Emergency Insect Care During Power Outages and Disasters | Temperature Management and Backup Power for Beetles and Stag Beetles
A guide to emergency response for beetles and stag beetles during power outages caused by typhoons or earthquakes. Learn summer and winter temperature management, how to use portable power stations and generators, and a pre-preparation checklist.

Key Takeaways
A guide to emergency response for beetles and stag beetles during power outages caused by typhoons or earthquakes. Learn summer and winter temperature management, how to use portable power stations and generators, and a pre-preparation checklist.
Related Species
Risks of Power Outages on Insect Breeding
Sudden power outages caused by typhoons, earthquakes, or large-scale blackouts pose serious risks for insect breeders. Japanese beetles and stag beetles are cold-blooded animals that are directly affected by ambient temperature. In particular, high temperatures in summer and low temperatures in winter can be deadly.
When air conditioning shuts down during summer power outages, indoor temperatures can reach close to 40°C, causing fatal damage to adults within hours and to larvae and pupae within ten-plus hours. Conversely, during winter power outages, temperatures can drop near 0°C, and exotic species from tropical and subtropical regions face the risk of freezing to death.
This article explains preparations before power outages and emergency measures to take after they occur.
Summer Power Outage Measures: Preventing Heat-Related Deaths
Immediate Response (0-2 Hours After Power Outage)
- Close curtains and open windows: Block direct sunlight and use natural ventilation to slow the rise in room temperature
- Position ice packs around the enclosure: Place ice packs wrapped in towels beside or on top of the enclosure. Avoid direct placement as it can cool too rapidly.
- Prioritize pupae and pre-pupae enclosures: Individuals undergoing metamorphosis are most vulnerable to temperature changes, so prioritize cooling these enclosures first.
- Move to cooler locations such as basements or entryways: In apartment buildings, utilize rooms on the north side, areas near elevator lobbies, or other places with minimal temperature fluctuations.
Available Backup Power Sources
- Portable power stations (capacity 300Wh and above): Can power USB fans or small circulation fans. Can also be used to operate wine coolers (power consumption 50-80W) for short periods.
- Generators: The most reliable option for extended power outages. Must be installed outdoors due to noise and exhaust concerns. Difficult to use in apartment buildings.

