Varroa Mite For Bee keepers

We are always available to talk. We understand that many apiarists have found the Varroa arrival extremely stressful. Euthanising hives can be desperately sad. We understand and are always here to talk, or call

• Rural Financial Counselling Service 1800 344 090
• SmallBiz Connect 1300 134 359
• NSW Mental Health Line 1800 011 511 (24/7)
• Beyond Blue 1300 224 636
• Lifeline 13 11 14
• Rural Adversity Mental Health and Wellbeing Line (Mon-Fri 9am-5pm) 1300 175 594

Varroa mite is now an ongoing reality for beekeepers across our region—and it’s important everyone stays informed.

What’s the current situation?

Varroa mite (Varroa destructor) is now widespread across New South Wales, and local areas like Hornsby, Arcadia and Dural should assume it is present or nearby.

Australia officially moved from an eradication response to long-term management, meaning the focus is now on controlling the mite rather than eliminating it.

Recent testing has confirmed a new strain of varroa mite with resistance to key treatments in NSW and Queensland.

• Resistance has been found to both major chemical treatment groups (amitraz and pyrethroids)
• This may represent a separate, newer incursion, not just spread from the original 2022 outbreak
• These resistant mites are expected to continue spreading

This is a significant development, as it reduces the number of effective treatment options available.

For backyard and hobbyist beekeepers in the Hills / Hornsby region:

• You should now assume varroa is present in your area
• Hive losses are a real risk if mites are not actively managed
• Treatment failure may occur if resistance is present
• Ongoing monitoring is no longer optional—it’s essential

Regularly monitor mite levels (before and after treatment)
Rotate treatments—don’t rely on a single product
Consider organic acid-based treatments, as resistance has not been identified in these yet
Report any suspected treatment failures or unusual hive decline

Varroa mite isn’t coming—it’s already here.

The focus has shifted from “keeping it out” to learning how to manage it effectively and protect your hives long-term. With new resistant strains emerging, staying proactive and informed is more important than ever.