[GeoStL] Re: Caches screwed into trees?

  • From: "Bernie Ver Hey" <Happykraut@xxxxxxxxxxxxx>
  • To: <geocaching@xxxxxxxxxxxxx>
  • Date: Tue, 3 Jan 2012 10:58:58 -0600

To make a real long story short. Leave the trees alone. Who can remember all
this and who would even pay attention to it.  Bernie


From: geocaching-bounce@xxxxxxxxxxxxx
[mailto:geocaching-bounce@xxxxxxxxxxxxx] On Behalf Of Bob TheCacher
Sent: Tuesday, January 03, 2012 10:33 AM
To: geocaching@xxxxxxxxxxxxx
Subject: [GeoStL] Re: Caches screwed into trees?


Ok, here's the whole story that was given to me by a couple of Rangers:  It
all depends on the type of tree and the time of year that a nail/screw is
put into a tree.  Ash trees are the most resilient and can take a lot of
foreign objects in them.  Next is the pine/evergreen variety which is second
in line and can tolerate a lot also.  Then Oaks are pretty good at taking
the "spike".  I don't remember what was after that except that the least
tolerant was the Dogwood. But who would use a Dogwood anyway.  The second
issue is the time of year.  When the sap is running more quickly, as in the
summer, the tree can plug itself up quickly and protect itself.  During the
winter months is the worst as the sap doesn't flow fast and takes more time
to seal. Leaving it prone to infection longer.

One more variable the park rangers told me was the thickness of the bark.
The thicker the bark the better.  I suppose this may go back to the type of
tree being 'nailed' and the ability to seal up.   So pick a thick bark tree
in the summer and use a nail/screw that won't rust (another variable).


Date: Mon, 2 Jan 2012 20:36:01 -0800
From: jennyann1975@xxxxxxxxxxxxx
Subject: [GeoStL] Re: Caches screwed into trees?
To: geocaching@xxxxxxxxxxxxx

Yeah I agree. I work for a company that supplies products for lawn care
companies and yes it only takes one nail hole to leave the tree open to

I love bird houses caches but there are ways to secure the bird house
without nailing into the tree or drilling a hole. I cringe every time I come
across one nailed to a tree.

Yeah I know we all grew up with tree houses etc with the trees surviving
nails etc, but times are changing and tree diseases are more prevalent today
then they were twenty years ago. 


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