How to Apply Thymovar

🐝 How To Apply Thymovar Properly

Thymovar is one of the most common late summer Varroa treatments.

Used correctly, it reduces mite levels before winter bees are raised.

Used at the wrong time or in the wrong conditions, it underperforms and stresses colonies.

In this video I show you exactly how to apply Thymovar properly and what you must get right.

🌡 Temperature Comes First

Thymovar works by releasing thymol vapour into the hive.

That release is temperature dependent.

Ideal daytime temperatures are generally between 15°C and 30°C.

Too cold and the vapour release is weak.
Too hot and colonies can become stressed.

Never ignore the forecast.

📦 Correct Placement

Place the wafer directly above the brood nest.

Ensure:

• Good airflow
• No excessive ventilation changes
• The wafer sits flat
• It is not buried under insulation

The vapour must circulate naturally through the brood area.

⏳ Treatment Schedule

Standard protocol usually involves:

• First wafer for around 3 to 4 weeks
• Replace with second wafer
• Complete full course

Always follow label instructions precisely.

Partial treatment equals partial control.

🐝 What You Might See

During treatment you may notice:

• Increased fanning
• Some bearding
• Temporary brood disturbance
• Early mite drop

This is normal if temperatures are within range.

🧠 Where Thymovar Fits in the Year

Thymovar is part of an annual plan.

For me that typically includes:

• Honey removal
• Late summer thymol based treatment
• Winter oxalic acid clean up

If you reduce mites before winter bees are raised, spring becomes far easier.

🎓 14 Day Beekeeper

If you want structured seasonal guidance on Varroa timing and hive management:

blackmountainhoney.co.uk/14-day-beekeeper-onlin…
blackmountainhoney.co.uk/product-page/14-day-be…
blackmountainhoney.co.uk/product-page/14-day-be…

🐝 Queens, nucs and honey from Black Mountain Honey

blackmountainhoney.co.uk

📺 Recommended Internal Videos

Sublimating Oxalic Acid To Knock Down Varroa
youtube.com/watch?v=BtEtPdQ3MLo

When To Vape Bees With Oxalic Acid - Timing Is Everything
youtube.com/watch?v=2nTDOfThHWc

How To Kill Varroa Mites With Oxalic Acid Treatment
youtube.com/watch?v=K1OeHZl-d-w

📂 Recommended Playlists

Managing Varroa
youtube.com/playlist?list=PLyLxGqqW34TZBWrFLQW1…

Hive Inspections & Techniques
youtube.com/playlist?list=PLyLxGqqW34TZe7BkCdVv…

Introducing queens
youtube.com/playlist?list=PLyLxGqqW34TasZtxL7li…