Powdered sugar examination as a tool for the assessment of Paenibacillus larvae infection levels in honey bee colonies
Front Vet Sci . – Vol. 9 (2022) . – Article no. 853707 (8 p). – 36 bib ref ultimo accesso 19/04/2022 https://doi.org/10.3389/fvets.2022.853707 Nr. Estr….
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