September 23, 2019

HopGuard Recieves Section 18 Emergency Exemption in Maine

HopGuard Application

HopGuard Application

Maine State Apiarist Tony Jadczak reports that he received word of EPA approval today for a “Section 18 Emergency Exemption” in Maine for the use of HopGuard.

He notes that only 3 applications are allowed for the remainder of 2012, not 6 per the following paragraph.

Section 18 of Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA) authorizes EPA to allow an unregistered use of a pesticide for a limited time if EPA determines that an emergency condition exists. The regulations governing Section 18 of FIFRA (found at Title 40 of the Code of Federal Regulations, part 166), define the term “Emergency Condition” as an urgent, non-routine situation that requires the use of a pesticide(s).  Such uses are often referred to as “emergency exemptions,” “Section 18s,” or simply “exemptions.”

More information:



STATE:                  Maine
CHEMICAL:         Potassium Salt of Hop Beta Acids (HopGuard)
CROP / SITE:        Honey Bees / All counties in the state of Maine
PEST:                      Varroa destructor
EFFECTIVE:         August 1, 2012 to December 31, 2012


Product may cause eye irritation – flood eyes with plenty of water if contact is made with eyes. Wearing protective eyewear when handling treated strips will reduce the potential for eye irritation. Avoid contact with skin, eyes or clothing. Wash thoroughly with soap and water after handling and before eating, drinking, chewing gum or smoking tobacco. Remove and wash contaminated clothing before reuse.


Applicators must wear chemical-resistant gloves when handling treated strips.


Package – Strips must be applied at the rate of three half strips per 2 lb. or 3 lb. package of adult worker bees. Cut strips in half and attach three half strips to the top of package so that the strips are hanging within the package. Place bees in the package after the strips are attached. The bees should remain in contact with the strips for at least 48 hours.

Colony – Strips must be applied at the rate of one strip per five deep combs covered with bees in each brood super or for example two strips per ten frame brood super (chamber) when all the combs are covered with bees. Strips are to be placed only in the brood chamber (not in the honey super). Folded strips must be opened and hung over one of the center brood frame with one-half of the strip on each side of the frame. If using a second strip, apply it to an adjacent center frame about four inches away from the first strip. Strips must be placed hanging between frames, and within the colony cluster, and not laid on top of the frames. Leave the strips in the colony for four weeks. Retreat, as necessary, up to three times for the remainder of 2012.

A maximum of six (6) applications per year (12 strips or approximately 23.0 grams of potassium salt of hop beta acids) per ten frame brood super (chamber) is allowed. This limit includes all applications to the package (if applicable) and to the colony. Application timing (usually during spring, summer or fall) should be based on the levels of Varroa mites observed in the colony. Users may not take honey and wax from the brood chambers, only from the honey supers. For optimal results, apply HopGuard when little to no brood is present in the colony.

The use directions must be in the possession of the user at the time of application.

Any adverse effects resulting from the use of HopGuard under this emergency exemption must be immediately reported to the Maine Board of Pesticides Control at 207-287-2731.


Using this product in rotation with another approved miticide with a different mode of action will decrease the potential for Varroa mites to develop resistance. If the strip remains in the hive more than 4 weeks remove.

Manufactured by: BetaTec Hop Products, Inc., A Division of John I. Haas, Inc., P.O. Box 1441, Yakima, WA 98907


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