Emission of Volatile Sulphide from Residues of Diseased Honeybee Larvae

Abstract
American foul brood scales and chalk brood mummies produced a volatile sulphide which was detected by lead acetate strips. A positive reaction required a minimum of 0·03–0·1 g larval residue per ml volume of container and an exposure time of 2–4 weeks. However, the method proved to be non-specific and is not sufficiently sensitive for detection of disease in honeybee colonies.