Regarding WAS newsletter:

We did not observe any significant differences in brood
(eggs and larvae) mortality between colonies receiving
oxalic acid and control treatments. However, the brood
mortality was significantly higher in the formic acid
treatment group when compared to the oxalic acid and
control groups (please see Figures 3, 4, and 5).

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I find it odd that they did not also look at varroa control.  What if that oxalic treatment, which appears perfectly safe, did nothing to the mites? What if the formic treatment, which appears hard on the brood, was much more effective on knocking the mites down? Why was that not included?

PLB

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