Adults are ~2 mm, black with yellow stripes. Larvae feed on roots. Multiple generations/year. Overwinters as adults. Jumps when disturbed .

Adults skeletonize leaves; larvae damage roots. Affects crucifers (e.g., cabbage, radish), causing yield loss .

Cosmopolitan in temperate/tropical regions (e.g., Asia, Europe, North America) .

Visual inspection of leaf damage. Yellow sticky traps. Soil sampling for larvae .

Yellow sticky traps. Pheromone traps (e.g., isothiocyanate lures) .