Treatments For Varroa Archives - Scientific Beekeeping https://scientificbeekeeping.com/varroa-management/treatments-for-varroa/ Beekeeping Through the Eyes of a Biologist Sun, 14 Apr 2024 14:54:39 +0000 en-US hourly 1 Testing Cotton Matrices for OAE https://scientificbeekeeping.com/testing-cotton-matrices-for-oae/ Wed, 29 Mar 2023 23:01:38 +0000 https://scientificbeekeeping.com/?p=8009 Contents The Fabrics to Test Preparation A Field Trial Results Discussion   TESTING COTTON MATRICES FOR OAE Randy Oliver ScientificBeekeeping.com First published in ABJ January 2023   I continue to look for improved methods for application of extended-release oxalic acid (OAE), and thought that perhaps there might be an inexpensive, fully biodegradable all-cotton fabric that […]

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]]> Thymol — A new application method? Part 2 https://scientificbeekeeping.com/thymol-a-new-application-method-part-2/ Fri, 13 Jan 2023 06:22:05 +0000 https://scientificbeekeeping.com/?p=7937 Contents Extended-release thymol 1 The optimal release rate and placement of thymol 1 What’s The Optimal Dose?. 2 Our Field Testing. 3 The Dose-Response Curve. 12 Discussion. 12 Citations and notes 13   Thymol — A new application method? Part 2 First published in ABJ in December 2022 Randy Oliver ScientificBeekeeping.com   I do a […]

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]]> Thymol — a New Application Method? Part 1 https://scientificbeekeeping.com/thymol-a-new-application-method-part-1/ Fri, 13 Jan 2023 06:08:15 +0000 https://scientificbeekeeping.com/?p=7922 Contents “Off-Label” use of thymol 4 Thymol products for varroa control 5 Understanding Thymol 6 Reaction to the delivery matrix by the bees 6 Thymol in Shop Towels. 7 Removal and dispersion of thymol matrices by the Bees 9 Extended-Release Thymol?. 11 A Thicker Matrix. 11 moving ahead to 2022. 15 Citations and notes 15 […]

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]]> Formic Pro in Hot Weather — Slowing the Rate of Vapor Release https://scientificbeekeeping.com/formic-pro-in-hot-weather-slowing-the-rate-of-vapor-release/ Fri, 13 Jan 2023 05:52:12 +0000 https://scientificbeekeeping.com/?p=7914 Contents Hard “Flash Treatment” vs Slow-Release. 1 Flash Treatments 1 Extended-Release Application. 2 our Follow-up experiments. 3 But Did the Wrapped Strips Kill Mites?. 8 Discussion. 9 Citations and Notes 9   Formic Pro in Hot Weather — Slowing the Rate of Vapor Release Randy Oliver ScientificBeekeeping.com First published in ABJ in October 2022   […]

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]]> Formic Pro and Queens in Hot Weather https://scientificbeekeeping.com/formic-pro-and-queens-in-hot-weather/ Fri, 13 Jan 2023 05:40:34 +0000 https://scientificbeekeeping.com/?p=7897 Contents Formic for mite management 1 A trick for using formic pro on weak colonies 2 Queen loss in hot weather 5 Why would queens be more susceptible to formic than workers?. 6 A test of queen loss in tiny colonies. 7 Taking advantage of opportunity. 10 Trial #1 — Would foil covers reduce queen […]

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]]> 2022 Extended-release Oxalic (OAE) Update Part 2 https://scientificbeekeeping.com/2022-extended-release-oxalic-oae-update-part-2/ Thu, 11 Aug 2022 15:58:08 +0000 https://scientificbeekeeping.com/?p=7776 Contents An additional test of matrices and OA:gly ratios. 1 Cardboard Strips vs. Sponges. 3 Compostability of spent sponges. 3 A winter field trial 4 Methods. 5 Results. 9 Discussion. 11 The Elephant in the Room.. 12 Reality Check. 12 A possible easy solution for getting us legal 13 Citations and notes. 15     […]

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]]> Instructions for extended-release oxalic acid https://scientificbeekeeping.com/instructions-for-extended-release-oxalic-acid/ Mon, 04 Jul 2022 16:28:05 +0000 https://scientificbeekeeping.com/?p=7760 Extended-release oxalic acid for varroa management This method of application of oxalic acid is not yet approved by the EPA, so the instructions below are intended only for researchers having Pesticide Research Authorizations, Experimental Use Permits, or other permissions from their State Lead Agencies. FYI, the EPA does not require an Experimental Use Permit to […]

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]]> A Test of Thermal Treatment for Varroa: Part 2 https://scientificbeekeeping.com/a-test-of-thermal-treatment-for-varroa-part-2/ Wed, 25 Aug 2021 04:33:05 +0000 https://scientificbeekeeping.com/?p=7278 Beekeeper-funded Research A Test of Thermal Treatment for Varroa Part 2 First published in ABJ April 2021 Randy Oliver ScientificBeekeeping.com Last month I covered the theory of using thermal treatment (hyperthermia) to control varroa, and some of the designs of devices on the market.  I’d like to now answer some questions regarding thermal treatment. I […]

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]]> A Test of Thermal Treatment for Varroa: Part 1 https://scientificbeekeeping.com/a-test-of-thermal-treatment-for-varroa-part-1/ Tue, 25 May 2021 06:06:52 +0000 https://scientificbeekeeping.com/?p=7228 Beekeeper-funded Research A Test of Thermal Treatment for Varroa: Part 1 First published in ABJ March 2021 Randy Oliver ScientificBeekeeping.com   Last month I wrapped up the report on my testing of mite treatments suitable for application during a honey flow.  A number of beekeepers have also asked me about using thermal treatment.  I found […]

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]]> Oxalic crystals on bees after vaporization https://scientificbeekeeping.com/oxalic-crystals-on-bees-after-vaporization/ Thu, 25 Mar 2021 17:25:53 +0000 https://scientificbeekeeping.com/?p=7201 Crystals from oxalic acid vaporization on bees’ bodies Randy Oliver February 2020 In order to determine how OA crystals settled on bees’ bodies after an OA vaporization, I set a graduated microscope slide and a number of dead bees under a 16-oz inverted plastic cup.  I injected OA vapor briefly into a hole at the […]

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