Thymol

thymolbehandlung_20170128

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)

Matthias Suter

Matthias Suter

Picture


Dr. sc. nat.

Research Group

  • 22.00.17.06 Forage Production and Grassland Systems

Role

Project leader Forage Production and Grassland Systems

Organisational Unit

Forage Production / Grassland

Matthias Suter

Agroscope
Reckenholzstrasse 191
8046 Zürich
Switzerland

Phone +41 58 46 87590

Location Reckenholz

Matthias Suter

Activities

Research interests:

• Functional biodiversity and symbiotic N2 fixation in grass-legume mixtures

• Sustainable management and biodiversity preservation of agricultural grassland

• Development, measurement and statistical analysis of plant model systems of intermediate complexity

• Drought stress effects on stability of agricultural grasslands

• Mechanisms that cause plant community changes, especially interactions between management and abiotic conditions (soil resources)

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) 

https://www.agroscope.admin.ch/content/agroscope/en/home/themen/nutztiere/bienen/bienenkrankheiten/varroa/varroa-bekaempfung/thymol.exturl.html/aHR0cHM6Ly9pcmEuYWdyb3Njb3BlLmNoL2VuLVVTL1BhZ2UvTW/l0YXJiZWl0ZXI_YWdyb3Njb3BlSWQ9NTIwNQ==.html