First record of the Western Grape Leafhopper, Erythroneura elegantula Osborn (Homoptera: Cicadellidae), in Canada

摘要: Surveys conducted in the South Okanagan Valley, British Columbia, revealed that a new leafhopper pest of grapes, western grape (WGL), Erythroneura elegantula Osborn, was widespread and often abundant Vineyards on east side Valley from just north Penticton south to United States border. Infestations occurred drier upland sites where most commercial production occurs. The largest populations up 40 nymphs per leaf were recorded had applied reduced rates insecticide carbaryl for control Virginia creeper leafhopper, E. ziczac Walsh.