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Topic: oxalic acid

Oxalic Acid Dribble and Sublimation Updates

  Update 28 Oct 2018 Beekeeper Nick Kingan let me know that there’s a nice livestock syringe available from Tractor Supply that can be adjusted to dispense 5 mL per squeeze.  I find the squeezing of this sort of syringe to be tiring to my hand if I’m treating a large number of hives, but...

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Instructions for extended-release oxalic acid (updated 7/22/25)

Extended-release oxalic acid for varroa management Updated 6 June 2025 Legality of use Understand that the EPA doesn’t give “approval to” any pesticide — it only grants registrations for applicants to distribute and sell specific formulated products for which the EPA has approved the label.  That said, the EPA’s mandate for regulation comes from FIFRA...

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