Aleyrodidae, commonly known as whiteflies, are small, sap-sucking insects belonging to the order Hemiptera. They are typically found on the undersides of leaves and are characterized by their white, powdery appearance due to a waxy coating. Whiteflies can be harmful to plants as they feed on plant sap, which can weaken the host and lead to reduced growth and yield. These insects reproduce quickly, and their populations can grow rapidly under favorable conditions. Some species of Aleyrodidae are known to transmit plant viruses, making them significant pests in agriculture. Effective management strategies often include natural predators, insecticidal soaps, and other integrated pest management techniques.