I like to treat my hives with OAV at least once a month during winter when the temps hit the 40s and I see some activity. I use a Johnno's easy vap vaporizer. 15 hives took less than 30 minutes. Thank Treat For Varroa Mites Johno's Easy Vap (Oxalic Acid) YouTube Introducing the Easy Vap Pro Beesource Beekeeping Forums Introducing the Easy Vap Pro Page 4 Beesource Beekeeping Forums InstantVap Original Oxalic Acid Vaporizer With Battery Protection Foxhound Bee Company Oxalic Acid vaporizer. Johno's Easy Vap. I have 2 for sale. $75 each plus postage.
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