Phylogenetic relatedness of maize chlorotic dwarf virus leafhopper vectors.

Twenty-five leafhopper (Cicadellidae) species from 13 genera representing three tribes (Deltocephalini, E Euscelini, and Macrostelini) in the subfamily Deltocephalinae were tested as vectors of the semipersistently transmitted maize chlorotic dwarf virus (MCDV). Vectors and their estimated percent transmission by single insects when maize served as the virus source and inoculation test plant were: Graminella nigrifrons. 35.9%: Amblysellus grex. 24.8%: Stirellus bicolor. 13.7%: Planicephalus flavocostatus. 12.9%: Exitianus exitiosus. 12.6%: G. sonora. 10.5%: Macrosteles severini. 1.9%: and Endria inimica. 1.5%. Leafhopper species that did not transmit MCDV from maize to maize were Baldulus tripsaci, Cicadulina mbila, nine Dalbulus species, Euscelidius variegatus, G. fitchii, G. oquaka, M. fascifrons, Ollarianus strictus, and Psammotettix lividellus