Varroa Mite and Honey Bee Welfare: A Growing Crisis

How the Varroa destructor mite is devastating honey bee colonies globally, what this means for bee welfare, and what management approaches help.

Key Facts

Varroa destructor is the most damaging parasite of honey bees globally
Mites weaken bees by feeding on fat bodies and transmitting viruses
Untreated Varroa infestation typically kills a colony within two to three years
Chemical treatments (miticides) exist but resistance is emerging
Selective breeding for Varroa-resistant bees is a promising long-term solution

Welfare Considerations

The welfare implications of Varroa infestation are significant. Infested bees show reduced lifespan, impaired immune function, deformed wings, and disrupted navigation. Colony collapse driven by Varroa is a stressful process that affects thousands of individuals simultaneously. Beekeepers face difficult choices between chemical treatments (which have their own welfare implications and may harm bee gut microbiomes) and leaving colonies to their fate. Integrated pest management approaches that combine monitoring with targeted treatment are considered best practice.

What You Can Do

Support beekeepers who practice regular Varroa monitoring and integrated management
Learn the signs of Varroa infestation if you keep bees
Advocate for research funding into Varroa-resistant bee strains
Plant diverse, pesticide-free forage to support bee immune systems
Support regulations that prevent the spread of Varroa through bee imports