Preference for drone brood cells by Varroa jacobsoni Oud in colonies of Apis mellifera carnicaS. Fuchs
Institut für Bienenkunde (Polytechnische Gesellschaft), Fachbereich Biologie der JW Goethe-Universität, Frankfurt am Main, D-6370 Oberursel, FRG
Abstract - In colonies of A mellifera carnica infested with Varroa jacobsoni, the invasion of worker brood cells and drone brood cells by reproductive female mites was studied. In 68 choices between brood combs of both cell types, the infestation of mites per cell was, on average, 8.3 times higher in drone brood. This drone cell preference was not affected by the infestation level. It was more marked if drone brood was rare and it decreased towards the end of the drone rearing season.
Key words: Apis mellifera carnica / Varroa jacobsoni / host selection / drone brood / preference