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Thread: todays news

  1. #3931
    Senior Member Adam's Avatar
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    Quote Originally Posted by lindsay s View Post
    Some of my weaker colonies with old queens and in a poor area produced very little honey, but 3 colonies that had been split at my clover site still managed to produce about 65-75lbs each. Overall above average crops here this season.
    Something I noticed this year in particular was the fact that 2016 queens ramped up brood-rearing slowly and produced a much lower crop compared to 2017 queens. My guess is that the late spring was to blame. However the crop in general was excellent for me this year. It's a shame there is no clover to speak of around me so there's a dearth until Ivy comes to the rescue.

    One swarm from 11 full-sized colonies. 800kg.
    Last edited by Adam; 13-12-2018 at 08:31 PM.

  2. #3932

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    Recent publication in Proc. Natl. Acad Sci. on Varroa's food source. In the abstract - Via transmission electron microscopy, we observed externally digested fat body tissue in the wounds of parasitized bees. Mites in their reproductive phase were then fed a diet composed of one or both tissues. Mites fed hemolymph showed fitness metrics no different from the starved control. Mites fed fat body survived longer and produced more eggs than those fed hemolymph, suggesting that fat body is integral to their diet when feeding on brood as well.

    The investigators used stains to follow the different tissue - would have been interesting to use a mass spec approach perhaps on in vitro raised mites to prove/confirm what is being taken up. Why would a parasite pass up the opportunity to acquire nutrients from both fat and hemolymph?

  3. #3933
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    Quote Originally Posted by Feckless Drone View Post

    The investigators used stains to follow the different tissue - would have been interesting to use a mass spec approach perhaps on in vitro raised mites to prove/confirm what is being taken up. Why would a parasite pass up the opportunity to acquire nutrients from both fat and hemolymph?
    Quite.

    Pretty pictures though !

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