Best Oxalic Acid Vaporizers for Varroa (and How to Use One Safely)
An oxalic acid vaporizer heats a measured dose of oxalic acid crystals until they turn into vapor inside a closed hive. The vapor coats the bees and comb and kills varroa mites riding on adult bees. For most hobby beekeepers with a few hives, a simple 12V wand vaporizer run off a car battery is…

