Adults feed on chestnut foliage until nut kernels enter the dough stage in mid to late August.

[2] The adult female weevil drills a hole in a chestnut fruit and deposits one egg inside.

Pupae may be in the soil for one season or for several years due to prolonged larval diapause in some individuals.

The year after a summer drought, many reproducing females may emerge from larvae with prolonged diapause.

Increased orchard infestation occurs mostly where chestnuts lie on the ground for a sufficient length of time, or where the trees produce many small fruits which remain behind at the harvest.

[1] In China, in 2001, annually, about 20–30% of harvested chestnuts were wasted and spoiled by insect infestation and mildew.

[6] In Hungary, Curculio elephas swarms in chestnut orchards around August 20, particularly strongly around noon and in sunny weather.

[9] In Hungary, in 1971, a warm, aerosol-based protection was developed for older trees, by Sifter and Bürgés.

Most insects in harvested fruits and nuts can be controlled by thermal treatments over a temperature range of 46-56 °C.