[MAIPC] Glyphosate's effects on trees and soil microbia

[Stephen Hiltner]

One factor to consider is quantity. Do the studies test response according
to quantity applied? My experience with the anti-glyphosate movement is
that it doesn't discriminate between massive applications on farms and much
smaller, more targeted applications for habitat restoration.

Steve
PrincetonNatureNotes.org
NewsCompanion.com

On Wed, Oct 18, 2017 at 9:37 AM, Kirsten Johnson <kirsten2622 at comcast.net>
wrote:

>
> Sorry I can’t help with the glyphosate question - but FYI - you can get a
> free account with Jstor that allows you to search and read on line, plus
> save 3 items at a time on your ’shelf.’ Go to the jstor homepage and click
> “register." You cannot print. However, I have found that articles I’ve
> first located on jstor are sometimes printable from elsewhere on line.
>
> Kirsten
>
> On Oct 18, 2017, at 9:17 AM, Ossi, Damien (DOEE) <damien.ossi at dc.gov>
> wrote:
>
> I am trying to convince the land managers in my city (Greenbelt, MD) to
> start managing the invasive plants on some of their land.  I am getting
> some pushback from a community group that says there’s proof that
> glyphosate will kill or damage trees and soil biota.  I’ve been looking for
> published papers that would support of refute their arguments, but have
> been unable to find much. (I don’t have access to JSTOR, BioOne, etc.)
>
> They are citing the following documents:
>
> (1) Pennsylvania Extension Service:  Tree roots absorb glyphosate; it has
> a much longer half-life than when it is in the soil.  A single glyphosate
> application results in ,persistent stunted leaf growth.
> https://extension.psu.edu/use-glyphosate-with-care-near-trees
>
> (2) Michigan Extension Service: Herbicides that touch the bark of mature,
> healthy trees may be absorbed by the outer bark and negatively affect the
> adjacent vascular tissue. http://msue.anr.msu.
> edu/news/be_careful_where_you_spray_that_stuff
>
> (3) Glyphosate interferes with the ability of tree roots to absorb
> manganese, zinc, iron, and boron from the soil; resulting in root rot,
> reduced cold hardiness, and reduced drought hardiness. http://homeguides.
> sfgate.com/effect-glyphosate-tree-roots-29076.html
>
> Does anyone have any resources that address these issues, or is there any
> known comprehensive document that reviews and summarizes independent
> research on the effects on glyphosate in forest ecosystems?
>
> Thanks,
>
> Damien
>
> *Damien P. Ossi*
> Wildlife Biologist
> Fisheries and Wildlife Division
> Department of Energy & Environment
> Government of the District of Columbia
> 1200 First Street NE, 5th Floor
> Washington, DC 20002
> Desk: (202) 741-0840
> Web: doee.dc.gov <http://www.doee.dc.gov/>
>
> _______________________________________________
> MAIPC mailing list
> MAIPC at lists.maipc.org
> http://lists.maipc.org/listinfo.cgi/maipc-maipc.org
>
>
>
> _______________________________________________
> MAIPC mailing list
> MAIPC at lists.maipc.org
> http://lists.maipc.org/listinfo.cgi/maipc-maipc.org
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.maipc.org/pipermail/maipc-maipc.org/attachments/20171018/5a678226/attachment.html>