[CANUFNET] Tree of Heaven RE: CANUFNET Digest, Vol 89, Issue 5

Wed Jun 13 17:24:44 EDT 2012

Good points being brought up about Tree-of-Heaven. I am aware of this
species' potential to be invasive, and have no intention of
recommending/using it as a replacement plant. Just considering to borrow
its species rating. As far as I know, there's really nothing native to
Ontario that looks like staghorn sumac, including other *Rhus *spp (e.g., *R.
copallina*, *R. aromatica*). Regardless, *R. typhina* is locally available,
so there's my replacement veg.

Oliver K. Reichl, B.E.S.(Hons)
Consulting Arborist-Ecologist

On Wed, Jun 13, 2012 at 9:07 AM, James Urban <urbantree at toad.net> wrote:

> Tree of heaven can be invasive, but if you specify a male cultivar those
> plants are not.  unfortunately the male cultivar is still in development so
> you will have to wait a few more years.  Jut file this away until you see
> the male cultivar released.
>

> However.  Tree of heaven is not at all like sumac.  It is a huge tree
> while sumac is a small tree.
>
> Jim Urban
> Urban Trees + Soils
> 410 263 4838
>
>
>
> On Jun 10, 2012, at 12:29 PM, Iola Price wrote:
>
> > It will take me a bit of time (that I don't have at this point) to dig
> > through my files to verify, but isn't Tree of Heaven considered invasive
> or
> > potentially so in Ontario?  Iola Price
> >
> > -----Original Message-----
> > From: canufnet-bounces at list.web.net [mailto:
> canufnet-bounces at list.web.net]
> > On Behalf Of canufnet-request at list.web.net
> > Sent: June 10, 2012 12:00 PM
> > To: canufnet at list.web.net
> > Subject: CANUFNET Digest, Vol 89, Issue 5
> >
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> >
> > Today's Topics:
> >
> >   1. Re: CTLA appraisals in Ontario (Oliver Reichl)
> >
> >
> > ----------------------------------------------------------------------
> >
> > Message: 1
> > Date: Sat, 9 Jun 2012 11:40:07 -0400
> > From: Oliver Reichl <careofthetrees at gmail.com>
> > To: Canadian Urban Forest Network <canufnet at list.web.net>
> > Subject: Re: [CANUFNET] CTLA appraisals in Ontario
> > Message-ID:
> >       <
> CA+3+qfHDZ4KeDoddcVasNoMt1ZTMNCFsK16ibR+V+CHt2ewROw at mail.gmail.com>
> > Content-Type: text/plain; charset="windows-1252"
> >
> > Thanks Alex/Ian/John for your replies. Some comments:
> >
> > 1) ISAO is apparently out of supplements and all they gave me was a
> > photocopy of the list of species ratings. No worksheet. Anyone have a
> pdf of
> > the whole supplement and wanna share?
> > 2) Things started with native species on this site, and I'm very partial
> to
> > keeping it that way. Of course, I'd also prefer stock from locally
> sourced
> > seed. I chose *Ulmus americana* 'Princeton' because its apparently DED
> > resistent, still the same species, and available in the client's area,
> even
> > if it probably isn't genetically "local".
> > 3) For sumac, in the absence of a worksheet, I'm leaning towards the
> species
> > rating for Tree-of-Heaven (because of similar leaf shape, similarly
> > soft-wooded, and its low rating).
> > 4) Both "scrubby" and "tree form" Manitoba maples occur on the site. I
> like
> > Alex's *Acer* alternates, and am also considering *A. saccharinum*.
> > Basswood has also been suggested to me, I presume because its similarly
> > soft-wooded and also inclined to be multi-stemmed).
> > 5) Yes, big quotes take time to put together, but I definitely share
> Ian's
> > opinion on this. Paying for one quote is one thing, but 3x or more can
> get
> > pricey pretty quick. I think my future response will be to spontaneously
> > levy a "quote administration fee" equal to the amount someone wants for
> > submitting a quote. They probably won't like that one bit, but odds are
> that
> > anyone who's that focused on profiteering isn't gonna be your lowest
> quote
> > anyway.
> >
> > Cheers,
> >
> > Oliver K. Reichl, B.E.S.(Hons)
> > Consulting Arborist-Ecologist
> > ISA Certified Arborist #ON-1178A
> > 18 Larue Mills Rd.
> > 1000 Islands, ON  K0E 1R0
> > Tel: 613-923-8833
> > Email: careofthetrees at gmail.com
> > Web: www.oliverkilian.com/treecare
> >
> >
> > On Wed, Jun 6, 2012 at 1:22 PM, Hennessy, John
> > <John.Hennessy at brampton.ca>wrote:
> >
> >> Ian and Oliver,****
> >>
> >> ** **
> >>
> >> We have been monitoring our Zelkovia over the past two years. Not a
> >> long history, however we have had enough winter kill in exposed areas
> >> to adjust our expectations . Our Zelkovia planted in the spring did
> >> moderately better than those planted in the fall. However, any
> >> Zelkovia planted with open north westerly exposure, did
> >> poorly.(60%mortality, 30% pedestal suckering mess?s!). ****
> >>
> >> This is the second positive comment with regards to ?sensation?. We
> >> will be adding ?sensation to our list 2013, thank you. Our ?pioneer?
> >> and ?homestead? are hardy where the Zelkovia fell short. We use all
> >> three, in desirable and undesirable sites, to continue to diversify.
> >> ****
> >>
> >> ** **
> >>
> >> John Hennessy****
> >>
> >> City of Brampton****
> >>
> >> Forestry Inspector****
> >>
> >> ISA ON1193a ****
> >>
> >> ** **
> >>
> >> *From:* canufnet-bounces at list.web.net [mailto:
> >> canufnet-bounces at list.web.net] *On Behalf Of *Ian Wilson
> >> *Sent:* 2012/06/05 10:54 AM
> >>
> >> *To:* 'Canadian Urban Forest Network'
> >> *Subject:* Re: [CANUFNET] CTLA appraisals in Ontario****
> >>
> >> ** **
> >>
> >> Oliver,****
> >>
> >> ** **
> >>
> >> In the Pacific NW ISA Chapter we gave staghorn sumac a rating of 55.
> >> In my area (interior British Columbia) sumac is somewhat invasive and
> >> I would tend to rate it lower, although I have seen it used
> >> successfully for stabilizing steep banks and it also seems to be very
> >> drought resistant.***
> >> *
> >>
> >> ** **
> >>
> >> Acer negundo has a bad reputation for good reasons, but there is a
> >> clone of Acer negundo that we have experimented with in the last five
> > years ?
> >> Acer negundo ?Sensation?.  It?s a male cultivar (no seeds or boxelder
> >> bugs), it has an attractive reddish leaf colour (year round) and is a
> >> medium size tree.  It is relatively fast growing so I suspect in the
> >> long run it might have some of the weak wood and decay issues as the
> >> Acer negundo species, but in the right place I think it might be a
> >> good tree choice.  I have been impressed with this tree in parking lot
> >> islands and in sidewalk cutouts where there is very limited soil and
> >> harsh conditions that would kill most trees.  At a Canadian Tire
> >> parking lot near my house I have watched some of these trees over the
> >> last 8 years growing in very small volumes of soil and as a result
> >> they are growing quite slowly, but they don?t seem to be showing any
> >> symptoms of decline or stress and they aren?t lifting any asphalt (not
> >> yet anyway) in spite of the lack of any root barriers.  ****
> >>
> >> ** **
> >>
> >> One tree that I?ve been impressed with as an American elm alternative
> >> is Zelkova serrata.  We don?t have too many of them but they seem to
> >> be very vigorous and well adapted to boulevards and difficult sites,
> >> and quite
> >> attractive.****
> >>
> >> ** **
> >>
> >> I don?t think we?ve ever paid a nursery / landscaper for a quote ? I
> >> would expect they would offer free quotes if they want our
> >> business.****
> >>
> >> ** **
> >>
> >> Ian Wilson****
> >>
> >> City of Kelowna****
> >>
> >> ** **
> >>
> >> ** **
> >>
> >> ** **
> >>
> >> ** **
> >>
> >> ** **
> >>
> >> *From:* canufnet-bounces at list.web.net [
> >> mailto:canufnet-bounces at list.web.net <canufnet-bounces at list.web.net>]
> >> *On Behalf Of *Oliver Reichl
> >> *Sent:* Monday, June 04, 2012 7:18 AM
> >> *To:* Canadian Urban Forest Network
> >> *Subject:* [CANUFNET] CTLA appraisals in Ontario****
> >>
> >> ** **
> >>
> >> Greetings:****
> >>
> >> ** **
> >>
> >> I'm doing a large appraisal project that has brought up a couple of
> >> interesting issues. I'm keen to hear your opinions.****
> >>
> >> ** **
> >>
> >> 1) the Ontario supplement does not contain a species rating for
> >> Staghorn sumac, *Rhus typhina*. What would you consider the best
> >> alternative to use for a species rating? (I have one in mind ... just
> >> curious to hear what others may have used and why).****
> >>
> >> 2) *Acer negundo* (crapwood) and *Ulmus americana* (disease-prone) are
> >> not available in the marketplace. What would you consider the best
> >> alternatives to use for replacement plant material? (Again, I have
> >> ones in mind ... but curious to hear what others suggest or may have
> used
> > and why).
> >> ****
> >>
> >> 3) quotes for replacement trees and their delivery/installation are an
> >> integral part of the valuations. How much, if anything, would you pay
> >> a nursery or landscaping firm for a quote?
> >> ****
> >>
> >> ** **
> >>
> >> Looking forward to any replies,
> >>
> >> Oliver K. Reichl, B.E.S.(Hons)
> >> Consulting Arborist-Ecologist
> >> ISA Certified Arborist #ON-1178A
> >> 18 Larue Mills Rd.
> >> 1000 Islands, ON  K0E 1R0
> >> Tel: 613-923-8833
> >> Email: careofthetrees at gmail.com
> >> Web: www.oliverkilian.com/treecare****
> >>
> >> Please review the City of Brampton e-mail disclaimer statement at:
> >> www.brampton.ca/en/Info-Centre/Pages/Privacy-Statement.aspx
> >>
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