Since its arrival in Wales in 1994  the varroa mite has become the major threat to honeybees. It is also evolving resistance to the treatments originally used to manage it. You should monitor the level of the mite in your hives regularly and take action to deal with infestation.

These articles from Scientific Beekeeping may be of interest if you want more information about using icing sugar (powdered sugar) as a non-chemical method of mite control.

• Part 1
• Part 2
• Part 3