Varroa addendum & index : for the 2nd edition of Beekeeping study notes for the BBKA examinations, basic and intermediate (published 1991) /
Yates, J. D.(John D.)
Yates, B. D.(B. Dawn)
Burrowbridge : Bee Books New & Old,
1993.
Varroa disease.
Varroa jacobsoni.
Bee culture