Prominent moth

The genus Ptilodon belongs to the family Notodontidae, commonly known as prominent moths. As phytophagous insects, certain species within this group are recognized as significant pests that affect various deciduous trees, potentially causing economic impact in forest and orchard environments.

The primary hosts for these insects include species such as oak, birch, beech, and hazel. While they are primarily forest pests, they may occasionally migrate to neighboring cultivated trees, posing a risk to ornamental and fruit-bearing plants during years of peak population outbreaks.

The biological cycle of Ptilodon involves complete metamorphosis. They typically overwinter as pupae within a dense cocoon located in the soil or leaf litter. The emergence of adults occurs in the spring, followed by the deposition of eggs on the foliage, where the larvae will later emerge and feed.

Damage caused by Ptilodon caterpillars involves extensive defoliation. Early-stage larvae often skeletonize leaves, while older instars consume entire leaves, leaving only the midribs. This massive loss of leaf surface area inhibits photosynthesis, stresses the host plant, and can lead to crown dieback over successive seasons.

Protection strategies for orchards and forests depend on timely intervention. Integrated Pest Management (IPM) is recommended, focusing on the use of pheromone traps to monitor adult flight and the application of selective insecticides or microbial biological control agents targeting the early larval stages before severe damage occurs.

• Mechanical removal of leaf litter to destroy overwintering pupae.
• Introduction and protection of natural parasitoids and predators.
• Targeted application of biological control products during the larval stage.