Official Pest Report

Official Pest Reports are provided by National Plant Protection Organizations within the NAPPO region. These Pest Reports are intended to comply with the International Plant Protection Convention's Standard on Pest Reporting, endorsed by the Interim Commission on Phytosanitary Measures in March 2002.

Update to the detection of Verticillium stripe of canola (Verticillium longisporum) in Canada

Country: Canada

Title: Update to the detection of Verticillium stripe of canola (Verticillium longisporum) in Canada

William Williams, National Manager of Grains and Oilseeds section, Canadian Food Inspection Agency (CFIA), (001) 613-773-7430.


The Canadian Food Inspection Agency (CFIA) confirmed the presence of Verticillium longisporum (Verticillium stripe) in a canola field at a single location in Manitoba and issued an Official Pest Report on the NAPPO Phytosanitary Alert System on 01/15/2015.  Prior to this detection, V. longisporum had not been reported in Canada.

Consistent with the International Plant Protection Convention (IPPC) and its international standards for phytosanitary measures (ISPMs), the CFIA implemented provisional measures to contain the spread of the pest and completed a pest risk assessment while the regulatory status of V. longisporum was being determined.  

To make an informed regulatory decision, the CFIA conducted a national survey of canola fields between August and November of 2015.  This survey confirmed the presence of V. longisporum in six provinces: British Columbia, Alberta, Saskatchewan, Manitoba, Ontario, and Quebec. Based on the results of the survey and the pest risk assessment, a risk management decision (RMD) document was prepared recommending that V. longisporum not be regulated as a quarantine pest in Canada.  The RMD was circulated for review and comments by stakeholders between March 15 and May 15, 2017 with stakeholders broadly supporting the CFIA’s recommendation. 

The CFIA is formally notifying that V. longisporum is widely distributed in Canada.  The regulation of V. longisporum is not warranted, nor is it cost-justifiable to implement official measures to control further introductions or domestic spread of this pest.

Learn more about Verticillium stripe.

Posted Date: Sept. 13, 2018, 9 a.m.