Pest profile

Lesser Appleworm

Grapholita prunivora (iNaturalist: Aspila prunivora) · Lepidoptera: Tortricidae[2]

The lesser appleworm is a small moth whose pinkish larvae mine just under the skin of apples, pears, peaches, apricots, plums and cherries.[1]

Lesser appleworm moth, a small brown moth with orange and gold bands, seen from the side
Lesser appleworm moth, a small brown moth with orange and gold bands, seen from the side. Photo: Chrissy McClarren and Andy Reago, public domain (CC0), via iNaturalist

How to identify it

  • Moths are only about 1/4 inch long, brownish and yellowish, with a gold band across the back at rest.[1]
  • Larvae are pinkish with an anal comb and grow to 3/8 inch.[1]
  • Eggs are white to yellowish and laid singly on leaves and fruit.[1]

Where it lives

Penn State Extension covers it as a fruit pest in Pennsylvania.[1]

US map: public records from 11 states since 1990 (GBIF).

Biology and life cycle

There are two and possibly a partial third generation a year in Pennsylvania.[1]

Full-grown larvae overwinter in cocoons on the tree, under loose bark scales or in litter on the ground.[1]

Its life cycle closely overlaps the codling moth's.[1]

Damage and signs

  • Larvae carve extensive shallow mines under the fruit skin and may tunnel deeper as they grow, though not into the core.[1]
  • Fall feeding is often limited to the calyx end of the fruit.[1]

Health risk

It feeds on plants; Penn State Extension mentions no risk to people.[1]

Control

Prevention

Oriental fruit moth pheromone lures attract it, and Oriental fruit moth mating disruption also disrupts its mating.[1]

Pesticides

Codling moth management also controls this pest, except mating disruption aimed only at codling moth.[1]

Common questions

Does spraying for codling moth control lesser appleworm?
Usually; Penn State says codling moth programs control it, except mating disruption that targets only codling moth.[1]
How deep do lesser appleworm larvae tunnel?
They mine shallowly under the skin and may go deeper as they grow, but not into the core.[1]

Sources

  1. Penn State Extension, “Tree Fruit Insect Pest: Lesser Appleworm.” extension.psu.edu/tree-fruit-insect-pest-lesser-appleworm (accessed 2026-10-06)
  2. iNaturalist, “Aspila prunivora taxon page (order and family).” www.inaturalist.org/taxa/1507295 (accessed 2026-10-06)

Updated 2026-10-14. Built from sourced records. Spot an error? Tell us.