Frequently Asked Questions (FAQ)
10 Common Questions About Testing for Varroa Mites
- How do I test for varroa mites in my hive?
- Use the alcohol wash method for an accurate count.
- Try the powdered sugar roll for a non-lethal test.
- Use sticky boards under screened bottom boards as a passive method.
- When should I test for varroa mites?
- At least once per month during the active season.
- Before and after treatment to measure effectiveness.
- During spring buildup, mid-summer, and early fall.
- What is the threshold level that requires treatment?
- Generally, 3% (3 mites per 100 bees) or higher needs treatment.
- Lower thresholds may be used in late summer/fall.
- Any spike in mite counts should prompt immediate action.
- How do I collect bees for mite testing?
- From the brood nest to get nurse bees, which carry more mites.
- Use a bee sample of around 300 bees (~½ cup).
- Avoid collecting bees from honey supers or outer frames.
- Do I need to test every hive?
- Ideally yes, as mite loads vary between colonies.
- Testing a few representative hives can work for large apiaries.
- Monitor both strong and weak colonies for comparison.
- Is mite testing harmful to the bees?
- Alcohol wash kills the sample bees.
- Sugar roll is non-lethal and preferred by some beekeepers.
- Sticky boards are non-invasive and kill no bees.
- Can I test during cold weather?
- Mite testing is best in temperatures above 60°F.
- Cold can clump bees, affecting sample accuracy.
- Test in warm, dry conditions for best results.
- Should I test after treating?
- Yes, always test again to verify treatment effectiveness.
- It helps guide follow-up decisions and track resistance.
- Essential to confirm mite load is under control.
- Can I rely on visual inspections instead of testing?
- No, visible mites usually indicate a serious infestation.
- Testing is the only way to quantify mite loads.
- Visual cues should trigger testing, not replace it.
- How do I track mite test results over time?
- Use a hive inspection log or spreadsheet.
- Graph results to see trends and treatment effectiveness.
- Also there are Apps that can help with data logging.