Varroa checks during inspections (monitoring, not treatment)
Understand why monitoring matters and follow NBU methods; this guide does not recommend treatments or doses.
Monitoring is an observation task
Varroa is a parasite of honey bees and monitoring helps a beekeeper understand colony mite levels over time. The appropriate method and timing depend on circumstances. Use the current National Bee Unit guidance for approved monitoring methods and interpretation, and record the method, date and result consistently.
A single result is a snapshot, not a diagnosis of overall colony health. Do not infer a treatment choice or dose from this page. Treatment decisions, product authorisation and timing require current specialist guidance; refer to the NBU and the Veterinary Medicines Directorate where relevant.
If you are new to monitoring, ask a trained mentor to demonstrate the method. Keep records with the colony’s other inspection notes. NBU Varroa resources · NBU beekeeper advice.
Sting safety: A sting can happen even with protective clothing. Scrape a visible sting out promptly. If you have had a strong reaction, speak with your GP before beekeeping and do not inspect alone. BBKA getting started.
Sources and further reading
Editorial review: 2026-10-25. Follow the original guidance if it changes.
NBU guidance was reviewed using indexed official source text. Direct access to the NBU website was unavailable during review; check its current guidance before acting.