Gypsy Moth control program for 2020 is completed.

The first spraying took place on June 1, 2020 and the second spraying for Gypsy Moth took place Friday, June 5, 2020. 

Members of the public are unlikely to experience any health effects, and no special precautions are necessary or required. Individuals who have concerns should take reasonable precautions to avoid exposure during an application period of the program.

While no special precautions need to be taken, the following measures may be considered by residents living in treatment areas:

 Whenever possible, remain indoors for 30 minutes after spraying to allow for the droplets to deposit onto the tree leaves.

 Bringing laundry, toys and pets indoors before spraying begins.

 Practice good personal and food hygiene (e.g., hand washing after outdoor activities, especially after gardening; leaving outdoor shoes at the door; washing all fruits and vegetables before eating or cooking).

 Covering lawn furniture, outdoor tables, pools, BBQs, play equipment and sandboxes and/or rinsing them off with water after spraying is finished.

 Minimize opening and closing windows and doors during the spraying.

 Shutting off the heating/cooling vents or selecting the recirculate setting.

 Contacting your family physician if you are concerned that a personal medical condition may be aggravated by the spraying.

The City of Sarnia will be administering a Gypsy Moth Control Program by applying a bio-pesticide by helicopter to areas within Sarnia. The helicopter will be flying at low altitudes, approximately 15 metres above tree tops, between approximately 5 and 8 a.m.

The following pesticide will be used: Foray 48B Biological Insecticide Aqueous Suspension (Bacillus thuringiensis subsp. kurstaki strain ABTS-351) Registration No. 24977 under the Pest Control Products Act (Canada). The spray program will occur over two days between May 20 and June 15, 2020. The exact dates and time for the aerial spray are weather dependent. The City will provide up-to-date details on this page and through Twitter and Facebook once the dates have been confirmed.

Pre-emergence monitoring plots have been established throughout the spray zone, and egg hatching and leaf development will be monitored on the trees with pink band on them, see photo with pink ribbon below. This is done to determine the most effective time to complete the aerial spray program. 

For more information, questions or concerns please contact or 519-332-0330 Ext. 3209.

Gypsy Moth Treatment Area

63.5 hectares will be sprayed. 

  • Canatara Park, Lake Chipican Drive
  • Oak Acres Park
  • Lakeshore Rd East of Modeland Rd
  • Colborne Rd N of Michigan, S of Cathcart Blvd East to Errol Rd and  Ridgewood Dr