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Aktuelle Seite: Home Information - Wissen Bienengesundheit Varroa destructor Garedew, Assegid et al. (2001): The varroacidal action of propolis: a laboratory assay

Garedew, Assegid et al. (2001): The varroacidal action of propolis: a laboratory assay

Veröffentlicht: Sonntag, 17. Mai 2015 22:46 | Geschrieben von Super User | Drucken | E-Mail | Zugriffe: 5252
Garedew, Assegid et al. (2001): The varroacidal action of propolis: a laboratory assay


The varroacidal action of propolis: a laboratory assay
Assegid GAREDEW, Ingolf LAMPRECHT, Erik SCHMOLZ, Burkhard SCHRICKER


(Received 23 February 2001; revised 21 August 2001; accepted 16 October 2001)

Abstract
– The action of propolis (bee glue) against the ectoparasitic mite
Varroa destructor
Ander-
sonandTruemanhasbeeninvestigatedandshowednarcoticandlethaleffects.Lengthofnarcosisand
rate of mortality depended on the extraction procedure, concentration of propolis and contact time.
Propolis extracted with 70% ethanol was found to be highly toxic, a 10% (w/v) propolis resulting in
100%mortalitywithabriefcontacttimeof5s.Inaddition,theeffectofpropolisonthemetabolicrate
of the mites has been investigated calorimetrically. Even sublethal propolis concentrations without
varroacidal effects and of only short lasting narcotic effects resulted in a significant reduction in the
heat production rate, indicating weakening of the mites.


Varroa destructor / varroatosis / varroacides / propolis / Apis mellifera / calorimetry
Attachments:
FileDescriptionFile sizeDownloads
Download this file (Propolis_treatment_varroa.pdf)Propolis_treatment_varroa.pdf 459 kB2363
Kategorie: Bienengesundheit / Varroa (Varroa destructor)

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