Several species of cutworms can be present in fields. They range in colour from shiny opaque, to tan, to brownish-red with chevron patterning. Cutworm biology, species information, plus monitoring recommendations are available in the Prairie Pest Monitoring Network’s Cutworm Monitoring Protocol. Also refer to Manitoba Agriculture and Rural Initiatives cutworm fact sheet which includes action and economic thresholds for cutworms in several crops.
More information about cutworms can be found by accessing the pages from the new "Field Crop and Forage Pests and their Natural Enemies in Western Canada: Identification and Field Guide". View an excerpt of ONLY the Cutworm pages from the new "Field Crop and Forage Pests and their Natural Enemies in Western Canada: Identification and management field guide". The guide is available as a free downloadable document as both an English-enhanced or French-enhanced version.
For Manitobans....The most recent Insect Update includes great photos of dingy and redbacked cutworms plus monitoring tips which include how to discern these two species from one another.
For Albertans..... Cutworms have been reported throughout the province the past week! If you find cutworms, please consider using the Alberta Pest Surveillance Network’s “2016 Cutworm Reporting Tool”. Once data entry occurs, your growers can view the live 2016 cutworm map.
A screen shot of the live map has been retrieved (25May2016) below for your reference.