Cabbage Root Fly identification

Organic Control Profile

Cabbage Root Fly

Delia radicum

12
Plants Affected
3
Natural Enemies
5
Control Strategies

Cabbage Root Flies are small flies whose larvae infest the roots of cabbage and related crops, leading to wilting and stunted growth. Their presence is often indicated by discolored, damaged roots.

Adults are small and dark, while larvae are creamy white maggots that tunnel through roots, disrupting water and nutrient uptake.

More identification photos — verified field observations

Organic Control Methods

Prevention

Practice crop rotation and remove plant debris to reduce larval habitat; monitor fields early in the season.

Biological Controls

Encourage beneficial soil microbes, parasitic nematodes, and predatory insects that target the larvae.

Cultural Practices

Improve soil health with organic amendments and ensure proper drainage to deter breeding.

Mechanical & Physical

Use floating row covers to block adult flies and deploy sticky traps to capture them.

Organic Sprays

Apply neem oil or bio-nematicides during early infestation to reduce egg laying and larval survival.

Natural Enemies

Plants Affected — 12 in Database