sehr umfangreiche Schriften von den Vorreitern der kleinzelligen, behandlungsfreien Bienenhaltung Ed&Dee Lusby
The Influence of Cell Size on Infestation Rates by the Mite Varroa Jacobsoni
The Influence of Cell Size on Infestation Rates by the Mite Varroa Jacobsoni The Influence of Cell Size on Infestation Rates by the Mite Varroa Jacobsoni XXX International Apicultural Congress,…
