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Informed Discussion of Beekeeping Issues and Bee Biology

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From:
Peter Loring Borst <[log in to unmask]>
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Informed Discussion of Beekeeping Issues and Bee Biology <[log in to unmask]>
Date:
Thu, 12 Jan 2017 07:57:21 -0500
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> The question that beekeepers have been asking: is there any similar miticides with different modes of actions in the tool box or in the pipeline to replace those failing ones due to resistance?

Many acaricides have been tried over the years. Spivak and Calderone listed these in 1995:

Efforts to control Varroa have focused on the evaluation of synthetic acaricides. Fluvalinate, flumethrin, amitraz, clofentezin, apitol, chlorobenzilate, and coumaphos have all been shown to provide effective control. 

Formic acid provides control of Varroa, as well as 2 other parasitic honey bee mites, Acarapis woodi and Tropilaelaps clareae . Calderone et al. found that clove oil, citronellal, and mixed terpenes posses significant acaricidal properties against A. woodi. 

Chiesa and Gal et aI. reported that thymol was effective against Varroa, although they both reported deleterious effects on bees. Colin demonstrated that essential oils of thyme, Thymus vulgaris, and sage, Salvia officinalis, effectively controlled Varroa, and Rickli et al. demonstrated that ApilifeVAR, a commercial Italian product containing thymol, was also effective. 

refs

Calderone, N. W., & Spivak, M. (1995). Plant extracts for control of the parasitic mite Varroa jacobsoni (Acari: Varroidae) in colonies of the western honey bee (Hymenoptera: Apidae). Journal of Economic Entomology, 88(5), 1211-1215.

Calderone, N. W., Bruce, W. A., Allen-Wardell, G., & Shimanuki, H. (1991). Evaluation of botanical compounds for control of the honey-bee tracheal mite, Acarapis woodi. American bee journal (USA).

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