Browntail Moth

Browntail moth caterpillar

Update 6/3/2019: Whitney Tree completed the spraying program overnight last night.


Update 5/29/19: Due to weather conditions, spraying will not be conducted tonight. It will resume Friday, May 31 at 10pm. 


Update 5/28/19: Roads completed: West Side Rte. 88, Both sides of 88 from Old Mill to Rte. 1, Raymond, Bartlett, & Kilborn, Waites Landing, Landing Woods Lane, Old Mill Rd., White Rock Dr., Underwood Rd. (West), Carmichael, Hedgerow, Rte 1, Depot Rd, Lunt Rd., Rte 88 line to Town Landing Rd.  – Waterside, Johnson Rd. (All), Arborside Dr., Northbrook Dr., Harriette St., Woodward Ln., Valley Ave., Shady Ln., Casco Terrace, Mariner Ln., Town Landing Rd., Completed Foreside Rd. (East), Ameroscoggin Rd., Ramsdell Rd., Knight St., Woodville Rd., Woods Rd (part).


Update 5/24/19: Whitney Tree will spray from 10:00 pm to 7:00 or 8:00 am every day from now until they finish, depending on weather. Their goal is to finish the spraying this weekend. Town Hall is closed over the weekend and on Monday for Memorial Day, but we will monitor email for questions or concerns at mtryon@falmouthme.org.

Roads completed: West Side Rte. 88, Both sides of 88 from Old Mill to Rte. 1, Raymond, Bartlett, & Kilborn, Waites Landing, Landing Woods Lane, Old Mill Rd., White Rock Dr., Underwood Rd. (West), Carmichael, Hedgerow, Rte 1, Depot Rd, Lunt Rd.


UPDATE 8:45 pm, 5/23/19: The rain is now forecast to end in the early morning hours so Whitney Tree will do some limited spraying tonight. In consideration of the last minute nature of this change, and the announcement earlier today, they will limit spraying to the commercial areas of Route 1 and avoid residential areas. 


UPDATE 5/23/19: Due to rain in the forecast, Whitney will not be spraying overnight tonight. They plan to resume spraying tomorrow (Friday, May 24 pm to Saturday, May 25 am) in the overnight hours, depending on weather conditions. 

Roads completed: West Side Rte. 88, Both sides of 88 from Old Mill to Rte. 1, Raymond, Bartlett, & Kilborn, Waites Landing, Landing Woods Lane, Old Mill Rd., White Rock Dr., Underwood Rd. (West), Carmichael, and Hedgerow

When they begin spraying again, they will continue Rte. 88 and do the Foreside roads then progress to Rte. 1.


UPDATE 5/22/19: WHITNEY TREE WILL BEGIN THEIR SPRAYING A COUPLE HOURS EARLY TONIGHT DUE TO FAVORABLE WEATHER CONDITIONS. They will begin spraying at 10:00 pm instead of 12:30 am. They will have two crews spraying, so all residents in the spraying area should be prepared for spraying. 


UPDATE 5/20/2019: Whitney Tree Service has informed us that they will begin spraying on Thursday, May 23 at 12:30 am. They will start on Route 88 in Cumberland and progress south. Updated details on the spraying schedule will be posted here each day during the spraying program.


The Town of Falmouth will conduct a streetside spraying program in May 2019. We anticipate spraying will take place either the week of May 20 or May 27. This page will be updated with a detailed spraying schedule as soon as it is available. This program will be substantially similar to the program conducted in 2018 but has been expanded to cover more area. Details on the 2018 spraying program can be found at the bottom of this page. The list of roads to be treated and the opt-out form for property owners in the spray area are below.

Browntail Moth Assessment and list of roads to be treated - 2019

Refusal form - Due to Town Hall no later than April 25, 2019


The Towns of Falmouth and Freeport, in conjunction with the Maine Forest Service, sponsored two public informational sessions on Browntail Moth Caterpillars. The Falmouth session was held on Wednesday, October 17, 2018 at 6:00 pm at the Falmouth Elementary School cafeteria at 58 Woodville Road. Presenters included Allison Kanoti from the Maine Forest Service; Rebecca Miller of Northern New England Poison Control Center; Marty Folsom, Senior Consulting Arborist from Lucas Tree; and Falmouth Town Manager Nathan Poore. Topics discussed included: identifcation of Browntail Moth Caterpillars and their overwintering webs; precautions residents should take; and the pros and cons of various treatment options, including chemical applications.

You can view the recording of that meeting by following this link: click here 

You can see the presentations offered by the speakers clicking on each of the following links: Maine Forest Service presentation, Public Health presentation, Town response presentation

For more information please contact Melissa Tryon at mtryon@falmouthme.org or 699-5335. 


Update 8/3/2018: Last week, officials from several communities including Falmouth met to discuss the growing browntail moth infestation and a possible regional approach to combating it. Over the next few months, the towns will be working together to consider what options might be available, realistic, and effective for our communities.

Officials are also planning to host regional public forums this fall to inform members of the public of their progress and receive feedback. More information on these forums will be posted as soon as they are scheduled. 


This past spring, the Town conducted a spraying program of street trees in the public right of way to combat the infestation of Browntail moths. The Town's spraying program was completed on Friday, May 25, 2018. The Town’s contractor, Whitney Tree Service, sprayed a chemical called Conserve SC from the roadway with a truck mounted mistblower to treat infested trees on the public roads marked in yellow on the map linked in the list below. Only those trees located in the public right of way that had nests were sprayed as part of this project. Property owners with nests on other parts of their property need to hire a qualified contractor.

For more information, contact Melissa at Town Hall at mtryon@falmouthme.org or 699-5335.

Resources for more information

Falmouth Spraying Project Frequently Asked Questions

Treatment Map

Browntail Moth Assessment and list of roads to be treated

Safety Data Sheet - Conserve SC   

Refusal form - Due to Town Hall no later than April 26

How to identify Winter Nests

Maine CDC Browntail Moth Fact Sheet

Maine DACF Browntail Moth brochure

Websites for more information on Browntail Moths: 

Maine Forest Service: http://www.maine.gov/dacf/mfs/forest_health/insects/browntail_moth.htm

State of Maine "Got Pests" site: http://www.maine.gov/dacf/php/gotpests/bugs/browntail-moth.htm

Maine CDC: http://www.maine.gov/dhhs/mecdc/infectious-disease/epi/vector-borne/brow...