Description

Using isopropyl alcohol (IPA) is one of the most accurate and widely used methods for detecting Varroa destructor levels in a hive. This method—often called an alcohol wash—dislodges mites from bees so you can measure infestation levels and make informed treatment decisions

Why Use Isopropyl Alcohol?

• Highly accurate: Removes nearly all mites from sampled bees
• Fast results: Immediate count after shaking
• Reliable decision-making: Helps determine if treatment is needed

How the Alcohol Wash Works

1. Collect ~300 bees (about ½ cup) from the brood frame
2. Place bees into a jar or test container
3. Add enough isopropyl alcohol (70% or higher) to fully cover bees
4. Shake gently for 30–60 seconds
5. Strain out the liquid and count mites