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

Wed Jun 13 22:21:05 EDT 2012

Remember that the guide is just a guide. 

The guide says that you can use any rating you deem appropriate so long as
it is defensible. Regional guides are also just guides. The Ontario
supplement which gives guidance for species ratings is also admittedly out
of date. Work is being done to rectify that but we are also waiting for a
new guide (10th edition) in which for certain all the guidance will change.

Don't make it too complicated. Figure out a rating you think is good and
defendable and use it.

We can all hope that when the 10th edition comes out it will clarify some
things for us.or give us lots more to talk about at the very least.

Cheers,

Philip van Wassenaer, B.SC., MFC

1248 Minnewaska Trail

Mississauga, Ontario

Canada, L5G 3S5

Tel:  (905) 274-1022

Cell: (647) 221-3046

Fax: (905) 274-2170

Description: UFI new logo very small

www.urbanforestinnovations.com <http://www.urbanforestinnovations.com/> 

From: canufnet-bounces at list.web.net [mailto:canufnet-bounces at list.web.net]
On Behalf Of Oliver Reichl
Sent: June-13-12 5:25 PM
To: Canadian Urban Forest Network
Subject: Re: [CANUFNET] Tree of Heaven RE: CANUFNET Digest, Vol 89, Issue 5

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 <tel:410%20263%204838> 

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
<mailto:CA%2B3%2BqfHDZ4KeDoddcVasNoMt1ZTMNCFsK16ibR%2BV%2BCHt2ewROw at mail.gma
il.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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