Imprelis

[bonner1040]

Have you guys heard of this?

Imprelis and Investigation of Damage to Trees
Resources
E. I. du Pont de Nemours and Company Imprelis Order
Case Letters: E.I. DuPont de Nemours and Company (PDF) (4 pp, 67k, About PDF)
June 2012

In the summer of 2011, the Environmental Protection Agency received reports from numerous states that E. I. du Pont de Nemours and Company's (DuPont) herbicide, Imprelis, which contains the active ingredient aminocyclopyrachlor, may have caused injury to certain species of evergreen trees, particularly Norway spruce and white pine.

Imprelis is no longer on the market because the EPA issued a stop sale order in August 2011: Letter to DuPont on Stop Sale, Use, or Removal Order (PDF) (9 pp, 164k, About PDF). The agency is conducting an independent evaluation and has required the company to expedite submission to the EPA of detailed information related to the situation to determine what caused the injuries.

I wonder if the fact that when they took it off the market, it was autumn, had anything to do with the idea that it only affected conifers and non-deciduous species.

 

[bonner1040]

http://www.epa.gov/pesticides/regulating/imprelis.html

http://imprelis-facts.com/

http://www.nytimes.com/2011/07/15/science/earth/15herbicide.html?pagewanted=all&_r=0

It seems like DuPont is being pretty responsible.

 

[sotc]

Yep, been a big deal for awhile. It showed up most prevelently in conifers. They couldn't figure out what was causing it till they started seeing the spiral die back in spruce and such that led them to look into the soil

 

[tophopper]

It didnt only affect conifers. There are deciduous species affected as well.

In my yard I have a dead Honeylocust, dead White Spruce, declining Fir and declining White Pine. All from a single Imprelis application.

 

[flushcut]

There have been a few golf courses that have lost a few trees, hundreds, because of that stuff.

 

[tophopper]

Dupont is paying out alot of settlement money.

 

[bonner1040]

I heard as high as 50k per tree for mature trees!

 

[Cobleskill]

I remember they said Round-Up broke down in sunlight to become non-toxic - not true. Atrazine has become a problem in wells where it is used a lot. I think most herbicide/pesticides are inherently hazardous. Less used the better. I think Canada makes it hard to buy and use them. The smell of lawns that have been treated with Weed-N-Feed is enough to make me gag. A Chem-Lawn seems like a bad thing to have.

 

[CurSedVoyce]

My rule of thumb is pretty much, if it will kill something... chances are it is bad juju given the right circumstances no matter what they say.

 

[canadiantreeman]

It is frightening to think that all of those products mentioned; Round Up, Imprelis, WeednFeed, et al., had R&D teams, teams of scientists, publicists and ad agencies promote them. The EPA is no better, consider the case of the pesticide class neonicotinoids in Northa America. Begs the question why whe bother sterilizing our environments only to have the products whe think are cleaning our homes slowly kill us? At least the shareholders see growth!

 

[Tree Reb]

DuPont isn't too popular around here that's for sure. A leak they deny has killed thousands of trees as well as gardens, plants and a lot of vegetable gardens.

Metsulfuron-methyl.http://www.environment.nsw.gov.au/pollution/girraween.htm They were in court again in August but must have got another adjournment as nothing has come up about it yet.

Some skin problems for a few people. Lots stories here:http://parramatta-advertiser.wherei...-environment-court-over-dead-girraween-trees/

These pictures are from the street behind the DuPont plant, the For Lease one is directly behind it.

 

[MasterBlaster]

Dupoint sounds like a buncha ASSHOLES.

 

[Cobleskill]

I have heard them refered to Dumpit.

 

[Bermy]

Hey Reb...any idea if Blackwood (Acacia melanoxylon) is super sensitive to dicamba?
I have a row of them dying one by one, there has been a dicamba issue, almost a year ago but also its been super wet in the area as well.
Small herbaceous stuff under the blackwoods are ok, as well as hawthorn in the immediate vicinity...

 

[Cobleskill]

http://www.elkhornslough.org/habitat-restoration/weeds.pdf

pg.4 has blackwood control. Dicamba is used to control something else on pg.5

 

[Bermy]

Thx but I'm trying to save them, or at least find out what's killing them!

 

[Cobleskill]

Yeah. I figured if they weren't recommending it for killing it wouldn't be susceptible.

 

[Bermy]

Gotcha!