Changes in a population of Apis mellifera L. selected for hygienic behaviour and its relation to brood disease tolerance

In the second swarm season, there were much higher mite levels (based on debris counts of mites) and fewer colonies swarmed, but there was no significant difference in

foulbrood in hygienic and non-hygienic colonies with clinical symptoms on each date of inspection in 1998 (top) and 1999 (bottom).. Scores of indi- vidual combs were averaged to

The main objective of this work was to study the behaviors of individually tagged bees from selected hygienic and non-hygienic colonies through the entire process of in-

Significantly more infested pupae (P < 0.001) were removed than non-infested ones: on the whole, 17% of artificially infested cells were uncapped and emptied by bees after ten

It has even been shown that the fertility rate of the virgin females (both encoun- tered and artificially reared virgin) was similar to the fertility rates of mated females

In this study, we confirmed that Apis mellifera scutellata bees are able to remove introduced mites and recap the brood cells; therefore, Varroa - specific hygienic behavior

Mean (± SE) percentage removal of dead European honey bee adults from within control and thymol-treated hives prior to thymol treatment (assay 1) and during thymol treatment (assays

The aims of this study were: (1) to de- termine the standard morphometric classifica- tion coefficients, canonical discriminant func- tion coe fficients, and constant coefficients of the