Maintain strong colonies to prevent infestation

Keep colonies populous and healthy so worker bees can patrol every comb surface, detecting and removing wax moth eggs and small larvae before they establish. A strong colony with bees covering all frames is the single most effective defense against wax moths in active hives.

Why It Works

Honey bees actively police their comb. Guard and house bees detect wax moth eggs by antennation and remove them. In a strong colony with 40,000-60,000 bees, every cell is visited frequently enough that moth larvae rarely survive past first instar. Weak colonies with unpatrolled comb create the opportunity moths exploit.

Tips

• Remove empty supers from hives that do not have enough bees to cover them — excess comb space invites moth establishment
• Requeen colonies with failing queens promptly, as brood breaks reduce population and leave comb undefended
• Combine weak colonies in autumn rather than overwintering them separately, which reduces both comb exposure and winter losses
• Inspect bottom boards for wax moth frass (dark granular debris) as an early warning sign