72. How do I treat Varroa infestations?

Dealing with Varroa mites is now a normal part of beekeeping. While it may feel worrying at first, the good news is that there are clear, practical ways to manage them. With a calm and regular approach, you can keep your bees healthy and productive.

Let’s walk through the process step by step.

Start with monitoring

Before treating, it is important to know how many mites are present. This is called monitoring.

Common beginner-friendly methods include:

• Sugar shake test – Bees are gently coated in powdered sugar, causing mites to fall off for counting.

• Sticky board – A tray placed under the hive collects falling mites over a few days.

• Alcohol wash – A more accurate method, but it sacrifices a small number of bees.

Monitoring helps you avoid unnecessary treatments and tells you when action is needed.

When should you treat?

You don’t need to treat constantly. Instead, treat when mite levels rise above safe limits.

As a simple guide:

• Low levels: continue monitoring

• Moderate to high levels: begin treatment

Many beekeepers treat at least once or twice a year, often in late summer or early autumn, when mite numbers tend to peak.

Common treatment options

There are several reliable treatment methods. Each works in a slightly different way, and choosing one often depends on your climate, season, and personal preference.

• 1. Oxalic acid

Oxalic acid is a popular and effective treatment.

• Applied as a dribble (liquid trickled between frames) or vapour

• Works best when there is little or no brood in the hive

• Gentle on bees when used correctly

Many beginners find this a good starting point because it is simple and affordable.

• 2. Formic acid

Formic acid treatments (often in pads or strips) are widely used.

• Can kill mites inside capped brood cells, which is a big advantage

• Works even when brood is present

• Needs careful use in warm weather, as high temperatures can stress bees

• 3. Thymol-based treatments

These use natural compounds from thyme plants.

• Available as gels or pads placed inside the hive

• Slower acting but generally easy and safe to use

• Work best in moderate temperatures

• 4. Synthetic strips (e.g. amitraz-based)

These are strips placed between frames.

• Very effective when used correctly

• Stay in the hive for several weeks

• Important to rotate treatments to avoid resistance

A simple treatment routine

For a beginner, it helps to follow a clear routine.

Step 1: MonitorCheck mite levels every few weeks during the active season.

Step 2: DecideIf mite numbers are rising, choose a suitable treatment.

Step 3: Apply carefullyFollow the instructions exactly. More is not better—correct use is key.

Step 4: Check againAfter treatment, monitor again to see how effective it was.

Practical tips for success

• Treat all hives in your apiary at the same time

  
  

  This prevents mites moving between colonies.

• Follow seasonal timing

  
  

  Late summer and early autumn treatments are especially important to protect winter bees.

• Avoid over-treating

  
  

  Too many treatments can stress bees and lead to resistance.

• Keep good records

  
  

  Note what you used and when—it helps you improve each year.

A gentle reminder

It’s easy to feel discouraged when you first hear about Varroa mites. But nearly every beekeeper faces them, and many manage them very successfully.

Think of Varroa control as part of your regular hive care—just like checking food stores or watching for swarming.

With steady attention and simple routines, you can protect your bees and enjoy the rewarding experience of beekeeping with confidence.