Silent Destroyers: Why Beekeepers Must Stay Vigilant Against Wax Moths

Wax moths may seem like minor pests, but for beekeepers, they can quickly turn stored frames and weak colonies into a disaster. Both small wax moths (Achroia grisella) and large wax moths (Galleria mellonella) are relentless invaders that feed on beeswax, pollen, and debris inside the hive. Their larvae tunnel through combs, leaving behind a webbed mess that weakens hive structure and disrupts colony health.

The Damage Wax Moths Can Do

Wax moths target weak or dead colonies, but they don’t stop there. If left unchecked, they can:

✔️ Destroy stored frames – Larvae burrow through comb, making them unusable.

✔️ Weaken bee colonies – Their tunnelling stresses bees and forces them to work harder on repairs.

✔️ Harm honey production – Moths reduce the amount of usable comb for brood and honey storage.

✔️ Contaminate equipment – Heavy infestations can ruin wooden hive parts with their sticky silk tunnels.

Preventing Wax Moth Infestations

A strong, healthy colony is the best defense, but additional steps can help:

🔹 Keep colonies strong – Weak hives are the first to fall. Ensure your bees have enough food, a productive queen, and proper ventilation.

🔹 Store frames properly – Freeze stored frames for at least 48 hours to kill any eggs and larvae. Keep them wrapped in plastic foil in well-ventilated, moth-proof storage.

🔹 Regular inspections – Look for signs of larvae, webbing, and frass (droppings) in unused or neglected frames.

🔹 Clean up deadouts quickly – If a colony dies, remove comb and clean hive components before moths move in.

🔹 Use moth deterrents – PDB (paradichlorobenzene) crystals can be used for stored equipment (but never inside live hives). Some beekeepers use strong essential oils like thyme or peppermint to repel moths naturally.

Act Now Before It’s Too Late!

Wax moths are opportunistic, and once they establish themselves, they spread fast. Whether you're a backyard beekeeper or managing hundreds of hives, keeping these pests in check is essential for colony health, honey production, and equipment longevity. Stay proactive, and don’t let wax moths turn your hard work into a webbed disaster!

👉 Have you battled wax moth infestations? Share your prevention tips in the comments below!