We have been working with Bob Noel, a beekeeper in Cumberland, Marylan
d, since August, 1995. In our opinion, Bob has discovered an effective
and economical control for varroa mite (Varroa jacobsoni Oudemans (Ac
ari: Varroidae)) and probably also for tracheal mite (Acarapis woodi (
Rennie) (Acari: Tarsonemidae)); we saw very few tracheal mites in the
hives examined.