> Here in Canada OA is exempted from residues tolerance since first
> time registered with PMRA.
I found this:
http://honeycouncil.ca/archive/documents/29575%20Approved%20E%20label%2004Nov2010.pdf
Use only in late fall or early spring when little or no brood is
present. Do not use when honey supers are in place to prevent
contamination of marketable honey.
If residues are not an issue legally, why does the label prohibit
the use of oxalic acid while supers are on?
Of course, the supers are not on in any case "when little or no brood
is present", which brings me to also wonder why that caveat is part
of the label; we had reports on this list a year or two ago of people
successfully using multiple OAV treatments a few days apart, to catch
mites as bees emerge, until a full "lifecycle" of bees had been treated.
It would be handy to be allowed to do this in August in years where
the weather is too hot for formic acid...
Anne, backyard beekeeper, Montreal.
***********************************************
The BEE-L mailing list is powered by L-Soft's renowned
LISTSERV(R) list management software. For more information, go to:
http://www.lsoft.com/LISTSERV-powered.html