Pagaronia confusa OmanMembracoidea : Cicadellidae
|Diseases Transmitted||Pathogen Type|
|Crops Affected by Pagaronia confusa Oman|
This species is a vector of Pierce’s disease virus of grape in California. Frazier and Freitag (275) were first to report this species as a vector of this virus in 1946. Transmission was accomplished from diseased grape and alfalfa to healthy grape and alfalfa. It was not an efficient Vector, having transmitted the virus to only 14 percent of the plants tested. In 1949, Severin (706) confirmed transmission and obtained low infection from diseased grape to healthy grape with single specimens. Low longevity of adults contributed to low percentage of infections. No infections were obtained from diseased alfalfa to healthy alfalfa. A low percentage of natural infectivity was reported by Freitag and Frazier in 1954 (286) using mixed populations of Pagaronia species.
This species is not considered an important vector in the natural spread of this virus.
Large, slender species. Length of male 7.90—8.10 mm., female 9.00—9.40 mm.
General color light yellow. Crown light yellow with Seven black spots; pronotum light yellow; elytra light yellow with light-orange longitudinal stripes.
Pygofer in lateral aspect about as long as wide, caudal margin broadly angulate; aedeagus in lateral aspect long, recurved, tube-like with pair of prominent terminal processes, processes long, straight, projecting cephalad in lateral aspect, laterad in ventral aspect; gonopore subterminal on ventral surface of shaft; style in dorsal aspect with apex broad, curved laterally, lateral tooth near apex and small tooth on ventral surface near apex; female seventh sternum in ventral aspect with caudal margin slightly convex, deeply notched medially.
This species, related to
can be separated by the apical paired processes of the aedeagus, which are curved cephalad in lateral aspect and laterad in ventral aspect. The genitalia and adults were illustrated by DeLong and Severin (1949
|Nielson, M. W. 1968b. The leafhopper vectors of phytopathogenic viruses (Homoptera, Cicadellidae). Taxonomy, biology and virus transmission. United States Department of Agriculture Technical Bulletin . 1382 386 pp.|