Oxybee is an organic varroa treatment based on oxalic acid with glycerol, anise and eucalyptus essential oils. Application by trickling method.
Veterinary medicine of oxalic acid with glycerine, sucrose and essential oils of anise and eucalyptus, applied by trickling in colonies without brood. A 1 L bottle for 30 hives.
Oxalic acid does not pass the cappings: that is why this treatment only makes sense with the colony free of capped brood, and why a single application is enough.
01 · PREPARING AND APPLYING IT
Mix the powder from the sachets with the solution in the bottle, warm the lot in water at 30-35 °C and shake until it is fully dissolved. Then trickle it over the bees, in the spaces between frames that are occupied: 5 to 6 ml per gap and never more than 54 ml per hive. It goes on with a syringe or a dosing gun — not included — and it is a trickle treatment: it is not sprayed.
02 · THE BROODLESS WINDOW
The datasheet specifies one treatment per colony. The moment is when there is no capped brood: in the natural break of winter, or in an induced one — caging the queen, removing brood, making up nuclei or requeening. With capped brood inside, most of the mites are where the oxalic acid cannot reach them, and the result will disappoint however well you apply it.
03 · TEMPERATURE
The datasheet allows application above 3 °C outdoors. Our experience with the Iberian bee is different and worth stating: at low temperatures we have seen excessive mortality, so we advise not going below 15 °C and, if you can choose, applying it above 20 °C, where mortality is minimal. In winter, in the middle hours of the day.
04 · WHAT TO EXPECT
Like every trickled oxalic treatment, it can cause slight mortality among the bees; with the dose and the temperature respected it is minimal. The honey withdrawal period is zero days, but it is not used with honey supers on or during a flow. And one practical advantage of the format: once reconstituted it keeps for a year in the fridge, even if the date on the unopened bottle is earlier.
05 · BEFORE YOU BUY
No veterinary prescription required; if you need one for your holding records, ask and it goes with the order. We dispense it as a retail establishment for veterinary medicines, no. V-48-VC. In a Layens hive with open top bars the trickling is done without moving frames.
| ✓ FITS | Varroosis in colonies without capped brood, from a natural or induced break. |
| ✕ DOESN'T FIT | With capped brood, with honey supers on or during a flow. |
| ⚠ NOT INCLUDED | Syringe or dosing gun. |
| Active substance | Oxalic acid dihydrate, 39.4 mg/ml in the final dispersion |
|---|---|
| Other components | Glycerine, sucrose and essential oils of anise and eucalyptus |
| Format | 1 litre · up to 30 hives |
| Application | Trickled over the bees, 5-6 ml per gap between frames |
| Maximum | 54 ml per hive |
| Treatments | One only per colony |
| Temperature | Datasheet: > 3 °C · our advice: > 15 °C |
| Withdrawal | Honey: zero days · not with supers on or during a flow |
| Storage | Reconstituted, one year in the fridge |
| Prescription | Not subject to veterinary prescription |
| Reference | 586939 |
Data sheet
Specific References

Oxybee is an organic varroa treatment based on oxalic acid with glycerol, anise and eucalyptus essential oils. Application by trickling method.
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