Control of <i>Varroa destructor</i> Mite Infestations at Experimental Apiaries Situated in Croatia

Experimental varroacidal treatments of honey bee colonies were conducted on five apiaries (EA1&#8722;EA5) situated at five different geographical and climatic locations across Croatia. The aim of this study was to assess the comparative efficacy of CheckMite+ (Bayer, Germany), Apiguard (Vita Eur...

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Main Authors: Ivana Tlak Gajger, Lidija Svečnjak, Dragan Bubalo, Tomislav Žorat
Format: Article
Language:English
Published: MDPI AG 2019-12-01
Series:Diversity
Subjects:
Online Access:https://www.mdpi.com/1424-2818/12/1/12
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author Ivana Tlak Gajger
Lidija Svečnjak
Dragan Bubalo
Tomislav Žorat
author_facet Ivana Tlak Gajger
Lidija Svečnjak
Dragan Bubalo
Tomislav Žorat
author_sort Ivana Tlak Gajger
collection DOAJ
description Experimental varroacidal treatments of honey bee colonies were conducted on five apiaries (EA1&#8722;EA5) situated at five different geographical and climatic locations across Croatia. The aim of this study was to assess the comparative efficacy of CheckMite+ (Bayer, Germany), Apiguard (Vita Europe Ltd.; England), Bayvarol, C, (Bayer, Germany), Thymovar, (Andrma BioVet GmbH, Germany), and ApiLife Var, (Chemicals Laif SPA; Vigonza, Italy) for controlling the honey bee obligatory parasitic mite <i>Varroa destructor</i> in different conditions in the field during summer treatment. The relative varroa mite mortality after treatments with applied veterinary medicinal products were EA1 (59.24%), EA2 (47.31%), EA3 (36.75%), EA4 (48.33%), and EA5 (16.78%). Comparing the relative efficacy of applied varroacides, the best effect was achieved with CheckMite+, and the lowest for honey bee colonies treated with Apiguard (statistically significant difference was confirmed; <i>p</i> &lt; 0.05). Considering the lower efficacy of thymol-based veterinary medicinal products observed on all EA in these study conditions, it may be concluded that their use is limited under different treatment regimes. Despite unfavourable weather and environmental conditions, with exceptions of EA5/EA5&#8242; and EA1, the relative varroacidal efficacy of authorized veterinary medicinal product treatments in moderately infested honey bee colonies ensured normal overwintering and colony development during next spring.
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spelling doaj.art-db11adba52624d4585bfd144a910b4672022-12-22T02:10:17ZengMDPI AGDiversity1424-28182019-12-011211210.3390/d12010012d12010012Control of <i>Varroa destructor</i> Mite Infestations at Experimental Apiaries Situated in CroatiaIvana Tlak Gajger0Lidija Svečnjak1Dragan Bubalo2Tomislav Žorat3Department for Biology and Pathology of Fish and Bees, Faculty of Veterinary Medicine, University of Zagreb, 10000 Zagreb, CroatiaDepartment of Fisheries, Apiculture, Wildlife Management and Special Zoology, Faculty of Agriculture, University of Zagreb, 10000 Zagreb, CroatiaDepartment of Fisheries, Apiculture, Wildlife Management and Special Zoology, Faculty of Agriculture, University of Zagreb, 10000 Zagreb, CroatiaVeterinary ambulance Obrovac d.d., 23450 Obrovac, CroatiaExperimental varroacidal treatments of honey bee colonies were conducted on five apiaries (EA1&#8722;EA5) situated at five different geographical and climatic locations across Croatia. The aim of this study was to assess the comparative efficacy of CheckMite+ (Bayer, Germany), Apiguard (Vita Europe Ltd.; England), Bayvarol, C, (Bayer, Germany), Thymovar, (Andrma BioVet GmbH, Germany), and ApiLife Var, (Chemicals Laif SPA; Vigonza, Italy) for controlling the honey bee obligatory parasitic mite <i>Varroa destructor</i> in different conditions in the field during summer treatment. The relative varroa mite mortality after treatments with applied veterinary medicinal products were EA1 (59.24%), EA2 (47.31%), EA3 (36.75%), EA4 (48.33%), and EA5 (16.78%). Comparing the relative efficacy of applied varroacides, the best effect was achieved with CheckMite+, and the lowest for honey bee colonies treated with Apiguard (statistically significant difference was confirmed; <i>p</i> &lt; 0.05). Considering the lower efficacy of thymol-based veterinary medicinal products observed on all EA in these study conditions, it may be concluded that their use is limited under different treatment regimes. Despite unfavourable weather and environmental conditions, with exceptions of EA5/EA5&#8242; and EA1, the relative varroacidal efficacy of authorized veterinary medicinal product treatments in moderately infested honey bee colonies ensured normal overwintering and colony development during next spring.https://www.mdpi.com/1424-2818/12/1/12<i>apis mellifera</i><i>varroa destructor</i>experimental apiariesvarroacidal efficacyvmp
spellingShingle Ivana Tlak Gajger
Lidija Svečnjak
Dragan Bubalo
Tomislav Žorat
Control of <i>Varroa destructor</i> Mite Infestations at Experimental Apiaries Situated in Croatia
Diversity
<i>apis mellifera</i>
<i>varroa destructor</i>
experimental apiaries
varroacidal efficacy
vmp
title Control of <i>Varroa destructor</i> Mite Infestations at Experimental Apiaries Situated in Croatia
title_full Control of <i>Varroa destructor</i> Mite Infestations at Experimental Apiaries Situated in Croatia
title_fullStr Control of <i>Varroa destructor</i> Mite Infestations at Experimental Apiaries Situated in Croatia
title_full_unstemmed Control of <i>Varroa destructor</i> Mite Infestations at Experimental Apiaries Situated in Croatia
title_short Control of <i>Varroa destructor</i> Mite Infestations at Experimental Apiaries Situated in Croatia
title_sort control of i varroa destructor i mite infestations at experimental apiaries situated in croatia
topic <i>apis mellifera</i>
<i>varroa destructor</i>
experimental apiaries
varroacidal efficacy
vmp
url https://www.mdpi.com/1424-2818/12/1/12
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