Grapevine-yellows
Guides
Jikradia olitoria
Coppery Leafhopper
Jikradia olitoria, commonly known as the Coppery Leafhopper, is a leafhopper species in the family Cicadellidae found primarily in eastern North America. It is a putative vector of the NAGYIIIβ phytoplasma strain associated with North American Grapevine Yellows, a destructive disease of grapevines. The species has been documented in Virginia vineyards and surrounding vegetation, with adults active from May through October. Laboratory studies have confirmed its ability to release phytoplasmas during phloem-feeding, though whole-plant transmission remains to be demonstrated.