Field Identification
A micro-moth whose larva tunnels in young citrus flush, leaving silvery serpentine mines and curled, distorted leaves. Damage is mostly cosmetic on mature trees but can set back young trees; open mines may allow fungal entry.
Mines are narrow and winding on the leaf surface; larvae are tiny yellow-green caterpillars inside the leaf. Adults are minute moths active at dawn and dusk.
How to Deal With It
Organic Control Methods
Avoid heavy summer pruning that forces untimed flushes; coordinate fertilizer to reduce overlapping vulnerable growth in peak moth periods if regional models exist.
Native and released parasitoid wasps (e.g., Ageniaspis citricola) attack larvae; avoid sprays harmful to tiny wasps during flush.
On small trees, remove and destroy mined terminals if infestation is localized; maintain tree vigor with proper irrigation.
Not practical at scale; monitoring with pheromone traps where available helps time avoidance of flushes.
Neem or spinosad (where permitted organically) timed to egg-lay on new flush can reduce miners; oils must be used carefully on citrus to avoid phytotoxicity.
Let Nature Handle It
Natural Enemies
- Parasitoid Wasps
- Predatory Ants
Threat Map