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Home > Plants, Pests & Pest Control > Pest Management > Gypsy Moth Program > Gypsy Moth Quarantine

Gypsy Moth Quarantine



Female gypsy moth

Nationwide, a system of trapping, treatments, and regulations has kept Minnesota gypsy moth-free for decades, but in recent years moths have been trapped in increasing numbers along the North Shore. Therefore, the Minnesota Department of Agriculture (MDA) enacted a quarantine of Lake and Cook Counties on July 1, 2014, to restrict the movement of potentially infested items and thereby slow the spread.


Attention Loggers- Starting January 1, 2015 all MDA Limited Permits expire annually on April 30.
Cook and Lake Counties are under a gypsy moth quarantine, which restricts the movement of pulpwood, saw bolts, and/or bark and other bark products unless accompanied by a Limited Permit. Annual MDA gypsy moth compliance training is required to obtain Limited Permits. Compliance trainings are conducted annually during the month of April.

Limited Permit training workshops will be offered monthly at the Minnesota Department of Agriculture headquarters in St. Paul (625 Robert St N, St. Paul, MN 55155). Participants must register at least one week prior to the training session that they wish to attend by sending an email to gypsy.moth@state.mn.us.

February 9, 2016 10-11 am
March 1, 2016 10-11 am
April 5, 2016 10-11 am
May 3, 2016 10-11 am
June 7, 2016 10-11 am
July 5, 2016 10-11 am
August 2, 2016 10-11 am
September 6, 2016 10-11 am
October 4, 2016 10-11 am
November 1, 2016 10-11 am
December 6, 2016 10-11 am

If you would like to arrange an individual appointment following a training workshop to discuss or prepare a compliance agreement specific to your facility, or have any other questions or concerns, please contact Plant Pest Regulatory Specialist, Marissa Streifel, at marissa.streifel@state.mn.us or 651-201-6096.

Distribution: Quarantine Maps


General Quarantine Information

Gypsy moth egg mass.
Gypsy moth egg mass

Gypsy moths are expert “hitchhikers” and are most commonly transported as egg masses. The females will lay her eggs on any solid surface.

Regulated Articles include:

  • The gypsy moth, Lymantria dispar L., in any stage of development (egg, larva, pupa, adult)
  • Logs, posts, sawbolts, and pulpwood
  • Bark and bark products
  • Nursery stock
  • Christmas trees, boughs, wreaths and garland
  • Firewood for commercial sale and residential use
  • Outdoor household articles
  • Mobile homes and associated items
  • Any other products, articles, or means of conveyance that present a high risk of artificial spread of gypsy moth

Quarantine violations occur when companies or individuals knowingly transport any life stage of gypsy moth (egg, caterpillar, pupa, or adult) out of the quarantined area without an inspection or a compliance agreement from a state or federal agency which can result in civil or criminal penalties. To obtain a compliance agreement, please contact Arrest the Pest at: 888-545-6684 or email gypsymoth@state.mn.us.

Information for lumber, nursery and other industries:

Nursery stock iconNursery stock

Nursery stock shipped out of a quarantine by a nursery or dealer must be treated or visually inspected and certified pest-free. Shippers must be operating under a compliance agreement with state or federal agriculture agencies prior to moving stock.

Christmas Tree iconChristmas Trees

Trees cut in a gypsy moth quarantined area must be treated during the growing season prior to shipping.  Growers operating under a compliance agreement are eligible to certify, document, and ship loads.

Logging Truck iconLogs, Posts, Pulpwood, Bark and Bark Products

Shippers operating under a compliance agreement must document all loads leaving the quarantine and specify the destination.  Treat or remove any life stages found upon inspection.  Receivers of quarantined products must operate under a compliance agreement and follow the guidelines set within for processing procedures.

Information for tourists and homeowners:

Exterior of a home iconOutdoor Household Articles (patio items, camping equipment, firewood, etc.)

Self-inspection of all outdoor household articles using this checklist (PDF: 1.09 MB / 2 pages) is required in order to move them out of the quarantine. Treat or remove any life stages found upon inspection. Self-inspection using this checklist (PDF: 1.21 MB / 2 pages) is allowable while homeowners are packing up household goods to move interstate or those using a moving company or portable storage must include the completed checklist with shipment.

Mobile Home iconMobile Homes (RVs, mobile workspaces, etc.)

Inspection and documentation are required prior to moving outside of the quarantine.  Qualified Certified Applicators or state/federal agriculture agencies may provide inspection assistance.

Gypsy Moth in Minnesota

The MDA, in partnership with federal, state, tribal, and local officials, has been trapping gypsy moth since 1973 and treating since 1980. Since the first northern Minnesota treatments around Schroeder in 2006, the MDA has taken action to prevent and stifle the growth of gypsy moth populations in Lake and Cook Counties. Populations have now grown to a point where treatments are ineffective and the MDA has to turn to other management strategies to contain the infestation.

The first gypsy moth quarantines were enacted in 1912 in New England. Minnesota is the 21st state to be quarantined for this invasive species. Quarantines in other states have benefited Minnesota’s forest resources by keeping them gypsy-moth free until now. The quarantine will protect uninfested forests to the west and south.

For questions on gypsy moth or the quarantine, call MDA’s Arrest the Pest Hotline at 888-545-6684 or email gypsy.moth@state.mn.us.

Arrest the Pest icon, report sightings by emailing arrest.the.pest@state.mn.us or call 888-545-6684