Adult moths lay eggs that are pale green, flat, and overlapping on the surface of young leaves, green twigs, or green fruit.
Individual eggs are flat, oval, and have finely reticulated surfaces.
Individual female moths may lay about 200 eggs in several masses. Eggs hatch after 9 days and larvae feed for about 40 days before pupating. The body can either be straw colored or green, dark gray or brown. Orange tortrix larvae are very active and wriggle backwards or sideways when disturbed. They may drop to the ground or remain suspended from the leaf on a silken thread that they can climb again.