> If they are the studies I remember,  above 4.4 was harmful and below that
> was less or marginally effective. Sort of a sweet spot for oxalic.
>
> As I recall from a lecture at Apimondia in Dublin in 2005 the Italians had
> concluded that the concentration of sugar was as important as the
> concentration of Oxalic, with 3.6% being as good as or better than 4.2.
>

Your recall is better than my recall. I looked back on my notes and it was
3.5% as the sweet spot. Higher was worse (killed bees) and lower was not as
effective.

Bill Truesdell
Bath, Maine

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