What type of metamorphosis does the corn rootworm undergo?

The corn rootworm undergoes complete metamorphosis, which involves four distinct life stages: egg, larva, pupa, and adult. This type of metamorphosis is characterized by a significant transformation from one stage to another, particularly as the larva transitions into a pupa before finally emerging as an adult. Each stage has different physical characteristics and ecological roles, with the larval stage being particularly damaging to crops like corn as they feed on the roots.

In the case of corn rootworms, understanding their life cycle is crucial for effective pest management, as each stage presents different opportunities for control. The larval feeding behavior can lead to substantial damage, making it important for farmers to recognize when these pests are most vulnerable and how to address them effectively.

Other forms of metamorphosis, such as simple or gradual, typically involve fewer stages and less dramatic changes between them, which does not apply to the corn rootworm. Thus, identifying the corn rootworm as undergoing complete metamorphosis is essential for effective pest management strategies.