Published beetle development times by soil temperature, the control methods that target each life stage, and the seven mistakes that turn manageable beetle numbers into ruined comb.

Published conductivity figures, calculated wall R-values and trial data on winter feed use and humidity, plus what to ask a factory before choosing between foam-cored and timber hives.

What a varroa sensitive hygiene queen breeding programme costs: the assays, mating control, seasonal calendar for both hemispheres and breeder checks.