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Imprelis is bad for Spruce and other trees

Discussion in 'Pesticide & Herbicide Application' started by Airborne Toxic, Jun 1, 2011.

  1. Grassworks Inc.

    Grassworks Inc. LawnSite Member
    Messages: 95

    Me too. I bet the local Wilmington DE paper has a big expose on it. DuPont can't fart around here without it making the news. They had a huge series of articles back when the Benlate problem was going on.
  2. turf hokie

    turf hokie LawnSite Silver Member
    Messages: 2,751

    Gary, just curious, are those weeds growing in the spruce? in those pics that you think have chemical damage from root uptake...how is it the you have a 2 foot weed (last pic) in the middle of it with no damage?

    something does not seem right here...
  3. americanlawn

    americanlawn LawnSite Fanatic
    from midwest
    Messages: 5,946

    Holy Cow. No wonder I chose to let others try Imprellis before we bought it. The trees in the pics look like "sick puppies". Drooping branches is not a good sign whatsoever, cuz this usually means the entire plant (tree) is affected. A few brown needles are normal and expected (lower branches & maybe on the north side), but not at the top of the tree.

    BTW, all trees in the pine family have a whirl vascular system, so damaging the branches on one side of the tree does not coincide with the root system on the same side. Same with soils - all trees in the pine family (firs, spruces, pines) prefer a well-drained soil -- this could be a contributing factor. They also prefer full sun, which the trees in the pics have >> Nuther reason why I suspect "Imprellis at work".

    The "drip line" label is totally idiotic IMO >> Most established trees (conifer & deciduous) have most of their "feeder roots" (active roots) outside & well beyond the "drip line". Law suites coming down the pike? I'd bet money on it if the above pics & poster's information are accurate. Even the new candles/needles were affected -- this pretty much closes the deal. BTW, nice pics.

    my 2 cents
  4. phasthound

    phasthound LawnSite Fanatic
    Messages: 5,056


    You are absolutely correct about feeder roots extending far beyond the drip line with mature trees.

    I'm still waiting to hear back from Rutgers as to what they know.
  5. garydale

    garydale LawnSite Senior Member
    Messages: 813

    Turf Hokie,
    That weed is "Poke" about 4 ft. tall.
    Birds drop it into the beds from seed. Manual removal only remedy.
    I would site it's lack of visual damage as proof drift is not a issue.
    Good observation.

    I appreciate your observations but, all I wanted to do was give you a heads up on possible problem.
    Do I try to address all the various comments or just consider the source and move on.
  6. White Gardens

    White Gardens LawnSite Fanatic
    Messages: 6,776

    According to the DuPont rep I spoke to, the were trying to have some info by today, but they were still consulting with different universities and other specialists and he thought we should see info by the first of next week.
  7. bflower

    bflower LawnSite Member
    Messages: 94

    Just got off a property today, customer was curious as to why his 6' norways were croaking. I thought possible frost damage due to the fact it was near the tops and a few odd flagged branches- looked like typical herbicide curling but was at top of plant so thought i was safe. I knew better than to use the magic bullet, but its rainfastness has made it possible to get through the wettest spring in ohio history. Looks like we'll be going back to old science tomorrow! Hope Dupont has their checkbook ready, With 5 gallons of product out this could get costly quick.
  8. grassman177

    grassman177 LawnSite Fanatic
    Messages: 9,795

    if this is a true outcome from imprellis, this is going to suck for you guys with all this damage showing up.
  9. NattyLawn

    NattyLawn LawnSite Bronze Member
    Messages: 1,643

    My Agrium rep e-mailed DuPont and their response to him that spraying under evergreens with no turf will cause damage.
  10. pieperlc

    pieperlc LawnSite Senior Member
    from Midwest
    Messages: 545

    It's a weeping Norway spruce. Branches are going to droop on a healthy tree. Not saying it's a healthy tree but the drooping isn't necessarily related to the herbicide damage.
    Posted via Mobile Device
    Last edited: Jun 4, 2011

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