Could VarroxSan be the Next Step in Australia’s Fight Against Varroa?

Could VarroxSan Be the Next Step in Australia’s Fight Against Varroa?

As Australian beekeepers continue adapting to the challenge of Varroa destructor, new and practical treatment options are becoming increasingly important. One product generating interest is VarroxSan — recently approved for use in New Zealand — a slow-release oxalic acid strip designed to provide long-lasting mite control with minimal disruption to the hive.

What Is VarroxSan?

VarroxSan uses oxalic acid embedded in biodegradable cardboard strips. When placed between brood frames, the strips slowly release oxalic acid vapour over several weeks. This helps target mites both on adult bees and emerging brood, without stressing the colony.

Why It Matters

Unlike some existing treatments, VarroxSan:

• Can be used safely while honey supers are on, with no withdrawal period.
• Offers steady, gentle exposure rather than a single harsh dose.
• Leaves no detectable residues in wax or honey.
• Works year-round, regardless of temperature.

This flexibility makes it especially appealing for Australian conditions, where climate variation and long nectar flows make treatment timing a challenge.

A Potential Tool for Australian Apiaries

If approved for use here, VarroxSan could become a valuable addition to integrated varroa management programs. It would give Australian beekeepers a low-residue, natural acid-based option that fits well alongside formic and amitraz treatments, helping reduce chemical resistance and maintain hive health.

As Australia continues developing sustainable strategies for living with varroa, access to a wider range of proven tools like VarroxSan will be vital to keeping colonies strong and productive.