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  1. #1
    Join Date
    Oct 2009
    Location
    Panama City, Florida, USA
    Posts
    451

    Default Why not treat be instead of poisoning varroa

    Seems like all the treatments available for varroa are poisons. It seems that it should be fairly easy to add something to syrup that is fed to bee in the fall that would supress the varroa's ability to reproduce. Varroa birth control. The bees injest it as do the bee brood, then the varroa injest it when they feed on the bee's haemoglobin As the colony is headed be an already fertile queen the additive would not hamper her ability to lay but the varroa and by adding in the fall. It could clear out before hive build up
    In the spring.

    As it is the varroa in the Norris cells that cause the most problems. Just a thought that occurred to
    Me when I read a few studies on breeding varroa resistant/tolerant bees.

  2. #2
    Join Date
    Aug 2012
    Location
    webster county Iowa
    Posts
    30

    Default Re: Why not treat be instead of poisoning varroa

    there have been some heat related things tried as well for treatment, apparently the varroa aren't quite as heat tolerant as the bees are so some things have been done such as heating the hive to the point of killing the pests and there are some heated or electrified frames that are set up for drones. Of course some people use drone frames and pull the drone frames as kind of a treatment. lot of ideas but on a practical level no magic bullets.
    Going to be a real challenge to eliminate the pests entirely, breaks in brood cycles help as do all kinds of other techniques but overall many people have resigned to live with a level of infestation, even if you solve your personal mite problem there is no way to prevent drones from other hives bringing the mites back in or bees from different hives meeting in flowers and getting a mite transferred, etc....

  3. #3
    Join Date
    Sep 2011
    Location
    Corvallis, OR
    Posts
    223

    Default Re: Why not treat be instead of poisoning varroa

    Varroa birth control - interesting...

    There must be some chemical signal that tells a mite when to lay eggs. It *might* be possible to interfere with this signal, causing a drop in reproduction. Unfortunately all it takes is one mite that is immune to the treatment and pretty soon all mites will be resistant.

    That is the rub with mite control (or control of any pest for that matter). Targeted treatments (like pyrethroids) that attack a specific biochemical pathway are great, but resistance usually develops as it only requires one or a few genetic mutations. General poisons (thymol, formic acid, etc.) are more difficult to develop resistance to, but they are more harmful to the bees.

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