Weather Forecast


Second gypsy moth treatments planned June 19

Aerial treatments for gypsy moth are planned in Cloquet, Two Harbors and Duluth. Duluth News Tribune file photo

On Tuesday, June 19, The Minnesota Department of Agriculture (MDA) is planning a second treatment to eradicate gypsy moth infestations in areas in Cloquet, Two Harbors, Duluth and White Iron Lake near Ely. This is dependent on the weather at the time.

A gypsy moth. File photoThe aerial treatments will start as early as 5:15 a.m. in Duluth, followed by White Iron Lake near Ely, Two Harbors and Cloquet, which will be completed around noon. If weather conditions are not favorable the entire time, any remaining areas will be treated the next day, Wednesday, June 20, starting as early as 5:15 a.m.

The low-flying airplane will be traveling up to a half mile outside the treatment areas as it navigates through the gypsy moth infestation sites. The MDA apologizes for any inconvenience caused by the noise of the plane.

The treatment product, bacillus thuringiensis var. kurstaki (Btk), is a biological product that is organic certified for food crops. It has no known health effects for humans, pets, birds, fish, livestock and bees. However, you can avoid it by staying indoors during the treatment and keeping windows closed until a half hour after application. Any residue, which does not cause damage to outdoor items, can be removed with soapy water.

The MDA has set up an Arrest the Pest Info Line at 888-545-MOTH with the latest details about treatment dates and times. On the morning of the treatments, residents may call the number and press 0 to speak to someone. The MDA's website,, also has information about gypsy moths and control efforts, and residents can sign up for email or text updates about treatment progress.

Details of treatment areas:

  • Cloquet – A 460-acre area that runs north of state Highway 45 up to Pearl and State streets.
  • Two Harbors – A 526-acre area that is centered on the intersection of Shoreview Road and Seventh Avenue.
  • Duluth – A 352-acre area in the Lakeside neighborhood that begins approximately at Oneida Street on the south and North 52nd Avenue East on the east and extends northwest past Skyline Drive.
  • White Iron Lake, rural Ely – A 77-acre area on White Iron Lake near the intersections of Shady Rest Road and Big Rock Drive.

Separate maps of these areas can be found at Click on “2018 Gypsy Moth Treatments.”