[MAIPC] Basal oil on ailanthus as stump treatment

[Earl "Bud" Reaves Jr.]

Hey Damien, the oil-based is much more effective and safer.   The amine
formulation is restricted use, since it can cause permanent blindness.
Basal treatment is the way to go since you don't have to cut into the bark
which makes them mad.

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*Earl "Bud" Reaves, CF*
*County Forester*
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Annapolis, Maryland 21401
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On Mon, Aug 7, 2023 at 10:49 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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>
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