Predatory behavior, nesting habits, and impacts on honey bees (Apis mellifera) of an invasive hornet (Vespa tropica) on the island of Guam
Fig 5
Seasonal pattern of V. tropica adult activity.
Number of reports per month and year (inset) were summed across reporting constituencies. Beekeepers reported hornet sightings in apiaries to the Guam Beekeepers Association; their reports covered 2017–2024 and ranged from single and multiple-hornet attacks on colonies to no attack (e.g., flying around the apiary). Outside of apiaries, the general public reported adult hornet sightings to the Pest Hotline; those reports covered 2020–2024.