Career
He was a specialist in Hymenoptera who published in 1791 Naturgeschichte, Klassifikation und Nomenklatur der Insekten vom Bienen, Wespen und Ameisengeschlecht. In 1791, he became the first person to describe Polistes dominula. He also studied fruit trees and wrote Vollständige Pomologie (2 volumes, 1809–1822).
