Corn earworm
areas with very cold winters. The pupae measure around 18 mm and have a slightly shiny brown colour. The adults have a brown-coloured body, with a wingspan [...] traps, especially using ultraviolet light. This capture method, together with aggregation sex pheromone traps, are population monitoring tools for moths [...] the tip of the cob. During the third instar, the larvae turn cannibalistic, with only one caterpillar surviving, which will start to feed again on the tip