Delaware Beekeepers                           Association

Oxalic Acid Use based on EPA Advisory

  • 10 Jan 2024 5:55 AM
    Message # 13299222

    Emily could help us understand this Advisory in a manner that we can understand what can be used and what can't be used from a Federal and State level.  Personal Use versus Commercial Use?,control%20varroa%20mites%20in%20beehives
    Last modified: 10 Jan 2024 5:56 AM | Anonymous
  • 11 Jan 2024 12:59 PM
    Reply # 13299932 on 13299222

    Products need to be registered at both the state and federal level. A recent EPA advisory for beekeepers listed two new oxalic acid products, Ez-Ox and VarroxSan. The EPA advisory also reminded beekeepers that products must be used according to the directions on the product label. Deviating from the label is a violation of federal law. 


    VarroxSan is oxalic acid in strip form. VarroxSan is not registered in Delaware yet. I asked a representative at Vita Bee Health when we can expect them to register in Delaware. I received a response saying that they expect it to take about 6 months until VarroxSan is available for sale in Delaware. That would be around July or August of this year.


    Ez-Ox is oxalic acid in tablet or powder form. Ez-Ox is registered in Delaware. Ez-Ox has two application methods, vaporization and solution (dribble). The solution method is at the same rate as Api-Bioxal, but the vaporization method allows a higher dose. 

    In addition to the two new oxalic acid treatments, there is a new amitraz-based treatment called Amiflex. 


    Amiflex is a new gel-based application method for amitraz (the active ingredient in Apivar strips). Amiflex is registered in Delaware.  Amiflex is a restricted use pesticide (RUP), meaning it requires a Pesticide Applicator license to apply it.


    While checking on the status of these new chemicals, I also looked up the old products to make sure they are still registered. Unfortunately, Hopguard 3 is no longer registered. I checked with the registrant and they confirmed that this was not an oversight on their part. Hopguard 3 has been discontinued in Delaware due to insufficient sales.

    Last modified: 25 Jan 2024 3:34 PM | Anonymous
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