Update: October 2026
The survey has been renamed
The Colony Loss Survey is now called the National Bee Health Survey.
For information about the survey, how to participate, and survey results, refer to this page: National Bee Health Survey
About colony loss surveys
Biosecurity New Zealand worked with Manaaki Whenua – Landcare Research to survey managed honeybee colonies since 2015. The annual questionnaire asked beekeepers about their winter colony losses and possible causes. We used the results to understand established pest and disease burden and to compare colony loss rates between New Zealand and more than 40 other countries that partake in the international effort. The results also contributed to other work we do to improve bee health.
Design of the surveys
The online survey was adapted for New Zealand from surveys being taken in other countries. Participation was voluntary. Beekeepers were asked about:
- losses of hives (and causes) over winter
- queen bee health
- monitoring and treatment for mites (Varroa)
- feeding supplements used
- floral sources providing significant nectar flow
- shares of colonies in pollination and honey production
- broodcomb replacement policy.