Psyllids are small, sap-sucking insects belonging to the family Psyllidae. They are often referred to as "jumping plant lice" due to their ability to leap away when disturbed. These insects primarily feed on the sap of various plants, which can lead to damage and stress for the host plants. Some species are known to transmit plant diseases, making them significant pests in agriculture. Psyllids have a distinctive appearance, with a rounded body and large, clear wings. They are typically found on the leaves of their host plants, where they lay eggs. The nymphs, or immature stages, resemble tiny, flat scales and can also cause harm to plants. Effective management of Psyllids is essential for maintaining healthy crops and gardens.