Viruses in the genus Tospovirus have a tripartite RNA genome consisting of a large (L), medium (M), and small (S) RNA. The L RNA encodes the RNA-dependent RNA polymerase, while the M RNA encodes two structural glycoproteins and a movement protein. The S RNA encodes the nucleocapsid protein and a silencing suppressor protein. Tospoviruses are transmitted by thrips vectors and cause significant crop losses worldwide by infecting a wide range of plant hosts. Management is challenging due to the broad host ranges of the viruses and their vectors.