[MAIPC] Basal oil on ailanthus as stump treatment

[Mike Van Clef]

Hi Damien,

Cutting them in general makes me nervous, but sounds like it is a
requirement in your case.

My instinct would be to go with triclopyr rather than glyphosate. But maybe
another option is EZJect with imazypyr? It works well in zapping existing
connected sprouts.

-Mike


Michael Van Clef, Ph.D.
Stewardship Director, Friends of Hopewell Valley Open Space
Program Director, New Jersey Invasive Species Strike Team
Principal, Ecological Solutions, LLC

Office: 609-730-1560
Mobile: 908-528-6674


On Mon, Aug 7, 2023 at 10:51 AM Ossi, Damien (DOEE) <damien.ossi at dc.gov>
wrote:

> Hi MAIPC members,
>
>
>
> Does anyone use oil-based triclopyr rather than water-based on ailanthus
> as a stump-cut treatment?  We’re looking to remove a large number of
> ailanthus in DC before the spotted lanternflies arrive in force, and the
> vendor is proposing to do a stump-cut treatment with triclopyr.  I want to
> recommend that they use Garlon-4 or equivalent rather than Garlon-3a or
> equivalent, because the herbicide can be applied to both the sapwood on the
> stump and the bark on base of the stump.  But I also saw a study from Italy
> that indicated that glyphosate is better for stump-cut treatment of
> ailanthus.
>
>
>
> The trees must be removed at the time of treatment, so using
> hack-and-squirt or typical basal bark treatments won’t fly.  Any advice
> from the membership?
>
>
>
> Thanks,
>
> Damien
>
>
>
>
>
> *Damien P. Ossi*
>
> Wildlife Biologist
>
> Fisheries & Wildlife Division
>
> Department of Energy & Environment
>
> Government of the District of Columbia
>
> 1200 First Street NE, 5th Floor
>
> Washington, DC 20002
>
> (202) 741-0840
>
> damien.ossi at dc.gov
>
>
>
>
> _______________________________________________
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> MAIPC at lists.maipc.org
> http://lists.maipc.org/listinfo.cgi/maipc-maipc.org
>
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