Hi Frank,

First thing to realize is carniolans can't be managed the same as Italians
or caucasians with the same degree of success. Here is what I have found to
work the best after studying old ABJ's about the race then using the info.
I recommend not using queen ex.(not that you can't) accept for comb honey.
Use the old style of unlimited brood nests to run them, three deep hive
bodies. Keep the brood chambers from plugging up with honey and keep the
queen down by reversing as needed. Carniolan queens can be very prolific so
watch out for congestion. Make sure you place on at least two deep honey
supers on early(4 shallows, ect.). In a three deep configuration bees come
through winter very strong. Less feeding is required in the fall as there is
an extra body FULL of honey( don't be one of those who take it and replace
with sugar/corn syrup).  Supplemental feeding is fine just not complete
replacement(so don't rake me over the coals guys). If you use unlimited
brood nest swarming will be minimized.  Don't think that just because you
have three chambers in place every thing is OK,  make sure it isn't plugged.

Clay