Osbornellus borealis DeLong & Bohr 1936a: 976Membracoidea : Cicadellidae
|Diseases Transmitted||Pathogen Type|
|Western X-disease phytoplasma 16SrIII-A||Phytoplasma|
|Crops Affected by Osbornellus borealis DeLong & Bohr 1936a: 976|
This species is a vector of the yellow leaf roll strain of western X-disease virus of peach in California. Jensen (396) was first to report transmission by this species in 1957. Infections were produced from diseased peach to seven of nine healthy celery plants and one of four healthy peach trees. The insect spent 45 days on the inoculum. Celery was much more susceptible to the virus than peach.
This species is not considered an important vector of this strain of the virus.
Medium size, slender species. Length of male 4.40—5.00 mm., female 5.00—5.60 mm.
General color yellowish brown. Crown and pronotum with yellow and brown markings; elytra subhyaline with veins suffused with yellow brown, few cells ivory.
Pygofer in lateral aspect about as long as wide, caudal margin obliquely convex; aedeagus in lateral aspect with two basal processes extending laterally along shaft and protruding beyond apex of shaft; aedeagal shaft narrow, tubelike, slightly attenuated apically; gonopore subterminal; style in dorsal aspect with apices long, narrow; female seventh sternum in ventral aspect with caudal margin truncate.
This is the only species in the genus
that is a vector of a plant virus.
|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.|