Question:
We have what looks like bald faced hornets
girdling our white birch trees. They are stripping the bark from them.
We have not found a nest for the bees. We have sprayed wasp and hornet
killer on them repeatedly to no avail. What else can we do before we lose
our trees completely.
Replies:
A rag soaked with ammonia...you will need to soak it now and then as it
evaporates.
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