Codling moth
invading the fruit, the larvae first form a small cavity just under the skin. The entry hole can be seen and is usually plugged by dry frass. The larva then [...] places. Depending on the climate, there are one, two or more generations per year. The fully grown caterpillars of the last generation overwinter and pupate [...] burrows towards the core and eats a large proportion of the flesh, leaving behind brown frass. The entry point is then greatly enlarged as the tissue beneath