Sea buckthorn moth

The sea buckthorn moth (Gelechia hippophaella) is a member of the order Lepidoptera and the family Gelechiidae. This insect is a specialist pest that targets sea buckthorn, potentially causing significant economic damage to both commercial orchards and small-scale plantings.

The primary host plant is the sea buckthorn (Hippophae rhamnoides). The larvae of this moth cause severe damage to developing buds, young shoots, and eventually fruits. By feeding on the reproductive parts of the plant, the pest directly impacts the yield potential and fruit quality.

The biology of the moth is synchronized with the phenology of the sea buckthorn. The larvae overwinter in cocoons under the bark or in leaf litter. As temperatures rise in spring, the larvae emerge to feed on the swelling buds. After pupation, the adult moths emerge to lay eggs, starting a cycle that can severely stress the host plant.

Damage is typically characterized by webbed clusters of leaves at the tips of shoots. The larvae feed inside these webs, skeletonizing the leaves and boring into the developing fruits. Infested berries often dry out or shrivel, making them unusable for harvest and processing, leading to significant financial losses.

Management strategies involve a combination of cultural and chemical controls. Maintaining orchard hygiene, including the removal of old bark and infested plant material, is crucial. Targeted insecticide treatments should be applied when larvae are most active, typically during the bud burst stage, to minimize impact while ensuring safety.

• Sanitary pruning of infested shoots.
• Monitoring larval activity with pheromone traps.
• Application of contact insecticides during the larval emergence period.
• Encouraging natural predatory insects in the orchard.