Latest Cover

Online Office

Contact Us

Issue:ISSN 2095-1353
           CN 11-6020/Q
Director:Chinese Academy of Sciences
Sponsored by:Chinese Society of Entomological;institute of zoology, chinese academy of sciences;
Address:Chaoyang District No. 1 Beichen West Road, No. 5 hospital,Beijing City,100101, China
Tel:+86-10-64807137
Fax:+86-10-64807137
Email:entom@ioz.ac.cn
Your Position :Home->Past Journals Catalog->2012年49 No.5

Effectiveness of herbal essential oils as fumigants tocontrol Varroa destructor in laboratory assays
Author of the article:
Author's Workplace:
Key Words:honeybee,Varroa destructor,herbal essential oils,acaricidal activity
Abstract:      The effects of using herbal essential oils as fumigants to control Varroa destructor Anderson & Trueman,and    the toxicity of these compounds to honeybees,were assayed under laboratory conditions. The results showed that all the  oils tested were,to some extent,toxic to honeybees but anise oil,clove oil and cinnamon oil caused 92. 5% ,54% and   12% mite mortality respectively with no toxicity to bees after 48 h. There were significant differences in toxicity between the three oils and the control (P < 0. 05) . The acute toxicity of anise oil and clove oil to mites was further evaluated by  estimating LD50 values. The LD50 values of anise oil for V. destructor and A. mellifera were 0. 949 μL and 4. 033 μL, respectively,and those of clove oil were 0. 795 μL and 1. 965 μL,respectively. Anise oil had a higher selective ratio after
48h ( LD50 to honeybees /LD50 to mites = 4. 250) . The chemical composition of anise oil and clove oil were analyzed and  identified by gas chromatography - mass spectrometry ( GC-MS) . The most abundant compound in anise oil was ( E) - anethole (88. 72% ) . The main components of clove oil were Eugenol (68. 28% ) and Caryophyllene (20. 79% ) . These  results show that anise oil and clove oil are promising acaricides that could be used for controlling Varroa mites in  beehives.
CopyRight©2024 Chinese Journal of Aplied Entomology