Sometimes it’s your fault for spacing frames too far apart; sometimes the bees just overdo it for reasons of their own.
They build cross-comb in the form of towers between frames or connecting outer frames to hive walls. Or they create honey storage areas that are too deep, or comb with wavy, billowing contours.
Cross-comb is not a problem for the bees—just for YOU, the beekeeper. Therefore, it is your job to correct such flights of fancy to make sure that the comb on every frame is of regular depth.
To sculpt comb that is out of line, especially during the initial comb-building time when new foundation is present, I use one of my essential beekeeping tools: a serrated knife.The blade should be very thin, and the teeth need not be large.
My best ol’ serrated knife (top left in the photo) is a permanent part of my beekeeping tool box.
It was a thrift-shop acquisition, but you can also find new ones to buy—they’re commonly used to cut bread or any produce with a hard outer layer and softer interior (cucumbers, tomatoes, limes) or delicate items that could be crushed by cutting with a straight-bladed knife.
You might find such excessive comb structures throughout the season, so have this knife handy to keep your WILD and WONKY comb under control.