The aim of this study was to test a range of fatty acids against a diverse range of Australian honeybee bacterial pathogens. Some overseas isolates were also included in this study for comparative purposes. This study has demonstrated that both P. l. larvae and M. pluton are sensitive to a range of fatty acids. Of the 28 fatty acids tested in this study 15 showed activity against P. l. larvae. On average, in decreasing order of activity the six most active were undecanoic, homo-y-linolenic, capric, 7,10,13,16-docosatetraenoic, linolenic and 13,16,19-docosatrienoic (Table 3). Of the 28 tested in this study 21 showed activity against P. l. larvae in Feldlaufer’s study. The six most active in that study were lauric, myristoleic, palmitoleic, linoleic, ricinoleic and undecanoic.
The activity of the fatty acids against P. l. larvae was usually less than that reported by Feldlaufer et al (1993b)
Fatty acids – an alternative control strategy for honeybee diseases by Michael Hornitzky 2003
https://rirdc.infoservices.com.au/downloads/03-028
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