>I treated my hive with Thymovar for 5 weeks last Fall,
Did you use the little cardboard squares to put the Thymol on? A few years back I used Apiguard and put the 50 ml directly on the top bars between the brood boxes. It was a disaster- the stuff soaked into the wood of the frames, and smelled strongly for weeks. The queens moved as far away as possible, making for small brood nests smashed up against a side wall. I had to go thru each box and rearrange frames. Using the cardboard I can smell the thymol while treatment is on, but as soon as treatment is over not much residual.
I later found out putting thymol in between brood chambers is much less effective than putting on top of a double, with spacer rim.
Brion
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