I started feeding me bees 2:1 syrup about 2 weeks ago, and during the 1st feeding I noticed that bees are defensive and something like robbing is going on. So I decided to build my own robbing screen using s regular window screen mesh. I put the same mesh on the top to cover the inner cover hole.
Before, since weather got colder I put the entrance reducer with 1" hole.
It looks now my hives are heavy enough to survive winter
IMG_1465.JPG , IMG_1466.JPG
I am just not sure, should I leave the robbing screens on or take them off for winter?
They are on the way for bees, but they will be on the way of robbers, wax moth, mice and so on ...