Jean-Pierre
 
    The method you describe has been called the "Kramer plate" in Germany.
    Ingemar Fries has used it in Sweden as well. It is well described in
    "Living with Varroa" p 42 - 45.
 
    The formic acid gel strips I have been using in trials are a similar
    approach to achieving an extended release of the acid.
 
    For Varroa, I think it may be preferable to apply at least part of the
    material on the bottom board. When varroa drop from the cluster, they
    would then encounter the stronger fumes at the bottom board level,
    reducing reinfestation.
 
    The French translation of the label is on it's way to you by fax.
 
    Kerry Clark, Apiculture Specialist
    B.C. Ministry of Agriculture
    1201 103 Ave
    Dawson Creek B.C.
        V1G 4J2  CANADA          Tel (604) 784-2225     fax (604) 784-2299
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