|Dingy cutworm larva (cc John Gavloski, Manitoba Agriculture)|
Keep an eye on fields that are “slow” to emerge, are missing rows, include wilting or yellowing plants, have bare patches, or appear highly attractive to birds – these are areas warranting a closer look. Plan to follow-up by walking these areas later in the day when some cutworm species move above-ground to feed. Start to dig below the soil surface (1-5 cm deep) near the base of a symptomatic plant or the adjacent healthy plant. If the plant is well-established, check within the crown in addition to the adjacent soil. The culprits could be wireworms or cutworms.
For Albertans..... If you find cutworms, please consider using the Alberta Pest Surveillance Network’s “2017 Cutworm Reporting Tool”. The map now has reports of pale western and redbacked cutworms in central and southern Alberta so view the live 2017 cutworm map.
Remember the NEW Cutworm Field Guide is free and downloadable in 2017!