Adult (resting)
Length 8-11 mm, light brown with darker brown markings.
Egg
Flat, oval, light green. Black centre when mature. Laid in scale-like batches on leaves and, for the second generation, sometimes on fruits.
Larvae
Up to 18-20 mm long. Yellow-green, olive green or dark green, usually with a brown head, though head colour is not diagnostic. Spins fine webbing and often occurs in leaf rolls or beneath a leaf tied to fruit.
Other pests with which summer fruit tortrix moth may be confused
Larvae of several leaf-rolling tortrix moths are very similar and are difficult to distinguish from each other.
- Larvae of the fruit tree tortrix moth, Archips podana, occur commonly in orchards in the UK and are particularly difficult to distinguish from those of the summer fruit tortrix moth.