The following abstract may be of interest to beekeepers looking for ways to disinfect equipment contaminated by Bacillus larvae. --Cal French, Paso Robles, California, USA -------------------------------- Sporicidal Activities of Disinfectants on Paenibacillus larvae Atsuko OKAYAMA, Tomoko SAKOGAWA, Chie NAKAJIMA, and Toyoaki HAYAMA Research Institute for Animal Science in Biochemistry and Toxicology, 3-7-11 Hashimotodai, Sagamihara, Kanagawa 229-11, Japan (Received 16 April 1997/Accepted 10 June 1997) Abstract:Sporicidal activities of glutaraldehyde, sodium hypochlorite, povidone iodine, ethylene oxide gas, chlorhexidine gluconate, and didecyl dimethylammonium chloride on wet and dry spores of Paenibacillus larvae (basonym: Bacillus larvae) were evaluated for control of honeybee American foulbrood. Glutaraldehyde was found to have a strong and rapid effect on both the wet and the dry spores among the disinfectants tested. Keywords: disinfectant, Paenibacillus larvae, sporicidal activity. J. Vet. Med. Sci. 59(10): 953-954, 1997 -------------------------------------------------------------------------