A pan-European epidemiological study reveals

Abstract Reports of honey bee population decline has spurred many national efforts to understand the extent of the problem and to identify causative or associated factors. However, our collective understanding of the factors has been hampered by a lack of joined up trans-national effort. Moreover, the impacts of beekeeper knowledge and beekeeping management practices have…

A scientific note on using large mixed sperm samples in...

Abstract In order to produce such ‘custom design’ colonies, it will however be necessary to reliably reproduce suitable sperm mixes to inseminate the queens. Using individual drones to inseminate a queen will be insufficient. Another queen will be inseminated with a set of semen from different drones. Hence, no single colony will have identical fathers…

Achromobacter eurydice, a Gram-variable pleomorphic bacterium associated with European foulbrood

Abstract Honeybees are prone to parasite and pathogen infestations/infections due to their social colony life. Bacterial pathogens in particular lead to destructive infections of the brood. European foulbrood is caused by the bacterium Melissococcus plutonius in combination with several other Gram-positive bacteria (Achromobacter eurydice, Bacillus pumilus, Brevibacillus laterosporus, Enterococcus faecalis, Paenibacillus alvei, Paenibacillus dendritiformis) involved as secondary invaders following the initial infection.…

Queen Quality and the Impact of Honey Bee Diseases on...

Abstract Western honey bees, Apis mellifera, live in highly eusocial colonies that are each typically headed by a single queen. The queen is the sole reproductive female in a healthy colony, and because long-term colony survival depends on her ability to produce a large number of offspring, queen health is essential for colony success. Honey bees…

Using new cage type for keeping virgin honey bee queens...

Abstract Under normal conditions, each honey bee colony contains one queen. Queenless colonies are mostly supplied with new queens using commercial caged queens. In some countries, caged virgin queens are commonly sold for such purpose. Keeping virgin queens for a long period is essential for marketing and shipping purposes. In this study, a new cage…