[Breakfast with the Bees]

I just noticed mold today, too. Wiped it off the inner cover, and replaced the body that I've been using on top of the inner cover with my mason jar feeder. It has been very damp and rainy here.

Looking forward to word from the more experienced.

 

[RayMarler]

Yes, sounds like a ventilation problem. Opening up the SBB like you did should help. Propping up the top lid with a twig or ice cream stick should help also.

The feeder should be cleaned out and syrup changed. Only fill it with enough that the bees will empty it in 3 to 5 days will help prevent the prob there.

If they have stores to last through spells of bad weather then you might consider taking the feeder off? The feeder adds to moisture in the hive and with the lack of ventilation, I'm sure it contributed to some of the mold buildup you are experiencing, especially if it was on during cooler weather.