The occurrence of chalk brood disease in colonies of the honey bee Apis mellifera located at the apiary of the Department of Zootecnia of the Federal University of Santa Maria (UFSM), Brazil, was evidenced in 2004. Hard and mummified honey bee larvae were collected from failed combs found in poorly populated colonies. These samples were analyzed in the Laboratory of Phytopathology, at the Plant Protection Department (UFSM), where the presence of fungal structures typical of Ascosphaera apis were observed. This fungus is known to cause chalk-brood disease. This is the first record of the presence of this disease in the central region of the State of Rio Grande do Sul, Brazil, characterizing the dissemination of the disease coming from the border with Uruguay and Argentina.
honey bees pathology; fungus; mummified
