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Aktuelle Seite: Home Information - Wissen Bienengesundheit Varroa destructor WANTUCH, HOLLY et al. (2009): Removal of Drone Brood From Apis mellifera (Hymenoptera: Apidae) Colonies to Control Varroa destructor (Acari: Varroidae) and Retain Adult Drones

WANTUCH, HOLLY et al. (2009): Removal of Drone Brood From Apis mellifera (Hymenoptera: Apidae) Colonies to Control Varroa destructor (Acari: Varroidae) and Retain Adult Drones

Veröffentlicht: Mittwoch, 01. Juli 2015 07:38 | Geschrieben von Super User | Drucken | E-Mail | Zugriffe: 4300
WANTUCH, HOLLY et al. (2009): Removal of Drone Brood From Apis mellifera (Hymenoptera: Apidae) Colonies to Control Varroa destructor (Acari: Varroidae) and Retain Adult Drones


ABSTRACT The parasitic mite Varroa destructor Anderson & Trueman (Acari: Varroidae) has plagued European honey bees, Apis mellifera L. (Hymenoptera: Apidae), in the Americas since its introduction in the 1980s. For many years, these mites were sufÞciently controlled using synthetic acaricides. Recently, however, beekeepers have experienced increased resistance by mites to chemical pesticides, which are also known to leave residues in hive products such as wax and honey. Thus there has been increased emphasis on nonchemical integrated pest management control tactics for Varroa. Because mites preferentially reproduce in drone brood (pupal males), we developed a treatment strategy focusing on salvaging parasitized drones while removing mites from them.Weremoved drone brood from colonies in which there was no acaricidal application and banked them in separate “drone-brood receiving” colonies treated with pesticides to kill mites emerging with drones.Wetested 20 colonies divided into three groups: 1) negative control (no mite treatment), 2) positive control (treatment with acaricides), and 3) drone-brood removal and placement into drone-brood receiving colonies. We found that drone-brood trapping signiÞcantly lowered mite numbers during the early months of the season, eliminating the need for additional control measures in the spring. However, mite levels in the drone-brood removal group increased later in the summer, suggesting that this beneÞt does not persist throughout the entire season. Our results suggest that this method of drone-brood trapping can be used as an element of an integrated control strategy to control varroa mites, eliminating a large portion of the Varroa population with limited chemical treatments while retaining the beneÞts of maintaining adult drones in the population.
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Kategorie: Bienengesundheit / Varroa (Varroa destructor)

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