A survey of sharpshooters (Hemiptera: Cicadellidae) in Virginia vineyards, a region of expanding concern for Pierce's disease.

摘要

A survey was conducted during the 2006 and 2007 growing seasons to record the presence of sharpshooters (Hemiptera: Cicadellidae) vectors of Pierce's disease in Vitis vinifera L. growing regions of Virginia. Oncometopia orbona (F.) and Graphocephala versuta (Say) were consistently trapped in all regions and throughout each growing season, the latter trapped in the highest number. Peak flight of both species occurred early in the season, the time of greatest concern for introduction of infection. Peak flight of O. orbona occurred earlier than that of G. versuta. Homalodisca insolita (Walker) was trapped in the Coastal Plain of Virginia; this is the most northern record of this species to date.