Thanks for the tips, keep them coming!
For my nucs, I usually start off with the entrances reduced to 9mm x 9mm to keep the robbing to a minimum. However until they become queen right, or have more bees, my nucs don’t seem to do much guarding. That gives the moths an opportunity to get in after dark.
More bees is a good idea. The nuc with the moths is weaker than my other splits, probably 2 frames of bees at best. I may go with more bees after giving the nuc a few more days to mature. The queen cells just hatched a few days ago.
Most of my frames are now plastic foundation, so that helps when I have to mechanically control the moths. Squish, squish, splat!
Aroma at the entrance is an intriguing idea! I had never heard of, or thought of that, idea before. Thanks, I like that idea!