Beekeeping Tools and Supplies

Heilyser Oxalic Acid Vaporizer

Oxalic acid is an excellent treatment for Varroa mites, especially when the hive has little or no brood. In Maine, we use it in October, December/January, or in early spring.

Runs from the power of a 12 volt (car) battery. Uses 1 gram of oxalic acid crystals per deep hive body. Pure oxalic acid is sold as wood bleach and is widely available at hardware and paint stores.