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Re: Maliciousness.....

Subject: Re: Maliciousness.....
From: benfuest
Date: Jul 03 2008 12:58:37 
________________________________________________________________________
TREES: THE KEY TO CLIMATE PROOFING OUR CITIES- London, 10th July 2008.
A 10% increase in urban tree cover could neutralise rising city
temperatures, but large trees with irreplaceable climate-control benefits
are being lost at an alarming rate. This pioneering conference explores
practical possibilities to reverse tree loss within current planning
framework. It can be done: our objective is to define how to do it. FINAL
BOOKINGS NOW AT WWW.TREEWORKS.CO.UK/SEMINARS
________________________________________________________________________

Bill is it that plumbing material you refer too ?
If so the Americans use it all the time in lightning protection systems to
secure there down conductors. It is what the drive fasteners are made of,
They are sunk well and truly into the tree and some time completely
engulfed.
I spent a pleasant afternoon at Bartlet lab in the USA talking with Dr Tom
Smiley and we conquered that there is no scientific evidence to support the
common conception that Cu kills trees. Unless perhaps in soluble form. 

Hope that helps Ben
----- Original Message -----
From: <Andersonarb@xxxx.com> 
To: "UK Tree Care" <uktc@xxxxxx.tree-care.info>
Sent: Thursday, July 03, 2008 1:28 PM
Subject: Maliciousness.....



________________________________________________________________________
TREES: THE KEY TO CLIMATE PROOFING OUR CITIES- London, 10th July 2008.
A 10% increase in urban tree cover could neutralise rising city
temperatures, but large trees with irreplaceable climate-control benefits
are being lost at an alarming rate. This pioneering conference explores
practical possibilities to reverse tree loss within current planning
framework. It can be done: our objective is to define how to do it. FINAL
BOOKINGS NOW AT WWW.TREEWORKS.CO.UK/SEMINARS
________________________________________________________________________

What ho etc etc.
I've just come back from looking at some trees that were maliciously
damaged
15 years or so ago. They didn't get killed obviousl but the damage is
still
obvious; neatly drilled holes at the bases, presumably for weed killer,
the 
soils appear to have been polluted with oil, still apparent after all this
time, and also that old favourite Cu nails hammered in to the trunk at
ground 
level.
What I would like to know if someone cleverer than me could reveal, is
what
is the objective of sticking Cu nails in a tree? Obviously it's a
nominally 
heavy metal albeit (according to my books) the least toxic of them. Cu
compounds are obviously used as fungicides so they won't do the
mychorrhizae any 
good...

Also has anyone ever sen a tree killed specifically by Cu nails?

Thanks as ever.

Bill.

PS/NB. I'm not mentioning Cu by its more common name, just in case someone
one day in searching out information on it's efficacy for tree killing,
should 
stumble on this thread and any info it may reveal. Don't wanna make it too
easy for em. Although Chris might very well tell me I'm wasting my time
being 
over-cautious.






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