Threshold Action Calculator
Decision Helper
Determine whether your mite levels require treatment based on season, colony status, and flow timing. Shows suitable treatment options.
From alcohol wash or sugar roll
Results
Your mite level
3per 100 bees
Seasonal threshold
2per 100 bees
Treat soon
Mite levels are significantly above threshold. Treat within the next 7 days to prevent colony damage.
Sufficient time before flow for any treatment method.
Treatment Options
✓
Oxalic acid vaporization (OAV)
Use 3-round protocol with brood
✓
Formic acid (MAQS / Formic Pro)
Can be used with honey supers in some regions. Check local label.
✓
Apivar (amitraz strips)
42-day treatment, no supers
✓
Apiguard (thymol)
Temperature must be above 59°F (15°C)
✓
Drone brood removal
Supplemental method - reduces mites 10–20%
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Disclaimer: BeeCalc Hub calculators provide estimates and guidance based on common beekeeping practices. Results should be adapted to your local conditions, climate, and hive setup. Always consult experienced beekeepers or extension services for critical management decisions. Read full disclaimer →