A local beekeeper or government apiculture agency may give you the best
information on recommendations (and what is legal) for your area.
 
I've tried to keep up with the varroa reference books available. In North
America at least, the situation has been changing rapidly and its hard to keep
up to date except by refering to periodicals.
 
I have:
 Dietz and Hermann 1988 Biology Detection and Control of Varroa.. 80 p.
 
Mobus and Connor 1988? The Varroa Handbook 52 p
 
Mobus and de Bruyn 1993 The New Varroa Handbook 160 p (It looks to me that the
Mobus part is just re typed on pages half the previous size, and the US oriented
Connor segment is replaced with a UK oriented de Bruyn piece)
 
any of the above are adequate, but have parts that may be inappropriate for a
specific situation.
 
Above any of those above, I would recommend
 
Living with Varroa. 1993. proceedings of an IBRA symposium Nov. 92 in London.
 58 p., edited by Andrew Matheson, available from IBRA UK (can be contacted on
internet)
 
good luck
 
Kerry Clark, Apiculture Specialist
B.C. Ministry of Agriculture
1201 103 Ave
Dawson Creek B.C.
        V1G 4J2  CANADA          Tel (604) 784-2225     fax (604) 784-2299
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