The effects of several honey bee management tools on tracheal mite (Acarapis woodi) populations were evaluated in southern Louisiana. Both domestic and ARS Primorsky honey bee colonies were evaluated after: 1) a single application of Beltsville formic acid (BFA) to hives with a solid bottom board, 2) a single application of BFA to hives with a screen bottom board, 3) no treatment with a screen bottom board, or 4) no treatment with a solid bottom board. Domestic colonies in hives with screen bottom boards or hives with solid bottom boards maintained high levels of tracheal mite infestation throughout the experiment. However, in domestic colonies, the use of a combination of BFA and a screen bottom board reduced tracheal mite infestation levels by 47% after three months and maintained the lowered levels for an additional three months. The use of BFA and a solid bottom board resulted in a 37% reduction of tracheal mites after three months, but levels then increased to a damaging level by six months. Tracheal mite populations remained very low in Primorsky colonies, regardless of the management tools employed. Several conclusions are apparent: 1) The ARS Primorsky honey bees tested exhibited strong resistance to tracheal mites and do not require treatment for tracheal mite control, 2) the commercial honey bee stock tested displayed high susceptibility to tracheal mites, 3) one summer treatment of BFA did not adequately control tracheal mite populations in highly susceptible honey bee stock, 4) BFA showed moderate tracheal mite control and may be useful in Integrated Pest Management (IPM) programs designed to control the most serious honey bee pests and diseases, and 5) while screen bottom boards did not suppress tracheal mite populations, they enhanced the effective-ness of BFA in tracheal mite control.
KEYWORDS: Acarapis woodi/tracheal mite/ARS Primorsky/ resistance/formic acid/screen/IPM/ far-eastern Russia/ USA
Please place treatment free research here. There's a lot of research spread around the Internet that is related to treatment free beekeeping. This forum is an effort to try and consolidate some of this, especially new research as it becomes available.
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- Backyard Beekeeper
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Beekeeper, Meadmaker, Teaboy, and Gopher. Richmond, VA
Re: An Evaluation of Far-eastern Russian Honey Bees and Other Methods for the Control of Tracheal Mites
Thanks for sharing this article.
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