Hi All,
Last week, I have visited for the first time my five hives. And they are all doing fine. I was agreeably surprised that for the second year I have no loss!!! It has to be noted that last year I had only one hive :-)
This year, I overwintered four hives with two deep boxes and one with only one deep box.
As it is still cold here, I have only removed one insulation and I have feed them with 15LBs of home made candy (3LBs per hive). I also mixed to the candy a protein supplement + a little bit of vinegar.
May be it will be of interest for some of you; for the insulation, I have used two types of materials.
In fact, as winters here are very cold (-4f is not uncommon here in Rimouski (QC)), I used a double insulation; one with aluminium double bulb and another with a 1.5inch Styrofoam (see pictures bellow). I also added top feeders to the hives filled with a cellulose based insulation material.
Here is also a picture of one of my hives taken few weeks ago (22 mars). It was almost not visible :-)
I have read that it is important to have air flow to avoid condensation. I have to admit that it is not the case with my hives: by adding plastic bags on top of the insulation, there is no way for the condensation to escape. Even with this, no one of my hives died! I have to admit that when I opened my hives last week there were a lot of waters droplets between the boxes and the insulation and also I noticed some moisture outside the boxes (and few traces inside). So why I haven't made small holes to let the condensation go out? As I said earlier, I used feeders filled with cellulose-based insulation which may absorb the condensation.
What do you think of that?
Ohh, you can notice dead bees on the snow ... do you think it is a good idea to put a screen to force bees stay inside until there is no more snow?