Lychnis moth

Systematic position: The Lychnis moth (Hadena bicruris) belongs to the order Lepidoptera, family Noctuidae. It is a specialized pest that has evolved to thrive alongside plants belonging to the Caryophyllaceae family.

Affected crops: While primarily associated with wild species such as Silene and Melandrium, this moth can cause significant damage to cultivated members of the Caryophyllaceae family, including various types of carnations (Dianthus) and baby's breath (Gypsophila), particularly in seed-production areas.

Biology and life cycle: The species typically undergoes one or two generations annually. Overwintering occurs in the pupal stage within the soil. Adult moths are active at night, with females depositing eggs directly into the flower buds, ensuring that larvae have an immediate food source upon hatching.

Damage and pest status: Larvae are the primary cause of damage. They feed on the stamens, styles, and ovaries of the flowers. As they develop, they burrow into the seed capsules and consume the maturing seeds, which drastically reduces seed yield and significantly lowers the quality of the planting material.

Control measures:

• Fall soil cultivation to disrupt the pupae's overwintering habitat.
• Removal of weed hosts, such as white campion and bladder campion, from the surrounding area.
• Use of biological insecticides like Bacillus thuringiensis at the early larval stage.
• Chemical control using registered insecticides during the flowering period if thresholds are exceeded.