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Kovačić M, Uzunov A, Tlak Gajger I, Pietropaoli M, Soroker V, Adjlane N, Benko V, Charistos L, Dall’Olio R, Formato G, Hatjina F, Malagnini V, Freda F, Otmi A, Puškadija Z, Villar C, Büchler R. Honey vs. Mite-A Trade-Off Strategy by Applying Summer Brood Interruption for Varroa destructor Control in the Mediterranean Region. INSECTS 2023; 14:751. [PMID: 37754719 PMCID: PMC10531922 DOI: 10.3390/insects14090751] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Revised: 09/03/2023] [Accepted: 09/05/2023] [Indexed: 09/28/2023]
Abstract
In this study, we investigated the effect of queen caging on honey bee colonies' post-treatment development and the optimal timing of method application on honey production during the main summer nectar flow. We conducted the study in nine apiaries (N = 9) across six Mediterranean countries, with a total of 178 colonies. The colonies were divided into three test groups: QC1, QC2, and C. The QC1 group involved queens caged for a total of 28 days before the expected harvesting day. In the QC2 group, queens were caged for 28 days, but only 14 days before the expected harvesting day. The C group consisted of queens that were not caged, and the colonies received common local treatments. In both the QC1 and QC2 groups, the colonies were treated with a 4.2% oxalic acid (OA) solution by trickling after the queen release. Our findings revealed no significant adverse effects (p > 0.05) on colony strength at the end of the study resulting from queen caging. However, significantly lower amounts of honey were extracted from the QC1 group compared to both the QC2 group (p = 0.001) and the C group (p = 0.009). Although there were no initial differences in Varroa destructor infestation between the groups, ten weeks later, a significantly higher infestation was detected in the C group compared to both the QC1 group (p < 0.01) and the QC2 group (p = 0.003). Overall, our study demonstrates that queen caging, in combination with the use of OA, is an effective treatment for controlling V. destructor. However, the timing of caging plays a crucial role in honey production outcomes.
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Affiliation(s)
- Marin Kovačić
- Faculty of Agrobiotechnical Sciences Osijek, J.J. Strossmayer University of Osijek, V. Preloga 1, 31000 Osijek, Croatia; (M.K.); (Z.P.)
| | - Aleksandar Uzunov
- Faculty of Agricultural Sciences and Food, Ss. Cyril and Methodius University in Skopje, 1000 Skopje, North Macedonia;
- State Key Laboratory of Resource Insects, Institute of Apicultural Research, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Ivana Tlak Gajger
- Department for Biology and Pathology of Fish and Bees, Faculty of Veterinary Medicine, University of Zagreb, Heinzelova ul. 55, 10000 Zagreb, Croatia;
| | - Marco Pietropaoli
- Istituto Zooprofilattico Sperimentale del Lazio e della Toscana “M. Aleandri”, Via Appia Nuova 1411, 00178 Rome, Italy; (M.P.); (G.F.)
| | - Victoria Soroker
- Agricultural Research Organization (ARO), The Volcani Center, 68 HaMacabim Road, Rishon LeZion 7505101, Israel; (V.S.); (A.O.)
| | - Noureddine Adjlane
- Department of Agronomy, Faculty of Science, University of Boumerdes, 35000 Boumerdes, Algeria;
| | - Valerija Benko
- Department for Biology and Pathology of Fish and Bees, Faculty of Veterinary Medicine, University of Zagreb, Heinzelova ul. 55, 10000 Zagreb, Croatia;
| | - Leonidas Charistos
- Department of Apiculture, Institute of Animal Sciences, Ellinikos Georgikos Organismos “DIMITRA”, 63 200 Nea Moudania, Greece; (L.C.); (F.H.)
| | | | - Giovanni Formato
- Istituto Zooprofilattico Sperimentale del Lazio e della Toscana “M. Aleandri”, Via Appia Nuova 1411, 00178 Rome, Italy; (M.P.); (G.F.)
| | - Fani Hatjina
- Department of Apiculture, Institute of Animal Sciences, Ellinikos Georgikos Organismos “DIMITRA”, 63 200 Nea Moudania, Greece; (L.C.); (F.H.)
| | - Valeria Malagnini
- Fondazione Edmund Mach, Centro Trasferimento Tecnologico, Via E. Mach, 1 San Michele all’Adige, 38098 Trento, Italy; (V.M.); (F.F.)
| | - Fabrizio Freda
- Fondazione Edmund Mach, Centro Trasferimento Tecnologico, Via E. Mach, 1 San Michele all’Adige, 38098 Trento, Italy; (V.M.); (F.F.)
| | - Asaf Otmi
- Agricultural Research Organization (ARO), The Volcani Center, 68 HaMacabim Road, Rishon LeZion 7505101, Israel; (V.S.); (A.O.)
| | - Zlatko Puškadija
- Faculty of Agrobiotechnical Sciences Osijek, J.J. Strossmayer University of Osijek, V. Preloga 1, 31000 Osijek, Croatia; (M.K.); (Z.P.)
| | - Claudio Villar
- Consejería de Agricultura de la Junta de Comunidades de Castilla La Mancha, 02600 Albacete, Spain;
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Döke MA, Frazier M, Grozinger CM. Overwintering honey bees: biology and management. CURRENT OPINION IN INSECT SCIENCE 2015; 10:185-193. [PMID: 29588007 DOI: 10.1016/j.cois.2015.05.014] [Citation(s) in RCA: 82] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2015] [Revised: 05/28/2015] [Accepted: 05/29/2015] [Indexed: 06/08/2023]
Abstract
In temperate climates, honey bees (Apis mellifera) survive the winter by entering a distinct physiological and behavioral state. In recent years, beekeepers are reporting unsustainably high colony losses during the winter, which have been linked to parasitization by Varroa mites, virus infections, geographic location, and variation across honey bee genotypes. Here, we review literature on environmental, physiological, and social factors regulating entrance, maintenance, and exit from the overwintering state in honey bees in temperate regions and develop a testable model to explain how multiple factors may be acting synergistically to regulate this complex transition. We also review existing knowledge of the factors affecting overwintering survival in honey bees and providing suggestions to beekeepers aiming to improve their colonies' overwintering success.
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Affiliation(s)
- Mehmet Ali Döke
- Department of Entomology, Center for Pollinator Research, Huck Institutes of the Life Sciences, Pennsylvania State University, United States.
| | - Maryann Frazier
- Department of Entomology, Center for Pollinator Research, Huck Institutes of the Life Sciences, Pennsylvania State University, United States
| | - Christina M Grozinger
- Department of Entomology, Center for Pollinator Research, Huck Institutes of the Life Sciences, Pennsylvania State University, United States
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Wehrenfennig C, Schott M, Gasch T, Düring RA, Vilcinskas A, Kohl CD. On-site airborne pheromone sensing. Anal Bioanal Chem 2013; 405:6389-403. [PMID: 23842897 DOI: 10.1007/s00216-013-7113-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2013] [Revised: 05/24/2013] [Accepted: 06/03/2013] [Indexed: 02/04/2023]
Abstract
Pheromones and other semiochemicals play an important role in the natural world by influencing the behavior of plants, mammals, and insects. In the latter case, species-dependent pheromone communication has numerous applications, including the detection, trapping, monitoring and guiding of insects, as well as pest management in agriculture. On-site sensors are desirable when volatile organic compounds (VOCs) are used as semiochemicals. Insects have evolved highly selective sensors for such compounds, so biosensors comprising complete insects, isolated organs or individual proteins can be highly effective. However, isolated insect organs have a limited lifetime as biosensor, so biomimetic approaches are needed for prolonged monitoring, novel applications, or measurements in challenging environments. We discuss the development of on-site biosensors and biomimetic approaches for airborne-pheromone sensing, together with biomimetic VOC sensor systems. Furthermore, the infochemical effect describing the anthropogenic contamination of the ecosystem through semiochemicals, will be considered in the context of novel on-site pheromone sensing-systems.
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