who originally taught you to place it on top? That is the person I would go ask. Maybe he has really good reason why he does it the way he does it. Remember there is never just one way of doing something.
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Old 08-19-2013, 05:41 PM
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JimLewis JimLewis is offline
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Well, I was curious who was right in this debate. So since SnapShot is the main pre-emergent we install, I contacted Dow AgroSciences, LLC (the manufacturer) and posed this question to them. The question being; whether it's best to install the Pre-M underneath a layer of new mulch or on top. Seems that either application is acceptable. But it seems that you do not need to do both. Here is the exact reply I got from "Jenny" with Dow;

Thank you for contacting Dow AgroSciences. It can be done both ways. We always tell folks if the mulch is not down yet, go ahead and apply SnapShot* first. If it is already down, just make sure you are watering it enough so that it gets incorporated into the soil.

I hope this helps!

Thank You,
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