I was wondering what this might mean? I noticed 8-10 1/2" diameter gray mold spots growing on the bottom board (SBB) of 1 hive this morning when I changed the sticky board.
I've also noticed that this hive has had water condensing under the lid, and dripping down thru the vent slot in the inner cover in small qtys since last fall when it hadn't even rained here yet. There has been constant heavy condensation on the Bottom Board for some time now. I wipe it off every week or so.
This hive also brings in far more pollen than the other hives. I removed 5 full frames of bee bread when I condensed this hive in Nov. And they had plenty more - more pollen than honey. This hive produces so much pollen, that I bought a pollen trap this winter in preparation for next season.
I did a full inspection and alcohol wash of this hive last week. Mite count was 1. Brood nest was 3.5 frames. Everything looked very healthy - to my eyes. Lots of bees, comb being drawn in super, so I added the remaining frames.
Hive is 10 fr super over a 10 deep.
It's been raining here every few days, then clearing to mid 60's F, sunny, and drying out for a few days. Nothing unusual weather wise. We get about 15 total inches rain per year here.
Should I worry about this? Your thoughts?