Dandelion root maggots are the larval stage of certain flies that develop underground and feed on plant roots. These insects primarily target dandelions and related plants but may occasionally affect garden crops or turfgrass when populations are high.
The larvae are small white maggots that tunnel into plant roots, weakening plants and sometimes causing wilting or reduced growth. Because they live beneath the soil surface, infestations often go unnoticed until plant damage becomes visible.
Quick Facts
- Order: Diptera
- Habitat: Lawns, gardens, fields
- Diet: Plant roots
- Status: Minor lawn and garden pest
Identification
Larvae are legless maggots measuring about 6–10 mm in length. They are pale white or cream-colored and live in the soil near plant roots.
Adult flies resemble small gray house flies and are often difficult to distinguish from other common fly species.
Distribution
Dandelion root maggots occur throughout temperate regions where dandelions grow. Lawns, meadows, and unmanaged fields provide ideal habitats.
Life Cycle
Female flies lay eggs in soil near host plants. After hatching, larvae feed on plant roots for several weeks before pupating underground. Adult flies emerge later in the season to reproduce.
Pest Status
Because they mainly attack weeds, these insects rarely cause serious economic damage.