Translator Disclaimer
1 September 2010 A Test for Interactions between Varroa destructor (Acari: Varroidae) and Aethina tumida (Coleoptera: Nitidulidae) in Colonies of Honey Bees (Hymenoptera: Apidae)
Author Affiliations +
Abstract

Field surveys indicate that declining colonies of honey bees, Apis mellifera L. (Hymenoptera: Apidae), suffer simultaneously from multiple stress factors, raising concern that multiple stressors could be interacting to compound bee stress in an additive or synergistic fashion. We tested two null hypotheses: 1) Varroa destructor Anderson & Trueman (Acari: Varroidae) (=varroa) and Aethina tumida Murray (Coleoptera: Nitidulidae) do not interact such that the number of one affects the number or density of the other and 2) bee damage from one does not change in response to changing levels of the other. In a split-split plot design replicated in 2 yr and two states, experimental apiaries were established and each manipulated to achieve one of five average ± SE colony adult A. tumida populations: 0; 285 ± 6; 721 ± 5; 1,544 ± 14; or 3,175 ± 90. Within each apiary, the population of varroa mites in each colony was manipulated to achieve one of three average ± SE colony mite populations: 763 ± 121; 1,111 ± 155; or 1,856 ± 300. On a one-way basis, there was a predictable increase in measures of bee morbidity with increasing densities of each pest. Colony varroa mite levels decreased as apiary-wide A. tumida levels increased. In contrast, colony levels of the honey bee mite, Acarapis woodi (Rennie) (Acari: Tarsonemidae), increased as colony varroa levels increased. Concerning measures of bee morbidity, varroa and A. tumida did not interact such that damage by one was affected by changing levels of the other. A treatment threshold established for varroa before the arrival of A. tumida has not changed during the years since A. tumida has become established in the region.

© 2010 Entomological Society of America
Keith S. Delaplane, James D. Ellis, and W. Michael Hood "A Test for Interactions between Varroa destructor (Acari: Varroidae) and Aethina tumida (Coleoptera: Nitidulidae) in Colonies of Honey Bees (Hymenoptera: Apidae)," Annals of the Entomological Society of America 103(5), (1 September 2010). https://doi.org/10.1603/AN09169
Received: 16 November 2009; Accepted: 1 April 2010; Published: 1 September 2010
JOURNAL ARTICLE
5 PAGES

This article is only available to subscribers.
It is not available for individual sale.
+ SAVE TO MY LIBRARY

SHARE
ARTICLE IMPACT
RIGHTS & PERMISSIONS
Get copyright permission
Back to Top