The activity of Cinnamomum zeylanicum Nees essential oil (cinnamon oil) against Paenibacillus larvae (Withe) was evaluated in the laboratory and in a field experiment in order to improve the biological control of the Apis mellifera L. disease American foulbrood (AFB). The MICs (Minimal Inhibitory Concentration) against P. larvae were determined by the tube dilution method. Bee lethality was est...
