By Jenny Mills · rural nurse & homesteader · health, safety, law and the paperwork of going bush

“After losing 14 of my 20 hives to resistant mites, I learned that treating without a permit is a criminal offence in Victoria.”

Counting Varroa Before the Colony Crashes

Check weekly. No excuses. If you're off-grid and don't check, you're already losing.

Monitoring Methods

• Alcohol wash test: 100 bees in a jar, shake with 100ml rubbing alcohol. Strain. Mites = bad. (Cost: $0.50 for alcohol, $2 for jar)
• Drone brood check: Varroa loves drone cells. Open a drone frame. If mites are there, you're screwed. (Free)
• Sticky board: Place under hive. Count mites on paper. >3 mites/week = treatment needed. (Cost: $5 for paper)

My Varroa Treatment Lineup: What's in the Shed and What Got Binned

Varroa doesn't care about your off-grid lifestyle. It kills bees fast. Use these methods – no alternatives.

Winter Oxalic Acid: Dribble and Vapour Without the Grid

Apply as vapor in cold weather (below 10°C). Kills mites on bees, safe for honey. No residue.

• How: Heat oxalic acid (100g in 1L water) to 60°C. Vaporise with a heater. Do at night, no wind.
• Australian supplier: Beekeeper's Supply (100g jar: $22)
• Price: $22 for 100g (treats 10 hives)

Formic Acid: The Heat-Dependent Treatment

Use in warm weather (above 15°C). Must be in a formic acid patty system. Don't use open jars – kills bees.

• How: Place patty under hive. Wait 14 days. Check mite drop.
• Australian supplier: Bee Supply (100g patty: $18)
• Price: $18 for 100g (treats 1 hive)

Thymol Treatment: Why I Weigh Every Dose and Watch the Weather

Alternative Treatments

Not as effective as oxalic. Only use if other methods fail. Can contaminate honey.

• How: Use in a thymol strip (like Apiguard). Place in hive. Wait 4 weeks.
• Australian supplier: Beekeeper's Warehouse (100g: $25)
• Price: $25 for 100g (treats 1 hive)

How I Hit Varroa the Moment I Spot It

• Don't wait for mites to kill your bees. Treat at first sign. Waiting = dead bees.
• Never use sugar dusting or essential oils. They don't work. Waste of time and money.
• Keep records. Track mite counts weekly. If it's above 2% (1 mite per 50 bees), treat immediately.
• Off-grid? Use oxalic acid. It's cheap, effective, and you don't need electricity.
• After treatment, re-test in 14 days. If mites are still high, treat again. One-off treatments fail.
• Buy from Australian suppliers. Imported treatments often don't work here. Stick to local.

I keep a close eye on my colonies. Varroa will kill your bees if you ignore it. Australia is currently free of varroa – but that could change tomorrow. Check your hives. Treat if needed. Don't be the beekeeper who ignored the warning.

When the Mites Outpace My Treatment Schedule

While many off-grid projects are achievable as DIY, certain situations require licensed professionals:

• Electrical work beyond basic 12V DC additions — requires a licensed electrician
• Structural modifications to buildings or load-bearing elements
• Gas line installation or modification
• Solar array installations above safe voltage thresholds
• Any work that affects the structural integrity of your property

Always check local regulations and obtain necessary permits before commencing work.