- Adult: Dark-brown moth with bean-shaped markings on the forewings.
- Larvae: Dull brown with a broad gray stripe running down the back that is subdivided into triangular areas. They also have round, coarse skin granules, and grow to about 1" long.
- Eggs: Laid in flower heads of plants in or near fields of host plants.
Timing of damage: VE to V5
Type of damage: Mostly leaf feeding. Rarely, it cuts plants off at or below the surface.
Scouting: Note the type of damage, then dig through the soil surrounding damaged plants to look for larvae.
Economic threshold: Usually not an economic threat. Treat if 5% of the field is damaged and
growing conditions are poor.