i am sorry to say this but it sounds like them.
as you examine the hive look for the beetles.
then look at the frames .
if i find them very early there is just a cluster on 1 or 2 frames and i can
clean those affected frames.
if however they have scattered, i usually lose the hive.

which leads me to a question.
what is a safe way to clean the pierco frames.
can i scrub them with bleach and water.
how much bleach is safe for the bees.
will it leave residue on the plastic and affect the bees.

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