D. Sammataro et al., SOME VOLATILE PLANT OILS AS POTENTIAL CONTROL AGENTS FOR VARROA MITES(ACARI, VARROIDAE) IN HONEY-BEE COLONIES (HYMENOPTERA, APIDAE), American bee journal, 138(9), 1998, pp. 681-685
Plant ethereal or essential oils are attractive chemicals for the cont
rol of varroa mites on honey bees because they are perceived as 'natur
al' compounds that will not contaminate: dive products. Currently, the
re ate certain products that have been reported to work well under som
e conditions. We screened compounds at 50% concentrations in a lab ass
ay to see if they caused mite mortality. Once lab tested, field applic
ations were evaluated. Material that killed mites in the lab were orig
anum, a thymol mixture, clove, bay and tea tree: Origanum, the-thy, mo
l mixture, cineole and the commercial product Bee Calm all dislodged v
arroa mites, but Apistan((R)) strips (fluvalinate); applied after the
oils, resulted in additional mites being removed from bees.