Description
Manufactured by Chemichals Laif, this updated formulation offers improved solubility and flexibility, making preparation and application easier and more consistent.
Key features:
- New improved formulation for faster dissolution and easier mixing
- Proven varroa control when used correctly
- Flexible application methods: trickle (dribble), spray, or sublimation (vaporisation)
- Pre-measured 31g sachet for accuracy and convenience
- Suitable for organic beekeeping (subject to local regulations)
Application Guidance
Api-Bioxal can be applied using three different methods depending on your preferred treatment approach:
1. Trickling (Dribble Method): Best used in late autumn or winter when colonies are broodless.
- Dissolve 1 sachet (31g) in 1 litre of 1:1 sugar syrup (1kg sugar + 1L water)
- Apply 5ml per occupied seam of bees
- Maximum 50ml per colony
2. Sublimation (Vaporisation): Ideal for winter treatments or repeated applications when brood is minimal.
- Use 2.3g per hive (approximately 1/14 of a sachet)
- Apply using an approved oxalic acid vaporiser
3. Spraying Method: Suitable for nucleus colonies, swarms, or packages.
- Dissolve 1 sachet (31g) in 500ml of clean water
- Spray 3–4ml per side of each comb covered with bees
When to Use
- Apply during broodless periods for maximum effectiveness
- Commonly used in late autumn and winter
- Can be used at other times only when little or no brood is present
Active Ingredient
- Oxalic Acid Dihydrate
Important Information
- For use in honey bee colonies only
- Do not apply during honey flow
- Always wear appropriate PPE (gloves, eye protection, respirator for vaporisation)
- Use strictly in accordance with label instructions and UK regulations






