Mitigating the Economic Impact of Grapevine Red Blotch: Optimizing Disease Management Strategies in U.S. Vineyards

Ricketts, Katie D.; Gómez, Miguel I.; Fuchs, Marc; Martinson, Tim; Smith, Rhonda J.; Cooper, Monica L.; Moyer, Michelle; Wise, Alicia

doi:10.5344/ajev.2016.16009

Cited by 62 publications

(36 citation statements)

References 6 publications

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“…However, no agronomic studies have been conducted testing interactions between cultural practices and their effects on physiology of GRBV-infected grapevines. Provided with limited information regarding field-level management practices, grape growers have resorted to removing young GRBV-infected vineyards, a time consuming and costly practice ( Ricketts et al, 2017 ). Therefore, more information is necessary regarding the interactive effects of GRBD and cultural practices so that producers can better manage infected vineyards.…”

Section: Introductionmentioning

confidence: 99%

Water Deficits Do Not Improve Fruit Quality in Grapevine Red Blotch Virus-Infected Grapevines (Vitis vinifera L.)

Levin

2020

Front. Plant Sci.

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Although deficit irrigation is used to improve fruit quality in healthy grapevines, it can potentially amplify negative effects of viral disease and reduce fruit quality in Grapevine Red Blotch Virus (GRBV) infected grapevines. Therefore, a 2-year field experiment was conducted to understand the interaction between GRBV infection and water deficits on disease development and vine physiology. Well-watered (WW) vines were irrigated at 100% of estimated crop evapotranspiration (ET c), while water deficit (WD) vines received water at 66 and 50% ET c in 2017 and 2018, respectively. Healthy (GRBV-) and infected (GRBV+) vines were confirmed by PCR assays. There were no significant effects of water deficits on foliar symptom onset in either year, but more severe water deficits in 2018 resulted in a more rapid symptom progression. GRBV+ vines had a higher Y stem compared to GRBV-vines, but the effects of virus only appeared post-veraison and corresponded to decreased leaf gas exchange. In general, vine vegetative and reproductive growth were not reduced in GRBV+ vines. Yields were highest in WW/ GRBV+ vines due to larger clusters containing larger berries. Consistent treatment effects on berry primary chemistry were limited to sugars, with no interactions between factors. Water deficits were able to somewhat increase berry anthocyanin concentration in GRBV + fruit, but the effects were dependent on year. By comparison, virus status and water deficits interacted on skin tannins concentration such that they were decreased in WD/ GRBV+ vines, but increased in WD/GRBV-vines. Water deficits had no effect on seed phenolics, with only virus status having a significant diminution. Although keeping GRBV+ vines well-watered may mitigate some of the negative effects of GRBD, these results suggest that water deficits will not improve overall fruit quality in GRBV+ vines. Ultimately, the control of fruit ripening imparted by GRBV infection seems to be stronger than abiotic control imparted by water deficits.

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Section: Introductionmentioning

confidence: 99%

Water Deficits Do Not Improve Fruit Quality in Grapevine Red Blotch Virus-Infected Grapevines (Vitis vinifera L.)

Levin

2020

Front. Plant Sci.

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“…After discovery of the virus, surveys demonstrated a high prevalence of GRBV in all major grape-growing regions across the United States (Krenz et al 2014). Consequently, GRBV is now recognized as a major economic threat to the U.S. wine industry (Ricketts et al 2017). Furthermore, GRBV is observed on native and wild Vitis spp.…”

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confidence: 99%

Grapevine red blotch virus: Absence in Swiss Vineyards and Analysis of Potential Detrimental Effect on Viticultural Performance

et al. 2018

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Grapevine red blotch virus (GRBV) is a recently described virus that infects grapevine. Little information is available on the possible occurrence and distribution outside North America. Therefore, we surveyed commercial vineyards from the three major grape-growing regions in Switzerland to determine the presence or absence of GRBV. In total, 3,062 vines were analyzed by polymerase chain reaction. None of the vines tested positive for GRBV, suggesting the absence of GRBV from Swiss vineyards. We also investigated whether GRBV was present in 653 grapevine accessions in the Agroscope grapevine virus collection at Nyon, including dominantly Swiss (457) but also international accessions. Only six referential accessions were infected by GRBV, all originating from the United States, whereas all others from 10 European and 8 non-European origins tested negative. High-throughput sequencing analysis of Zinfandel A2V13, in the collection since 1985, confirmed close similarity of GRBV isolate Z_A2V13 to American isolates according to genomes deposited in GenBank. Because the Zinfandel A2V13 reference was also maintained grafted on the leafroll virus indicator Vitis vinifera ‘Gamay’, we evaluated the effect of GRBV on viticultural performance over a 3-year period. Our results showed clear detrimental effects of GRBV on grapevine physiology (vine vigor, leaf chlorophyll content, and gas exchange) and fruit quality. These findings underscore the importance of implementation of GRBV testing worldwide in certification and quarantine programs to prevent the dissemination of this virus.

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“…La tache rouge serait associée à diverses espèces de virus à ADN monocaténaire de la famille des Germiniviridae, dont la présence est limitée au phloème (Martelli 2014a;Martelli 2014b;Naidu et al 2014;Sudarshana et al 2015). Ces virus semblent réduire le rendement de certains cépages; il a été démontré que les lectures Brix des jus extraits de raisins de vignes malades étaient réduites de 1 à 4 degrés comparativement à celles des jus de raisins issus de vignes asymptomatiques, dans différents cépages (Ricketts et al 2017;Sudarshana et al 2015). La présence de la tache rouge a été rapportée dans de nombreux États américains, notamment en Californie, au Maryland, dans l'État de New York, au New Jersey et en Oregon, ainsi que dans deux provinces canadiennes, soit en Colombie-Britannique et en Ontario (Sudarshana et al 2015).…”

Section: Les Maladies De La Vigne Causées Par Des Virus Et Leur Distrunclassified

Virus et vigne, un mariage difficile à défaire : la biovigilance est nécessaire plus que jamais

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Mitigating the Economic Impact of Grapevine Red Blotch: Optimizing Disease Management Strategies in U.S. Vineyards

Cited by 62 publications

References 6 publications

Water Deficits Do Not Improve Fruit Quality in Grapevine Red Blotch Virus-Infected Grapevines (Vitis vinifera L.)

Water Deficits Do Not Improve Fruit Quality in Grapevine Red Blotch Virus-Infected Grapevines (Vitis vinifera L.)

Grapevine red blotch virus: Absence in Swiss Vineyards and Analysis of Potential Detrimental Effect on Viticultural Performance

Virus et vigne, un mariage difficile à défaire : la biovigilance est nécessaire plus que jamais

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