- Adult: Small, gray, bristly fly with black legs. It is less than ¼" long.
- Larvae: White to yellow-white maggot with tough skin, pointed head and round tail.
- Eggs: Laid singly or in clusters in moist soil; each female lays an average of 270 eggs.
Timing of damage: VE to V4
Type of damage: Maggots burrow into seeds and eat the germs, reducing stands.
Scouting: Dig up ungerminated seeds and look for maggots.
Economic threshold: None established; however, seed treatment is recommended if planting into
heavily manured or high-residue fields.