





Nassenheider Evaporator
760-0100
Price excludes GST
Please order in multiples of 2 units. That is is how they are packaged at the factory, with 46 evaporators packed per carton. Please note: the evaporator is sold without 65% Formic Acid. Click here for Formic Acid.
Take control of varroa mites effortlessly with the Nassenheider Professional Evaporator. This long-term evaporation system is designed for safe and effective varroa treatment in beehives. Perfect for autumn (and Spring) varroa control, it utilizes a 65% formic acid (FA) solution for consistent evaporation over a 20 day period when using the No.2 wick. Beehives with high infestations can be brought under control in a relatively short space of time. In areas with high re-infestation issues, it is recommended to do 2 treatments. For treatments in summer or during a honey flow, we recommend using Oxalic Acid Extended-release (OAE) strips.
Need a rim? Click Here.
Want mesh on the bottom of the rim? Shop Here
Evaporation rates:
With 65% Formic Acid, it is recommended to evaporate between 9 and 22 mill per day per full depth brood box. 22 mill per day in one brood box is at a level where it is thought to disrupt the mites under the cell cap. But that high level of exposure is not necessary for good mite control. 14 mill per day will kill virtually all the phoretic mites. (Mites on bees) Drone cells are capped for 14 days so as long as there is an application killing virtually all phoretic mites for a continuous 15 day period then good varroa control can be accomplished.
Safety.
Formic Acid liquid, and the gas from the liquid, can damage skin and eye tissue. It is very important that suitable protective clothing is worn. It is especially important when filling bottles from the bulk supply containers. A respirator mask with face protection, nitrile gloves, PVC apron and overalls should all be worn. Replacing empty bottles with full bottles in the field requires nitrile gloves as a minimum. Stand upwind when doing this procedure.
In a Featherston field trial, where autumn varroa control was historically challenging, the Nassenheider Evaporator delivered outstanding results, significantly reducing mite levels and improving colony health. Read the full blog HERE.
For more info and FAQ: Click here.
Engineered for performance and safety, the Nassenheider Professional Evaporator is trusted by beekeepers to protect their hives effectively. With 46 units per carton, stock up for your apiary or share with fellow beekeepers. Order in multiples of 46 for the best value!
Use with 65% Formic Acid: Available here.
Nassenheider Bottle - 250ml
760-0105
Price excludes GST
Make your varroa treatments more efficient with this spare 250ml bottle, designed to use with the Nassenheider Professional Evaporator. This is ideal for beekeepers who want to perform a second treatment without needing to refill the original bottle or those who prefer to pre-fill multiple bottles before heading to the apiary.
A simple, cost-effective upgrade for serious beekeepers using the Nassenheider Evaporator.
Order now to streamline your varroa treatments.
Formic Acid 65%
760-0101
Price excludes GST
Important! Formic Acid can't be shipped to Rural Addresses. See shipping details at the bottom of this page or contact us to discuss your options. Shipping will take a few extra days. Temporary Shipping Delay: we are currently experiencing delays in the shipping time of formic acid, which may take 2 to 3 weeks for delivery. We are actively working to resolve this issue and appreciate your patience. Thank you for your understanding!
Reliable and effective varroa mite control – 65% Formic Acid is a trusted treatment used in beekeeping to combat varroa mites. Specially prepared for use with the Nassenheider Professional Evaporator, this solution delivers consistent vaporization over 20 days, ensuring healthier, stronger colonies.
Why Use 65% Formic Acid?
Simply fill your Nassenheider Evaporator with the appropriate amount of 65% Formic Acid and allow it to evaporate gradually over 20 days for optimal varroa control. Always handle with care and follow safety guidelines.
Formic Acid is classified as a Dangerous Good (DG), which means special shipping conditions apply. The shipping cost varies depending on the quantity purchased, but bulk orders offer better value.
1.15kg Bottles:
23kg Jerry Cans:
Getting the Shipping Rate:
After adding items to your cart, proceed to checkout to view the estimated shipping cost. If the freight charge appears excessive, return to your cart and submit a quote request for a more accurate shipping rate.
Need assistance? Contact us for help with bulk shipping options.