caa a22 4500 388093447 CHVBK 20180307125258.0 cr unu---uuuuu 161130e199904 xx s 000 0 eng 10.4039/Ent131279-2 doi S0008347X00009901 pii (NATIONALLICENCE)cambridge-10.4039/Ent131279-2 FEEDING MENTHOL TO HONEYBEES (HYMENOPTERA: APIDAE): ENTRY AND PERSISTENCE IN HAEMOLYMPH WITHOUT CAUSING MORTALITY [Elektronische Daten] Tracheal mites, Acarapis woodi (Rennie) (Acari: Tarsonemidae), are important parasites of honeybees, Apis mellifera L. (Morse and Flottum 1997). They enter the prothoracic tracheae and feed through the walls on haemolymph. Currently, these mites are controlled by applying 50 g of menthol crystals in a perforated bag per hive when ambient temperatures are 15°C or more. Even then, it takes 2 weeks for the menthol to perfuse the hive (Herbert et al. 1988; Wilson et al. 1990). In cold climates, sublimation of menthol is too slow to be effective in controlling mites, especially in spring and fall when control is most needed (Scott-Dupree and Otis 1992). Because menthol fumes enter the bees' trachea and kill the mites therein, it may be possible to kill the mites with menthol that is delivered to them via the haemolymph. Therefore, finding if menthol could become systemic when ingested by bees and it could kill tracheal mites by that route, an ingestible menthol medicament for the bees would hold potential for mite control (Kevan and Kevan 1997). Copyright © Entomological Society of Canada 1999 Kevan S.D. Enviroquest Ltd., 352 River Road, Cambridge, Ontario, Canada N3C 2B7 Nasr M.E. Ontario Beekeepers' Association, c/o Department of Environmental Biology, University of Guelph, Guelph, Ontario, Canada NlG 2W1 Kevan P.G. Department of Environmental Biology, University of Guelph, Guelph, Ontario, Canada N1G 2W1 The Canadian Entomologist Cambridge University Press 131/2(1999-04), 279-281 0008-347X 131:2<279 1999 131 TCE https://doi.org/10.4039/Ent131279-2 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.4039/Ent131279-2 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Kevan S.D. Enviroquest Ltd., 352 River Road, Cambridge, Ontario, Canada N3C 2B7 NATIONALLICENCE 700 1- Nasr M.E. Ontario Beekeepers' Association, c/o Department of Environmental Biology, University of Guelph, Guelph, Ontario, Canada NlG 2W1 NATIONALLICENCE 700 1- Kevan P.G. Department of Environmental Biology, University of Guelph, Guelph, Ontario, Canada N1G 2W1 NATIONALLICENCE 773 0- The Canadian Entomologist Cambridge University Press 131/2(1999-04), 279-281 0008-347X 131:2<279 1999 131 TCE CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-cambridge