Api-Bioxal Powder (vaporisation method)

Api-Bioxal is a non-synthetic treatment for the control of Varroa destructor mites in honeybee hives.

Note:

  • This product is permitted for use in Australia.

  • It must be used in accordance with the permit conditions, which over-ride the overseas label.

Active ingredient Oxalic acid dihydrate (organic acid). 2.3 g dose of Api-Bioxal Powder per hive, administered by vaporisation method.
APVMA approval Permit: PER94609
Treatment period “Knock-down” treatment. Only use maximum twice per year. Minimum interval of 5 days between applications. For greatest efficacy treat hives when there is no or little brood, either in autumn/early winter or after inducing a brood break. Supers may be left on but ideally they will have been removed.
Effectiveness 90%+ in brood-free colonies. The presence of brood, temperature variation and reinfestation pressure may reduce product effectiveness.
Targets Mites on adult bees only. Mites in brood will not be affected.
Resistance risk Not observed
Mode of Action (MOA) MOA not clearly understood. Low pH of oxalic acid has negative effects on mites.
Conditions for use

2.3g dose of Api-Bioxal Powder per hive, administered by vaporisation method using an electric resistance device for vaporisation. Fill pan of vaporiser with 2.3g powder, place appliance through hive entrance under bees and avoiding contact with frames. Seal hive entrance and other ventilation points (e.g., ventilated bottom boards). Turn on vaporiser following manufacturer’s instructions for about 3 minutes and keep hive shut for another 15 minutes, then unseal hive entrance and ventilation points. DO NOT overdose.

Slight agitation commonly observed during treatment and increased adult bee mortality after treatment. DO NOT perform clean-up or other hive maintenance activities (including harvesting honey) until 48 hours after treatment, unless wearing cotton overalls buttoned to the neck and wrist (or equivalent clothing) and chemical resistant gloves and goggles.
Withholding period (WHP) HONEY: Zero (0) days.
Contamination risks None
Operator safety

Corrosive. Avoid skin/eye contact, ingestion, or inhalation. Only to be handled in a well-ventilated area.

Always wear a respirator, protective goggles, gauntlet-length chemical-resistant gloves, cotton coveralls or equivalent (long sleeves, long pants), socks, shoes when applying oxalic acid by vaporisation method.

Half facepiece respirator with combined particulate and acid gas cartridge when applying oxalic acid by vaporisation method.

After use:
After use and before eating, drinking or smoking, wash hands, arms and face thoroughly with soap and water. After each day’s use, wash gloves, goggles, respirator and contaminated clothing
Environment Toxic to aquatic and terrestrial life. Chemical not to be applied onto or into water. Dispose of unused product or container by wrapping with paper and putting in the garbage.
For 5 L HDPE/LDPE container see permit for disposal instructions.
Residues N/A if permit instructions followed

How to use Api-Bioxal

Video coming soon