Guernsey Hornets Double: Invasive Species Threatens Bees

Guernsey has experienced a significant surge in Asian hornet nests this season, with spotters reporting over 30 discoveries, doubling the number found in 2025. This invasive species is known for its aggressive predation on various insects, with honey bees being a primary target, accounting for 39% of their diet. The States of Guernsey is actively addressing the escalating problem by tracking hornets back to their nests, which are then treated with a powder-based pesticide. Annelotte Daas-Jehan, invasive species officer, expressed concern but noted the proactive measures allow for population control. Figures indicate 44 nests were found from March 2026 to the present, a substantial increase from previous years. This rise mirrors a broader trend of increasing Asian hornet populations across Europe, placing pressure on authorities to implement control strategies. The current strategy focuses on eliminating queens in the spring and managing nests to 'flatten the curve' of population growth. Public assistance is crucial, with residents urged to report any sightings of nests or hornets, particularly on flowering plants like Fatsia japonica and camellias.