Oxalic acid dribble varroa mite treatment - Ask Extension
Anyone using oxalic acid mixed with water + glycerin versus mixing with sugar syrup to treat against varroa mites? Formula besides Randy Oliver's?
Knowledgebase
Oxalic acid dribble varroa mite treatment #930169
Asked April 30, 2026, 1:40 PM EDT
Anyone using oxalic acid mixed with water + glycerin versus mixing with sugar syrup to treat against varroa mites? Formula besides Randy Oliver's?
Gratiot County Michigan
Expert Response
The best place to look for directions for miticides are the EPA labels, as that will tell you both how to mix things up, and what protective gear that you should be using: https://www.epa.gov/pollinator-protection/epa-registered-pesticide-products-approved-use-against-varroa-mites-bee-hives
The label for Api bioxal (which is an OA in powder form), will tell you the recipe for how to mix it in sugar water if you are planning on using the dribble method (which we use a lot), or the spray method (for packages).
The addition of glycerin by Randy is for making a product that is long term - that would work like VarroxSan and stay in the hive for weeks.
The label for Api bioxal (which is an OA in powder form), will tell you the recipe for how to mix it in sugar water if you are planning on using the dribble method (which we use a lot), or the spray method (for packages).
The addition of glycerin by Randy is for making a product that is long term - that would work like VarroxSan and stay in the hive for weeks.
