65% Liquid Formic Acid

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  • 65% Liquid Formic Acid

65% Liquid Formic Acid

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Formic Acid is used to treat tracheal and varroa mites in honey bee hives.

TIME OF APPLICATION: Do not use when honey supers are in place. Use when outside temperatures are 10° to 30°C and leave hive entrances fully open. Honey supers may go on the hive after the absorbent material containing Tracheal Mite Treatment has been removed from the hive. Pre-Harvest Interval (PHI): Honey: at least 2 weeks from the end of the treatment. DIRECTIONS FOR USE: For Control of Tracheal and Varroa Mites in Colonies in Double Brood Chamber Hives, Standard Langstroth Equipment (bees covering eight to 20 fullsize Langstroth frames or equivalent): All holes in the hive should be sealed except the bottom hive entrance, which should be fully open. Apply 30 to 40 ml of formic acid onto absorbent paper or paper towels placed on the centre of the bottom board or on the top bars of the frames in the upper brood chamber. Alternately, pre-soaked paper material (wood pulp) that holds 30 to 40 ml of formic acid and apply as ready-to-use pads on the top bars of the frames in the upper brood chamber. Do not disturb the colony for two days after each application. Repeat application at five to seven day intervals for a total of three applications. For Colonies in Single Brood Chamber Hives (bees covering four to 10 full size Langstroth frames or equivalent): Apply half the amounts indicated above, using the same method and timing.

This product is shipped as a dangerous goods and within Canada only.



20L and 55L sizes are special order and will require 15 business days to fulfill

  • If you are not satisfied with your purchase from our online store, you may return the unused product complete with original packaging and tags intact to the Online Store within 7 days of receiving the item for a refund less a 15% restocking fee  (transaction fees) or 30 days for a store credit.

    Due to bio security concerns, no products that have come into contact with bees, honey or wax can be accepted for return or exchange.

    All returns must be authorized via email or phone prior to shipping. Please e-mail info@workerandhive.com or call 403-764-8177 to start the return process.

    Discounted items or items purchased with a promo code are considered a final sale.  Discount codes may not be retroactively applied to previous orders.

    No exceptions.

  • Beekeeping products can be tough to ship! Here is our shipping policy.

    Shipping Policy

    Thank you for supporting Worker and Hive Bee Supply. The following are the terms and conditions that constitute our Shipping Policy.

    Shipment processing time: All orders are processed within 2-3 business days. Orders are shipped Tuesday through Friday, excluding holidays. If we are experiencing a high volume of orders, shipments may be delayed by a few days. Please allow additional days in transit for delivery. If there will be a significant delay in shipment of your order, we will contact you via email or telephone. 

    Shipping rates & delivery estimates: Shipping charges and estimated delivery times for your order will be calculated and displayed at checkout. Please contact us directly should you feel that the quote is inaccurate and we will manual calculate order shipping rates. Although delivery delays can occasionally occur, we value your time and make every effort to to get your purchased items to you quickly. Occasionally, the carrier you have selected may not be the best option for delivery and we will substitute a comparable delivery option for your order. 

    Shipment to P.O. box addresses may not always be available for carriers other than Canada Post. Please confirm that your requested carrier (Purolator, UPS etc..) services your address prior to placing your order. We can not be responsible for unclaimed packages and will only refund the difference between product price and shipping fees. 

    Shipment Confirmation & Order tracking: You will receive a Shipment Confirmation email once your order has shipped containing your tracking number(s). The tracking number will be active within 24 hours.

    Customs, Duties and Taxes: Worker and Hive Bee Supply is not responsible for any customs and taxes applied to your order. All fees imposed during or after shipping are the responsibility of the customer (tariffs, taxes, etc.).

    Damages: Worker and Hive Bee Supply is not liable for any products damaged or lost during shipping. If you received your order damaged, please contact the shipment carrier to file a claim. Please save all packaging materials and damaged goods before filing a claim.

    International Shipping Policy: We currently only offer international shipping to the U.S. Please contact us directly should you wish to have your purchase shipped to a country other than Canada or U.S.

    Returns Policy: Our Return & Refund Policy provides detailed information about options and procedures for returning your order. It can be found HERE.

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