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ARS Home » Pacific West Area » Corvallis, Oregon » Horticultural Crops Production and Genetic Improvement Research Unit » Research » Publications at this Location » Publication #411650
Research Project: Improved Fruit, Grape and Wine Products through Precision Agriculture and Quality Component Evaluation

Location: Horticultural Crops Production and Genetic Improvement Research Unit

Title: Occurrence of grapevine yellow speckle viroid 2 and Australian grapevine viroid in Idaho grapevines

Author
item DAHAN, JENNIFER - University Of Idaho
item ORELLANA, GARDENIA - University Of Idaho
item Lee, Jungmin
item KARASEV, ALEXANDER - University Of Idaho

Submitted to: Plant Disease
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: 2/11/2024
Publication Date: 2/12/2024
Citation: Dahan, J., Orellana, G.E., Lee, J., Karasev, A. 2024. Occurrence of grapevine yellow speckle viroid 2 and Australian grapevine viroid in Idaho grapevines. Plant Disease. 108(4):1121. https://doi.org/10.1094/PDIS-01-24-0034-PDN.
DOI: https://doi.org/10.1094/PDIS-01-24-0034-PDN

Interpretive Summary: This paper reports on the first identification of two viroids, grapevine yellow speckle viroid 2 and Australian grapevine viroid, in Idaho.

Technical Abstract: Wine grape production in Idaho occurs on approximately 1,300 acres (planted acreage), predominately Canyon county in the Southwest and Nez Perce county in the Northwest. A multiple year survey for emerging vine viruses were conducted on wine grapes grown in both of these counties. In September 2020, leaf and petiole samples from six wine grapes and one table grape were collected from six vineyards in Canyon and Nez Perce counties. All 16 samples were found to be infected with hop stunt viroid (HSVd) and with grapevine yellow speckle viroid 1 (GYSVd-1), while one was infected with GYSVd-2 and Australian grapevine viroid (AGVd); in particular, the table grape plant was infected with all four viroid species, HSVd, GYSVd-1, grapevine yellow speckle viroid 2 (GYSVd-2), and AGVd. This paper reports on the first identification of GYSVd-2 and AGVd in Idaho vineyards.