This document discusses four common insect pests that damage crops: flea beetles, wireworms, cabbage aphids, and root maggots. For each pest, it provides details on their symptoms, which include small holes in leaves, death of seedlings, stunted growth, and root damage. It also identifies the insects responsible, such as small dark beetles, yellow-brown wireworm larvae, soft-bodied grey-green aphids, and white larvae that pupate in soil. The document aims to educate farmers on identifying these pests based on the damage they cause plants.