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City of Winnipeg
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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) (Bacillus thuringiensis var. kurstaki - Btk).

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

Spraying Schedule:

  • To be announced for 2018
Areas to be treated Areas to be treated  
Areas previously treated Areas prviously treated  





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Cankerworm Control Program Map
Tree Pest Caterpillar Control Program

  • Start Date:
  • End Date:

Previous Treatment Dates:

Tree Pest Caterpillar Program Archives

2016 | 2017

*Program was unnecessary


Last update: January 17, 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
Citizens' Information Service
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