Oxalic Acid
March 17, 2026, fourteen people were in attendance. Parker made a motion to accept the February 17, 2026 minutes as emailed out February 27, 2026. Randy seconded the motion. All were in favor.
Randy stated we had $945 in the association’s fund. $450 of the fund are liabilities for the website and PO Box.
Rosemary brought some Killian’s Irish beer and pretzels for a St. Patrick’s door prize. Question was, what do snakes and honey bees have in common? The lucky winner, Mark Habel stated that people are afraid of both. Thank you Rosemary for bringing some fun to the meeting.
Randy spoke of a new product that was approved September 2024 by the EPA, VarroxSan Oxalic Extended Release Strips. They cost around $30 for 20 strips. They can be used during a honey flow. Varroxsan is intended to be used in a hive with an already low mite count to keep them low. Long sleeves, gloves, eye protection and a Niosh approved respirator with a N, R or P filter are required. Treatment lasts 42-56 days. It is recommended to use one strip for every 2.5 frames of bees. No more than 4 strips per hive. However, testing shows 6-8 strips per 10 frame hive is more effective. Each strip is bent into a U shape and put in the brood area. It is a contact treatment, not vaporization. Argentina has been utilizing strips similar to VarroxSan for years. Oxalic acid is a naturally occurring substance. For example, rhubarb leaves have oxalic acid in them.

David spoke about oxalic acid vaporization and drip treatments. For vaporization, he treats with 1 gram per hive box using a “Mite-E-Vape” vaporizer. David drilled a 1/4 inch hole in the back of the bottom board to distribute the acid vapor. You need to add the bottom board if you have a screened bottom hive. Must use a respirator, just as the one Randy mentioned. The respirator needs to have filters for organic acid, paint solvents. Also needed are strong gloves that can take the heat. It only takes a minute to treat each hive. It only impacts the mites on the bees, not the capped brood. If you have capped brood, it is not a good mite treatment. It is a good treatment to use in the winter months. You also need a loose cluster of bees. Therefore, it is not a good idea to treat them on a freezing cold day. You can also do a dribble method which involves putting sugar water that has oxalic acid in it on the bees that are in between the frames. David uses a 60 cc syringe to add the acid. It is also a good method to use on a swarm of bees, or a new package of bees that you get before there is sealed brood. https://entomologytoday.org/2026/03/20/honey-bee-swarms-spread-invasive-mite-tropilaelaps-mercedesae/

The Honey Bee Health Coalition https://honeybeehealthcoalition.org/resources/hive-health-best-management-practices/ is a good website to discover what treatment is best for you to use on your bees in controlling their mite population.
Another good recommendation is to take your cup of bees that you intend to test for mites and put them in a ziplock bag in the freezer. Once they are dead, then do an alcohol wash.
We had the raffle drawing at the end of the meeting for everything except the Nuc. The drawing for the Nuc will be at the end of the April meeting. The Nuclear will need to be picked up on May 9th. Mark Habel won the Zion as donated and made by Randy Austin. Caroline Thompson won the bee suit. Ken Adamson won the uncapping knife.
Hope to see you at our next meeting on April 21, 2026, 6:30 pm to socialize. The official meeting begins at 7 pm: 106 E. Morgan St. Brevard, NC.























