期刊
PEST MANAGEMENT SCIENCE
卷 -, 期 -, 页码 -出版社
JOHN WILEY & SONS LTD
DOI: 10.1002/ps.7891
关键词
Apis mellifera; Varroa destructor; Apiarium; efficacy; phenotypic resistance
Among the tested Varroacides, Apivar demonstrated the highest efficacy (89%) in a 24-hour assessment, while Bayvarol (58%), Apistan (44%), and CheckMite (6%) showed lower efficacy. The Apiarium technique revealed a case of phenotypic resistance to Bayvarol, Apistan, and CheckMite in the mite population evaluated, while CheckMite was found to be toxic to bees in the Mason jar method. The study concluded that the Apiarium methodology provided a reliable technique to measure Varroacide efficacy and identify phenotypic resistance in V. destructor.
BACKGROUND: Varroa mite, Varroa destructor, is a major threat for honey bee, Apis mellifera, colonies. Beekeepers have used synthetic Varroacides against Varroa mite for decades, but resistance to organophosphates, pyrethroids and formamidine has been reported in many locations worldwide. The goals of this study were to develop a reliable bioassay to assess efficacy and phenotypic resistance to commercial Varroacides. In this study, efficacy and Varroa resistance was evaluated using the Apiarium technique in comparison to the Mason jar method.RESULTS: Among tested Varroacides, a high efficacy (89%) for Apivar was identified when compared to Bayvarol (58%), Apistan (44%) and CheckMite (6%), in a 24 h assessment. We also found that CheckMite was toxic to bees in the Mason jar method. In addition, the Apiarium technique revealed a case of phenotypic resistance to Bayvarol, Apistan and CheckMite in the mite population evaluated.CONCLUSION: A laboratory protocol was developed using the Apiarium method to evaluate Apivar efficacy. Collectively, the findings indicated that the Apiarium methodology provided a reliable technique to measure Varroacide efficacy and determine the presence of phenotypic resistance in V. destructor.(c) 2023 The Authors. Pest Management Science published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.
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