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Insect Control

Dutch Elm Disease

Elm Bark Beetle Control Program 2021

The City of Winnipeg will treat American, Siberian and Japanese Elm trees on public and private property utilizing Pyrate® 480EC (Pyrate® 480EC Label / Pyrate® 480EC SDS) (chlorpyrifos) weather permitting. The program is intended to control elm bark beetles, the carriers of Dutch Elm Disease (DED).

Treatment will occur between the hours of 5:00 a.m. and 5:00 p.m., weather permitting.

Treatment will be conducted using Pyrate 480 EC® (chlorpyrifos), a chemical product sprayed directly onto the lower 50 centimetres of the tree trunk. This product has been approved for use in Canada by Health Canada’s Pest Management Regulatory Agency, and will be used in accordance with federally approved label directions by licensed pesticide applicators.

Citizens can register for notifications using the following link: Elm Bark Beetle Control Program Notification.

Type in your address and find out in what insect management area you reside.

Spraying Schedule: Program Concluded October 22, 2021

Areas to be Treated Areas to be treated
Areas that have been Treated Areas previously treated




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Elm Bark Beetle Control Program Map

Elm Bark Beetle Control Program

  • Start Date: September 13th, 2021
  • End Date: October 22nd, 2021

Elm Bark Beetle Control Program Archives

2019 | 2020


Last update: October 25, 2021
Contact Us
Bugline: 311
or 1-877-311-4WPG
Media inquiries: 204-986-6000
311@Winnipeg.ca

Administrative Office and Research Laboratory
1539 Waverley Street
Winnipeg MB R3T 4V7

Operations Base
3 Grey Street
Winnipeg MB R2L 1V2
Citizens' Information Service
Search by address
to find out your insect management area.

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