Ontario’s Niagara Parks to Undertake Gypsy Moth Spray Program to Protect Tree Canopy

Spraying to be conducted at two identified locations to combat the damaging effects of the invasive insect species

A News Release from the Niagara Parks Commission in Niagara, Ontario

Posted May 2, 2019 on Niagara At Large

Niagara Falls, Ontario – In collaboration with Trees Unlimited and Zimmer Air Services Inc., Niagara Parks will be conducting an aerial spray program to protect foliage at Paradise Grove and Upper Whirlpool Woods, beginning on May 19 (weather permitting).

Cycling along the trails on Niagara Parks’ lands bordering the Niagara River. Niagara Parks Commission. file photo

These two locations were identified by Niagara Parks’ environment team as having the highest egg mass density of gypsy moths, a non-native invasive insect species that has spread into the central portion of Niagara, including patches in Niagara-on-the-Lake and along the Lake Erie shoreline.

The same biological insecticide that was used in the 2008 spraying program will be used for the 2019 application, which is made of naturally occurring soil bacteria that targets only spring caterpillars and does not harm other insects, mammals or birds.

Niagara Parks will be hosting a Public Information Centre on the topic on May 9, 2019, at the Niagara Glen Nature Centre, from 4:30 p.m. to 6:30 p.m. Interested residents are invited to attend to learn more.

To register, please contact Niagara Parks Guest Services at info@niagaraparks.com or 1.877.642.7275.

Gypsy Moth Spraying Schedule

WHEN:   Two aerial spray applications by a low flying helicopter will be required. Application timelines are approximate and may vary considerably due to the weather, leaf cover and other factors. The first application is tentatively scheduled for May 19 – 22 and the second is tentatively scheduled for May 26 – June 2. Please note all dates are weather permittin

TIME:   Pending weather and conditions, spraying will take place between 5 a.m. – 7 a.m.


  • Paradise Grove – Located at the corner of John St. and Niagara Parkway in Niagara-on-the-Lake;
  • Upper Whirlpool Woods – Wooded area surrounding the Whirlpool Golf Course.

About Niagara Parks

Since its establishment in 1885, Niagara Parks has remained a self-financed agency of the Ontario Ministry of Tourism, Culture & Sport, entrusted to preserve and protect the land surrounding Niagara Falls and the Niagara River. Today, Niagara Parks boasts gardens, a horticulture school, recreation, golf courses, restaurants, heritage and historic sites, gift shops and, of course, Niagara Falls. In short, natural landscapes, history, family fun, hiking, culinary delights, attractions and adventure.

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