Frequently Asked Questions (FAQ)
10 Common Questions About Treating for Varroa Mites
- What are the main treatments for varroa mites?
- Formic acid (e.g., Formic Pro), oxalic acid vapor or dribble, Apivar (amitraz), and thymol-based (Apiguard).
- Choose treatments based on temperature, brood presence, and mite load.
- Rotate treatments to avoid resistance.
- When should I treat for varroa mites?
- In late summer before winter bees are raised.
- After honey harvest in fall is a common time.
- Based on test results—when thresholds are exceeded.
- Can I treat with honey supers on the hive?
- Some treatments like formic acid are approved with supers on.
- Others, like Apivar or oxalic acid, require supers to be removed.
- Always check product label instructions.
- Is it safe to use oxalic acid in a hive?
- Yes, if used correctly with approved methods.
- Oxalic acid is most effective when no brood is present.
- Use protective gear and avoid overuse.
- Can I treat during winter?
- Yes, oxalic acid dribble or vapor works best when broodless.
- Winter treatments help start spring with low mite levels.
- Avoid treatments that require heat or active foraging.
- What natural methods are available?
- Drone brood removal to interrupt mite reproduction.
- Sugar dusting to dislodge mites.
- Breeding or selecting for mite-resistant queens (e.g., VSH).
- How do I know if a treatment is working?
- Retest mites 7–14 days after treatment.
- Observe bee behavior and colony strength.
- Sticky boards can help monitor fall after treatment.
- Can I use the same treatment every year?
- No, rotating treatments reduces resistance risk.
- Follow integrated pest management (IPM) practices.
- Observe how your colony responds to different options.
- What are signs my bees are suffering from mites?
- Deformed wings (DWV), spotty brood, and declining population.
- Presence of mites on adult bees or larvae.
- Excessive mite drop or poor overwintering survival.
- How do I choose the right treatment?
- Base it on season, temperature, and brood presence.
- Consider the strength of the colony and nearby nectar flow.
- Consult local beekeepers or extension resources for guidance.