In a message dated 15/04/03 05:03:09 GMT Daylight Time,
[log in to unmask] writes:

<< When you consider the ease of treatment, its effectiveness, the lack of
 residue, it seems to be an excellent alternative control for Varroa.
 Plus, it is cheap and widely available. Only trouble, it is not
 permitted/licensed in the US (but is in Europe). >>

The main use of oxalic acid is to clean discoloured wood work.  I an sure you
will have some staining on the top bars of some of your frames.  I expect it
would be regarded as good hygienic practice to have your top bars as clean as
possible by dribbling oxalic acid solution on them.  If you should happen to
miss and get it on the bees instead, well try again next year.

I used it this year (March 3rd) on a hive that was dropping naturally 3 mites
a day. The model predicts 300 mites in the hive from that count. 800 dropped
over a couple of days, plus another 100 in the following couple of days or
so. Then it tailed off to about 15 a day and is now back to 3 a day.

Chris

Chris

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