Aphis is a common title for the plant fluid insects belonging to the Hemiptera order (true ladybirds), subordo Fulgoromorpha, especially the small ones. Tonggeret was once classified as a wereng (under subordo Auchenorrhyncha) but now has been separated by taxonomy. Due to the exclusive life of the plant, a number of its members become an important pest in the cultivation of plants. In addition to being a direct feeder, the aphis is also a vector for the transmission of a number of important plant diseases, especially from the viral group.
they are so large that it is difficult for farmers to drive them away.
