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City of Winnipeg
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Until Election Day
on October 24

Insect Control

Tree Pest Caterpillar Spraying Schedule 2018

Tree Pest Caterpillar Control Program

Tree Pest Caterpillar treatment crews will only be treating selected streets within each IMA that have or are at risk of significant defoliation. Not all streets within an IMA will be treated.

IMAs to be sprayed will be announced at least 8 hours in advance of spraying operations.

The City of Winnipeg controls forest tent caterpillar and cankerworms on City-owned trees using the biological insecticide Foray® 48B (Foray® 48B Label / Foray® 48B MSDS) or Bioprotec® CAF (Bioprotec® CAF Label / Bioprotec® CAF MSDS) (Bacillus thuringiensis var. kurstaki - Btk).

Citizens can register for notifications using the following link: Tree Pest Caterpillar Control Program Notification

Spraying Schedule:

  • June 18, 2018 - Tree Pest Caterpillar Control Program Has Concluded
Areas to be treated Areas to be treated  
Areas previously treated Areas previously treated  





Click areas to zoom

Cankerworm Control Program Map
Tree Pest Caterpillar Control Program

  • Start Date: May 22, 2018
  • End Date: June 13, 2018

Previous Treatment Dates:

  • June 13th, 2018 - IMA 32
  • June 12th, 2018 - IMA 32
  • June 11th, 2018 - IMA 33, 32 and 39
  • June 10, 2018 - Weather Delay
  • June 7th, 2018 - IMA 33 and 39
  • June 6th, 2018 - IMA 33
  • June 5th, 2018 - IMA 40 and 33
  • June 4th, 2018 - IMA 40
  • June 3rd, 2018 - IMA 45 and 51
  • May 31st, 2018 - Weather Delay
  • May 30th, 2018 - Weather Delay
  • May 29th, 2018 - Weather Delay
  • May 28th, 2018 - IMA 51
  • May 27th, 2018 - IMA 42, 45 and 51
  • May 25th, 2018 - IMA 42 and 45
  • May 24th, 2018 - Weather Delay
  • May 23rd, 2018 - IMA 42
  • May 22nd, 2018 - IMA 42

Tree Pest Caterpillar Program Archives

2016 | 2017


Last update: June 18, 2018
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
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