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Subject:	Re: Preference of Varroa for drone brood
From:	Peter Borst <[log in to unmask]>
Reply To:	Informed Discussion of Beekeeping Issues and Bee Biology <[log in to unmask]>
Date:	Fri, 15 Jul 2016 12:02:08 +0000
Content-Type:	text/plain
Parts/Attachments:	text/plain (8 lines)

> In a wind tunnel bioassay, mites were attracted to odours from living fifth-instar worker and drone larvae, but not to volatiles from cocoons, brood food or a blend of fatty acid esters. The sex of the host was not an important factor affecting the behavioural responses of the mites in any assay. We conclude that host kairomones play a role in the host acquisition process, but we found no evidence to support the hypothesis that mites use these substances to differentiate between worker and drone brood.

Calderone, N. W., & Lin, S. (2001). Behavioural responses of Varroa destructor (Acari: Varroidae) to extracts of larvae, cocoons and brood food of worker and drone honey bees, Apis mellifera (Hymenoptera: Apidae). Physiological Entomology, 26(4), 341-350.
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