Three leafhopper species can be found feeding on grapes in the Northeast: Erythroneura comes (Say), commonly known as the grape leafhopper (GLH), E. tricincta Fitch, the threebanded leafhopper, and Empoasca fabae (Harris), the potato leafhopper. Of the two Erythroneura species, E. comes is the dominant species in most areas of the Northeast. In contrast to the GLH and E. tricincta, the potato leafhopper does not overwinter in this area. It is an annual migrant from the south and usually appears around mid-June in this region. In some years E. fabae can be more destructive than the GLH.