Flame Shoulder

Taxonomic position: The Flame Shoulder (Agrotis plecta), synonymously known as Ochropleura plecta, belongs to the order Lepidoptera and the family Noctuidae. It is a common moth species widely distributed across Europe and parts of Asia, known for its distinctive dark wing markings.

Host plants: This moth is a polyphagous pest, meaning it feeds on a wide range of host plants. It commonly affects various vegetable crops, including lettuce, cabbage, beets, and potatoes. It can also be found on herbaceous plants, weeds, and occasionally in ornamental gardens, causing damage to both stems and foliage.

Biology and lifecycle: The species typically completes one or two generations per year depending on the climate. Overwintering occurs in the pupal stage, buried within the soil. Adult moths are nocturnal and active from late spring to summer. Females deposit eggs in clusters on the underside of host leaves, and larvae emerge to feed until they reach the pupation stage in the soil.

Nature of damage: Larvae are the primary agents of damage. Early-stage larvae perform skeletonizing of the leaves, while older caterpillars consume entire leaf blades, leaving only the main veins. They often feed at night, hiding near the root collar or under debris during the day. In high-density infestations, they can cause significant defoliation and damage to the root system of root vegetables.

Control measures: Management strategies emphasize preventive and cultural controls.

• Regular weeding to remove host plants.
• Tillage and soil cultivation to disrupt pupation sites.
• Use of pheromone traps to monitor population spikes.
• Application of selective insecticides when infestation thresholds are exceeded.