Thymol

In the 1990s, the Bee Research Centre took part in a screening programme testing the potential effectiveness of over 100 essential oils and essential oil components against the varroa mite. Although sage, hyssop and thyme oils proved interesting, only thymol has been used in acaricide products. Thymol treatments require little effort, and there are a variety of preparations on the market. The advantages and drawbacks of thymol use are listed in the articles "Apilife VAR: A new varroacide with thymol as the main ingredient" and "THYMOVAR for Varroa control".

Use of essential oils for the control of Varroa jacobsoni (Oud.) in honey bee colonies (PDF, 1 MB, 20.01.2017)
A. Imdorf, S. Bogdanov, R. Ibáñez Ochoa, N. W. Calderone (1999)

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Ingenhoff J.-E., Mühlemann M., Ackermann-Gäumann R., Moor D., Berger T.

Risk assessment of the alimentary transmission of tick-borne encephalitis viruses from goats to humans by milk and milk products in Swiss alpine regions.

Archiv für Lebensmittelhygiene, 71, (5), 2020, 110-114.

Link: https://journal-food-safety.de/Article-Details/311/

Zusammenfassung:

Viral zoonosis tick-borne encephalitis (TBE) is usually transmitted to humans by the bite of an infected tick. Another possible way to become infected with the viral pathogen is through the consumption of raw milk and raw milk products. Based on the seroprevalence of antibodies against TBE viruses in goats in the Valais canton in a recently published study, a risk assessment for the viral contamination of goat milk was performed for this area. The probability of virus-contaminated milk was calculated to range between 0.0012% and 0.024% of household milk.

ISSN Print: 0003-925X
Digital Object Identifier (DOI): https://doi.org/10.2376/0003-925X-71-110
Publikations-ID (Webcode): 44780 Per E-Mail versenden

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Apilife VAR: A new varroacide with thymol as the main ingredient (PDF, 103 kB, 20.01.2017)
A. Imdorf, S. Bogdanov, V. Kilchenmann, C. Maquelin (1994)

"THYMOVAR" for Varroa control (PDF, 75 kB, 27.01.2017)
F. Bollhalder (1998)

Although the use of thymol leads to residues in the wax and honey, these are negligible from a toxicological viewpoint. Since about 2008 the use of thymol-based products has been declining in Switzerland, and beekeepers making use of these products have tended to experience greater winter losses than those using e.g. formic acid.

Thymol residues in wax and honey after Apilife VAR treatment (PDF, 757 kB, 14.09.2016)
S. Bogdanov, A. Imdorf, V. Kilchenmann (1998)

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Risk assessment of the alimentary transmission of tick-borne encephalitis viruses from goats to humans by milk and milk products in Swiss alpine regions.

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Thymol

Risk assessment of the alimentary transmission of tick-borne encephalitis viruses from goats to humans by milk and milk products in Swiss alpine regions.