The Ash-tip Borer Moth (Gracillaria syringella) is a small moth whose larvae feed on the tips of ash and lilac leaves. The species is sometimes referred to as the lilac leaf miner because its larvae tunnel within leaves.
Taxonomy and Classification
- Order: Lepidoptera
- Family: Gracillariidae
- Genus: Gracillaria
- Species: Gracillaria syringella
Physical Description
Adult moths are small and slender with a wingspan of about 10–15 mm. Their wings are brown with pale markings.
The larvae are tiny caterpillars that initially feed inside leaf tissue before folding leaves into protective shelters.
Distribution and Habitat
This species occurs throughout North America and Europe wherever ash and lilac plants grow.
Behavior and Damage
Larvae create mines inside leaves and eventually roll leaf edges into tubes where they continue feeding. This can cause cosmetic damage to ornamental plants.
Management and Prevention
- Prune infested leaves
- Encourage natural predators
- Monitor ornamental plants during early summer