Corn earworm
development. Damage symptoms The female lays small quantities of eggs, between one and three, in the hairs of green ears of corn. The larvae feed on the hairs [...] the cob. During the third instar, the larvae turn cannibalistic, with only one caterpillar surviving, which will start to feed again on the tip of the cob [...] the ground to bury itself around 10-12 cm deep. This prepupal stage takes one to two days. It then pupates for ten to fourteen days, or three to five months