Colonies diseased with AFB in isolated
apiaries near Laramie were treated with the comparatively
new antibiotic tylosin, or with sodium sulfathiazole
applied by either gorging or dusting treatments.

The gorging treatment developed by Farrar (1956)
consists of sprinkling the medicated sugar sirup directly
onto the adult bees of a colony so they are
thoroughly soaked.

Gorging colonies of Apis mellifera L. with sugar sirup
or dusting them with dry powdered sugar containing
tylosin lactate or sodium sulfathiazole controlled most
cases of American foulbrood disease when the treatments
were repeated once a week for at least 3 weeks. Gorging
was more effective than dusting in controlling the disease.

Tylosin tartrate [Tylan] also effectively controlled
American foulbrood disease.

Hitchcock, J. D., Moffett, J. O., Lackett, J. J., & Elliott, J. R. (1970). 
Tylosin for Control of American Foulbrood Disease in Honey Bees. 
Journal of Economic Entomology, 63(1), 204-207

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