[NAFEX] Arbor vitae -- summer spraying

akmanty akmanty at localnet.com
Tue Apr 17 19:31:48 EDT 2007

Steve H. answered my question re:  black on arbor vitae by suggesting 
fungus feeding on honeydew from scale insects.

He said he sprayed summer oil over a couple of years.

My question:  how often to spray

Thanks,  AK

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