Citrus Leaf Miner is a pest that was introdced to Southern California by plants and plant products being shipped from Floridia.
This insect is a type of fly that lays its eggs on the succulent new growth on orange, lemon, and other citrus trees. The larve start to feed underneath the surface of the leaf damaging the new growth and causing it to look like small serpintine tracks are throughout the leaf surface. Within the last year Mitchell Pest Control has noticed a high population of this insect in many parts of Los Angeles, Arcadia, La Canada, and San Marino.
Damage on New Growth