Regional Differences in Wasp Seasons Revealed: 'Wasp Occurrence Index' Updated for 2026 to Show Local Wasp Hazards at a Glance

Sharing Technology Inc., operator of the comprehensive lifestyle troubleshooting platform 'Seikatsu 110-ban', has launched the '2026 Wasp Occurrence Index' on its wasp exterminator matching service 'Hachi 110-ban'. The company holds data from over 300,000 wasp extermination consultations nationwide and has been publishing the index since 2023 to raise public awareness. This year, updates began on June 5th, providing the latest regional wasp occurrence information continuously during the active season from June to October. An analysis of the 2025 data revealed distinct regional characteristics. The wasp season in Hokkaido is heavily concentrated in the spring and summer, likely because the period suitable for wasp activity is short in Hokkaido, where temperatures remain low throughout the year. In contrast, the warmer Kyushu region sees a higher proportion of consultations from October to December compared to other regions, indicating that the season lasts until late autumn. The analysis also focused on the types of wasps in different regions. There was a trend where areas with lower population density had a higher percentage of consultations regarding hornets (Vespa), with Tochigi Prefecture having the highest proportion at 85.7%. Conversely, areas with high population density showed a higher percentage of paper wasps. It is speculated that paper wasps, which build smaller nests and are slightly less aggressive than hornets, are more adaptable to urban environments. The 'Wasp Occurrence Index' helps people understand the current level of wasp danger and can be utilized to check the situation around homes or travel destinations.