"Sucking pest" is a term used in agriculture to refer to insects that feed on plant sap by piercing the plant tissue with their mouthparts. These pests can cause significant damage to crops by weakening the plants, transmitting diseases, and reducing yield. Some common examples of sucking pests include aphids, whiteflies, mealybugs, and scale insects. Agricultural practices often involve various methods to control these pests, such as chemical insecticides, biological control agents, cultural practices, and resistant plant varieties.