Flame Shoulder

Taxonomic classification. The Flame Shoulder (latin name Ochropleura plecta) belongs to the order Lepidoptera, family Noctuidae. It is a common moth species widely distributed across the Palearctic realm. In agricultural contexts, it is recognized for its potential to cause localized damage to various cultivated plants.

Host plants. This species is highly polyphagous. Its larvae feed on a wide range of herbaceous plants, including various vegetables (such as carrots, beets, and lettuce), cereals, and ornamental plants. It frequently utilizes common weeds as alternative hosts, which facilitates its spread across farming landscapes.

Biology and life cycle. The species typically overwinters as a pupa buried in the soil. Adults emerge in spring and are strictly nocturnal, being attracted to light sources. Depending on the latitude, the insect completes one to two generations per year. Eggs are laid in clusters, usually on the underside of leaves near the soil surface.

Nature of damage and economic importance. Larvae are the primary damaging stage. Early instars skeletonize leaves, while older caterpillars consume entire leaf blades, often leaving only the main veins. Their feeding can cause severe stunted growth or complete loss of young seedlings, leading to significant economic losses in vegetable production.

Control measures. A successful management strategy relies on cultural and chemical practices:

• Deep plowing in autumn to disturb and expose overwintering pupae to predators.
• Effective weed management to eliminate potential egg-laying and feeding sites.
• Monitoring adult population levels using light or pheromone traps.
• Targeted application of insecticides during the early larval stages when they are most susceptible to control products.