Treehopper voucher specimens collected in from Benton, Josephine, and Yamhill Counties, Oregon

Dennis D Kopp,Richard J Hilton,Vaughn M Walton,Daniel T Dalton

doi:10.5399/osu/cat_osac.4.1.4650

Abstract

Treehopper insect populations (Hemiptera: Membracidae) were surveyed in 2018 in Benton, Josephine, and Yamhill Counties, Oregon to determine their potential roles in the epidemiology of Grapevine red blotch virus. Stictocephala basalis and Tortistilus albidosparsus were identified through a taxonomic assessment of samples collected by hand near vineyards and in a natural area. Historical presence of Spissistilus festinus in the Willamette Valley is discussed. Voucher specimens were deposited in the Oregon State Arthropod Collection and at the United States National Museum of Natural History.

Highlights

Investigations into potential insect vectors of Grapevine red blotch virus (GRBV) began at Oregon State University in 2016 as a result of scientific breakthroughs in the identification and spatial dynamics of the virus (Al Rwahnih et al 2013, Dalton et al 2019)
The insect species Spissistilus festinus (Say) (Hemiptera: Membracidae: Smiliinae: Ceresini) was determined to be a competent vector of GRBV under greenhouse conditions (Bahder et al 2016)
Historical records showed the presence of Sp. festinus in viticultural regions of northwest Oregon, but the most recent finding documented in the Oregon State Arthropod Collection (OSAC) occurred in 1980, and specimens of Sp. festinus from southwest Oregon were decades old (Table 1)

Summary

Introduction

Investigations into potential insect vectors of Grapevine red blotch virus (GRBV) began at Oregon State University in 2016 as a result of scientific breakthroughs in the identification and spatial dynamics of the virus (Al Rwahnih et al 2013, Dalton et al 2019). The insect species Spissistilus festinus (Say) (Hemiptera: Membracidae: Smiliinae: Ceresini) was determined to be a competent vector of GRBV under greenhouse conditions (Bahder et al 2016). Historical records showed the presence of Sp. festinus in viticultural regions of northwest Oregon, but the most recent finding documented in the Oregon State Arthropod Collection (OSAC) occurred in 1980, and specimens of Sp. festinus from southwest Oregon were decades old (Table 1).

Results

Conclusion