45th Apimondia Conress 2017, Istanbul, Turkey Vespa velutina in Europe Impact on honeybees, monitoring, sensivity and limits of detection and control methods Claire Villemant* & Quentin Rome** ©Rome Muséum national d’Histoire naturelle, Paris, France *ISYEB, UMR7205 CNRS, MNHN, UPMC, EPHE, ** PatriNat, UMS 2006– MNHN, AFB, CNRS Vespa velutina: a new hornet for Europe and Korea Image available at http://frelonasiatique.mnhn.fr • Before 2004: 22 Vespa species in Asia and only 2 in Europe • Introduction from China (near Shanghai) to Korea and France through horticultural trade. Rortaiset al. 2008; Rome et al. 2011; Arcaet al. 2015 Impact on honeybees ©Q Rome ©Q Rome • Asian bees have developed an efficient defensive heat-balling behaviour © P. Goetgheluck © INRA Bordeaux ©Rome • European honeybees stop foraging when facing hawking hornets (bee carpet) • Such paralysis behaviour can lead to bee colony’s death during winter Tan et al. 2007; Monceau et al 2013, Arcaet al 2014. Impact on honeybees ECOBEE project (INRA-CNRS South West of France since 2008): a long-term bee colony monitoring in intensive agroecosystems RISQAPI project (2013-2016): spatial relationships between use of pesticides and risks of bee colony decline Work task: Vespa velutina as stress factor: - assess hornet impacts (as predator and bee colony disruptor) in relation to bee colony health status (624 records, 90 days, 54 apiaries, 118 hives) - using BEEHAVE model of bee colony dynamics (Becher et al 2014) Colony can colapse : - when beehives are already weakened before hornet attack - when beehives react with strong paralysis behavior Requier et al (in progress) Monitoring French Vespa velutina website Biology Control Identification Reporting Documents Contact http://frelonasiatique.mnhn.fr Data : INPN (France) Monitoring Spread: DirecciónGeneral de Calidady Evaluación Ambientaly Medio Natural (Spain), 60-80 km/yr ICNF, NATIVA et SOS Vespa (Portugal), CARI et CiEi/ DGARNE (Belgium), CREA et Universitàde Torino (Italy), Rome et al 2009 R. Witt (Germany), Robinet et al 2016 NNSS et NBU (UK) Invasion progress from 2004 to 2016 Animation available at http://frelonasiatique.mnhn.fr Data : INPN (France) Monitoring Spread: DirecciónGeneral de Calidady Evaluación Ambientaly Medio Natural (Spain), 60-80 km/yr ICNF, NATIVA et SOS Vespa (Portugal), CARI et CiEi/ DGARNE (Belgium), CREA et Universitàde Torino (Italy), Rome et al 2009 R. Witt (Germany), Robinet et al 2016 NNSS et NBU (UK) 2017 MNHN survey validation protocol Record sheet - Identify species Public - Verificate data - Remove duplicate MNHN 30% of sighting Beekeepers, reports are invalid wasp controllers Local referents firemen, hunters (French sanitary Only workers and naturalists… organisations) viable colonies are registered in the database French - Cartography National Inventory - Research of Natural Heritage - Knowledge dissemination - Call to witness (survey in INPN database Rome & Villemant, regions not yet invaded) in press MNHN survey validation protocol Information leaflets in 13 European languages and in Korean Available at: http://frelonasiatique.mnhn.fr 30% of sighting https://sites.anses.fr/en/minisite/abeilles/ reports are invalid free-access-documents-0 MNHN survey validation protocol Male Female Adults : only workers are registered in the database sexual female Sept-Nov– May-June >30 mm, > 250 mg (dry) ©Goetgheluck worker (sterile) June-November < 250 mg (dry) e ©Rome m o R . Q • Worker sighting: a colony at < 2 km from capture point (foraging distance) • Sexual sighting: no proof of colony presence near the capture point sexuals can fly over much longer distances (> 40 km) Rome & Villemant, in press