Api-Bioxal 31g (New Formulation) Api-Bioxal 31g (new formulation) is a highly effective oxalic acid-based treatment for the control of Varroa destructorin honey bee colonies. Manufactured by Chemichals Laif, this updated formulation offers improved solubility and flexibility, making preparation and application easier and more consistent. Simon the Beekeeper is an official UK distributor for Chemichals Laif, and we hold a Wholesale Dealer’s Licence certified by the Veterinary Medicines Directorate (VMD)—giving you confidence that you are purchasing genuine, fully authorised product from a trusted UK supplier. Designed for use during broodless periods, Api-Bioxal delivers excellent mite control when colonies are most vulnerable, helping to maintain strong, healthy hives. 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 Supplied by an official UK distributor with VMD-certified wholesale licence Suitable for organic beekeeping (subject to local regulations) How to Use & Dosage Api-Bioxal can be applied using three different methods depending on your preferred treatment approach: 1. Trickling (Dribble Method) 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 👉 Best used in late autumn or winter when colonies are broodless. 2. Sublimation (Vaporisation) Use 2.3g per hive (approximately 1/14 of a sachet) Apply using an approved oxalic acid vaporiser 👉 Ideal for winter treatments or repeated applications when brood is minimal. 3. Spraying Method Dissolve 1 sachet (31g) in 500ml of clean water Spray 3–4ml per side of each comb covered with bees 👉 Suitable for nucleus colonies, swarms, or packages. 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
