What Lure to Use and When
For Yellow-legged Asian Hornets (Vespa velutina)
Asian hornet behaviour changes throughout the season, so the lure you use and when you use it really matters.
Early Season (Spring) – Queen TRAPPING
Timing: As temperatures rise and blossoms appear (varies by region).
Objective: Detect queens and early activity in your area.
Lure type: Protein / Fermenting Fruit Baits (not sweet syrups)
Examples:
Fermented fruit mix (apple/pear/raspberry + sugar + a small amount of yeast)
Beer + sugar
Avoid: Pure sugary syrups – these may attract bees and beneficial queens.
Placement for early season:
Away from hives (100–200m distance is ideal)
At head height or slightly higher, in sheltered positions.
Why use this lure type? Queens are attracted to fermenting/protein scent as they search for energy & nest-starting resources.
Do not use sweet fruit syrups at this stage — this risks bycatch of native beneficial queens.
Mid Season (Summer) – Worker Foraging & Nest Expansion
Timing: Once first workers are confirmed in your area.
Objective: Intercept workers and reduce hawking pressure later in the season.
Lure: Sweet / Sugar-based fruit lures
Examples:
Commercial hornet lure (if available)
Fermented fruit + sugar + yeast
Dark beer + sugar + fruit juice (not citrus)
Placement:
Edge of the apiary, orchard edges, woodland margins.
Avoid placing directly beside hive entrances at this stage.
Why: Workers forage for carbohydrates to fuel flight — sweet scents draw them strongly.
Late Season (Late Summer / Autumn) – Nectar Forage & Protein Hunt
Timing: When hornets begin hawking bee hives or when nectar flow drops.
Objective: Reduce pressure on colonies during peak predation.
Lure: Strong sweet lures (same as mid-season, renewed frequently)
Placement:
Around the apiary perimeter (10–50m away) to draw hornets away from hive entrances.
Only move traps close to hives once hawking is active.
Why: Colonies are vulnerable at this stage. Correct placement protects bees and keeps flight lines clear.
Important Notes
Refresh lures every 5–10 days (in warm weather more often if required)
Do not trap too early in spring as risk to native wasp queens and bumble bees
Report sightings to your local Yellow-legged hornet action team
Do not use pure syrups that may attract bees
Place traps at height 1–2m
Avoid trapping at hive entrances before hawking starts.