It is calculated after the three treatments of Hopguard. Then we applied Apivar as a finishing treatment. All collected mites were then counted and calculated based on the relative efficacy to Apivar. The efficacy was 40% relative to Apivar.

We have also calculated the washed 300 mites / hive before and after the three Hopguard treatments. The efficacy was 55% reduction of mites on bees.

So, if I have this right, You treated on group of hives three times then dropped the remaining mites with Apivar.

You also had controls which were not treated during the test, but got the same Apivar treatment as you used for finishing the test hives.

You assumed that you dropped essentially all the mites with Apivar and compared the drop from the test hives to the control count and found the Hopguard hives had 60% as many mites and reported this as a 40% efficacy?

Is that right?

Almost there! Yes Sir you are right... Love the way you simplified it.


Medhat


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