Parasitic mite syndrome (PMS)
Parasitic mite syndrome (PMS)
For the past several years, we have been seeing diseased bee larvae with symptoms
resembling a cross between foulbrood and sacbrood. The U.S.D.A. Beltsville Bee Lab has found these diseased larvae
to be infected with one, or commonly several, viruses. This condition seems to be limited to colonies infested
with varroa mites. Additionally, beekeepers have had bees disappear completely from previously healthy colonies
in the early fall. This situation most likely is associated with varroa mites, viruses, or a combination of both.
This complex of symptoms has been given the name "Parasitic Mite Syndrome" or PMS.
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