Gypsy Moth Program

The Gypsy Moth Life Cycle with moths pictured.

The gypsy moth is the most damaging exotic species ever to be introduced to North America. The Gypsy Moth's ability to eat more than one (1) square meter of leaf foliage during its caterpillar stage has defoliated millions of acres of trees and shrubs since being brought to the United States in 1869.

NOW HIRING! We are hiring for the Gypsy Moth Suppression Field Crew positions. Please apply here.

Legal Notice for Gypsy Moth Treatment

The treatment for gypsy moth in Roscommon County


MONDAY --- MAY 22, 2017

Since unforeseen variables could change this date, stay tuned to the following radio stations for further announcements:

WUPS 98.5FM, WGRY 100.3FM, WQON 101.1FM, and WGRY 1230AM

The material being applied is Foray 48B - Certified for Organic Gardening

This material contains Bacillus thuringiensis, a soil bacterium specifically lethal to 1st through 3rd instar feeding caterpillars. 

This material will be aerially applied by:


  3473 N. SHEPARDSVILLE RD; OVID MI 48866 (989) 834-5067

  This application will occur in low wind, high humidity conditions typically associated with early morning or mid evening.

Once spraying has begun, the exact day and time an individual block will be sprayed cannot be known because of variables in the weather, mechanical difficulties, and pilot preference. 

Knowing the acreage involved in the 2017 program, the spray planes will be operating in the county for a minimum of 1 day.

If you have any questions or concerns prior to the start of this project contact:

Roscommon County Gypsy Moth Suppression Program

500 Lake Street, Roscommon, MI 48653 (989) 275-7135

(See GREEN Spray Season Maps Tab)

 Conference Room 102 during the following dates:
  Canceled--Wednesday - MAY 10, 2017 at 11:30 am
Wednesday - SEPTEMBER 13, 2017 at 11:30 am
   Tuesday - NOVEMBER 21, 2017 at 11:30 am

The Michigan State Law prohibits a Gypsy Moth Survey Team from entering your property to look for egg masses if any of these types of signs are displayed at the entrance:
  • Properties marked - “No Trespassing” or “Private and Gated/cabled” or “Private - No Trespassing”
  • Private driveways marked - “Private - Do Not Enter” or “No Trespassing” or “Private Driveway-Gated or Cabled”
To grant permission and be surveyed --- put wording below your sign that says: “Except Gypsy Moth” or contact the program office for a sticker.

Do Not Remove New Gypsy Moth Egg Masses
It could eliminate you from the Spring Treatment Season 
  • The Fall Survey Crew needs to observe and count the egg mass where it was laid by the female.