Only Matilda and Bombay are covered with Bee Cozy. Camille is not as an experiment to see if it is necessary to cover in our Vancouver winters. They don't look well wrapped as the Bee Cozy was bought on my 1st winter with the bees and I was wintering them in a single chamber. All the hives are on screen bottom board fully opened year round to promote maximum ventilation. Between the outer cover and the inner cover there is a styrofoam board to prevent a cold front on the inner cover that will cause condensation from the bees heat generation and the cold air outside.
On Dec 4th, Matilda and Bombay were treated for mites with 100ml of oxalic acid. I made sure the treated sugar syrup was nice and warm. I made 150 gm of 1:1 sugar syrup with 4 gm of oxalic acid. Camille was not treated as an experiment as well.
Matilda and Bombay were clustered in exactly the same manner except the bees in Matilda was on the right and Bombay was on the left of the hive. They filled 6 frames in the upper and lower chambers = 12 frames of bees.
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