Efficacy and toxicity of varromed® used for controlling varroa destructor infestation in different seasons and geographical areas

Maja Ivana Smodiš Škerl*, Jorge Rivera-Gomis, Ivana Tlak Gajger, Jernej Bubnič, Gabriela Talakić, Giovanni Formato, Alessandra Baggio, Franco Mutinelli, Wim Tollenaers, Dries Laget, Valeria Malagnini, Livia Zanotelli, Marco Pietropaoli

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

VarroMed® is a soft acaricide registered for honey bees on the European Union market since 2017 for Varroa control. Researchers involved were partners of different countries of the Varroa control task force of the COLOSS Association. Our goal was to evaluate performances (acaricide efficacy and toxic effects on honey bees) of VarroMed® in different climatic conditions. Our results in the tested apiaries showed an efficacy ranging from 71.2 to 89.3% in summer/autumn, and from 71.8 to 95.6% in winter. No toxic effects on bees were observed, except in one apiary, where severe cold climatic conditions played a crucial role. The treatment could be efficiently applied in broodright as well as in broodless colonies. Integrated pest management (IPM) recommendations for beekeepers are provided in order to apply the best Varroa control protocol.

Original languageEnglish
Article number8564
JournalApplied Sciences (Switzerland)
Volume11
Issue number18
Early online date15 Sept 2021
DOIs
Publication statusFirst published - 15 Sept 2021
Externally publishedYes

Keywords

  • Brood interruption
  • Queen caging
  • Summer-autumn treatment
  • Varroa destructor
  • VarroMed®
  • Winter treatment

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