Turnip Sawfly

Natural Habitat

Gardens, agricultural fields, and meadows where brassica crops are present

Diet & Feeding

Adults feed on flower nectar and pollen; larvae feed on the leaves of cabbage, turnips, and oilseed rape

Behavior Patterns

Adults are active from spring to autumn, often seen resting on leaves. Females use a saw-like ovipositor to deposit eggs inside leaf tissue. Larvae look like caterpillars and are often found in large groups.

Risks & Benefits

Generally harmless to humans as they cannot sting. However, they are significant agricultural pests that can quickly defoliate brassica crops during heavy infestations.

Identified on: 6/6/2026