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Research on chalkbrood disease of honey bees


, : Research on chalkbrood disease of honey bees. Proceedings of the XXVIth International Apicultural Congress, Adelaide: 451-458

Using various techniques (which are described), attempts were made to infect bees in immature stages with Ascosphaera apis. Eggs, pupae and the smallest larvae were not susceptible to artificial infection, but medium and large larvae, and prepupae, were. These stages were also susceptible to natural infection. For infection with some strains of A. apis (e.g. European strains) chilling is necessary. A procedure is described for removal of brood from the comb and surface sterilization.

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