What are the main stages of simple metamorphosis in insects?

The main stages of simple metamorphosis in insects consist of three distinct phases: egg, nymph, and adult. In this type of development, the insect hatches from an egg into a nymph, which often resembles a smaller version of the adult. The nymph undergoes several molts, gradually increasing in size and developing adult characteristics until it finally reaches the adult stage. This process is different from complex metamorphosis, which involves a larval stage and a pupal stage. The simplicity of the metamorphosis in this case allows for a more straightforward and direct transformation from juvenile to adult without the intermediate complexity of a larval or pupal stage. Understanding this process is crucial for anyone working with insects in pest management, as it impacts their life cycles and the timing of control measures.