[The use of antibiotics and sulphonamides in the control of bee larvae plague]

acide ascorbique acido ascorbico apis mellifera application rates ascorbic acid bacillus larvae chemoprophylaxis control de enfermedades disease control disease resistance dose d'application neomicina neomycin resistencia a la enfermedad saccharose sucrosa sucrose sulfamide sulfonamidas sulphonamides tilosina tylosin tylosine