[NAFEX] Arbor vitae
loneroc at mwt.net
Sun Apr 1 09:07:44 EDT 2007
How about fungus feeding on the honeydew from scale insects? This can be
hard to rub off arbovitae. I had soft brown scale on an arborvita for years
that served as a source of reinfection for tropicals (via ants) summered
near the tree. I started spraying summer oil and over a couple years it
seems to have eradicated the problem (the scale, that is).
----- Original Message -----
From: "akmanty" <akmanty at localnet.com>
To: <nafex at lists.ibiblio.org>
Sent: Wednesday, March 28, 2007 3:39 PM
Subject: [NAFEX] Arbor vitae
> Totally off the subject of fruit trees, but does anyone know what
> might be causing lower part of arbor vitae to turn black, somewhat
> shiny, but will not rub off; seems to be spreading; have tried
> various fungicides, but doesn't seem to help; have also cut it out,
> disinfecting shears?
> Or, any other place to turn for help; have tried Googling, but still
> no answers. Have also had some testing done.
> Any ideas, thanks so much, AK
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