Identifying economic hurdles to early adoption of preventative practices: The case of trunk diseases in California winegrape vineyards

Kaplan, Jonathan D.; Travadon, Renaud; Cooper, Monica L.; Hillis, Vicken; Lubell, Mark; Baumgartner, Kendra

doi:10.1016/j.wep.2016.11.001

Cited by 78 publications

(61 citation statements)

References 25 publications

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“…Grapevine producers are aware of the high likelihood of infection and substantial yield losses from GTD but, in general, they do not adopt management practices until disease symptoms appear in the vineyard, frequently when the vines are around 10 years old . Viticulturists are currently assuming that they must face GTDs throughout the entire life of the vine, integrating different control measures that can contribute to mitigate the economic impact of the diseases, but taking into account that complete eradication of these diseases is not possible .…”

Section: Introductionmentioning

confidence: 99%

“…1,3 Grapevine producers are aware of the high likelihood of infection and substantial yield losses from GTD but, in general, they do not adopt management practices until disease symptoms appear in the vineyard, frequently when the vines are around 10 years old. 6 Viticulturists are currently assuming that they must face GTDs throughout the entire life of the vine, integrating different control measures that can contribute to mitigate the economic impact of the diseases, but taking into account that complete eradication of these diseases is not possible. 1,3 In this sense, the most important objectives to be covered by a GTD-integrated management program are the improvement of the phytosanitary quality of the vines produced in the nursery 4 and the prevention of infections of pruning wounds in the vineyard from the moment of planting.…”

Section: Introductionmentioning

confidence: 99%

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Evaluation of long‐term protection from nursery to vineyard provided by Trichoderma atroviride SC1 against fungal grapevine trunk pathogens

Berbegal

Ramón-Albalat

León

et al. 2019

Pest Management Science

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BACKGROUND Fungal grapevine trunk diseases (GTDs) represent a threat to viticulture, being responsible for important economic losses worldwide. Nursery and vineyard experiments were set up to evaluate the ability of Trichoderma atroviride SC1 to reduce infections of GTD pathogens in grapevine planting material during the propagation process and to assess the long‐term protection provided by this biocontrol agent on grapevine plants in young vineyards during two growing seasons. RESULTS Reductions of some GTD pathogen incidence and severity were found on grapevine propagation material after nursery application of T. atroviride SC1 during the grafting process, and also after additional T. atroviride SC1 treatments performed during two growing seasons in young vineyards, when compared with untreated plants. CONCLUSION Trichoderma atroviride SC1 showed promise to reduce infections caused by some GTD pathogens in nurseries, and also when establishing new vineyards. This biological control agent could possibly be a valuable component in an integrated management approach where various strategies are combined to reduce GTD infections. © 2019 Society of Chemical Industry

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Evaluation of long‐term protection from nursery to vineyard provided by Trichoderma atroviride SC1 against fungal grapevine trunk pathogens

Berbegal

Ramón-Albalat

León

et al. 2019

Pest Management Science

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“…1C), damaging the vascular connection between the shoots and roots, or delaying fruit ripening (Lorrain et al, 2012). Trunk diseases cause severe reductions in the long-term profitability of vineyards (Kaplan et al, 2016), and often necessitate replanting (Sipiora and Cuellar, 2014).…”

Section: Introductionmentioning

confidence: 99%

TrunkDiseaseID.org: A molecular database for fast and accurate identification of fungi commonly isolated from grapevine wood

et al. 2017

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The grapevine trunk-disease complex limits vineyard longevity in all major grape-growing regions. Although trunk diseases have been distinguished based on etiologies (e.g., Botryosphaeria-, Eutypa-, and Phomopsis dieback, Esca) and causal agents, mixed infections of trunk pathogens and other woodcolonizing fungi are frequent in grapevines. These diverse fungal communities in grapevine span four classes in the Pezizomycotina (Ascomycota) and 10 genera in the Hymenochaetales (Basidiomycota). Traditional identification based on morphology is largely untenable because of overlap in colony characteristics or spore dimensions, or lack of sporulation in culture. When based on DNA sequencing, searches of uncurated, public molecular databases can lead to misidentifications. The new molecular database TrunkDiseaseID.org is populated with accurate rDNA ITS sequences from 250 þ isolates (pathogens and saprobes) and secondary DNA barcodes for delineating closely related species. Currently, no such comprehensive database exists for grapevine wood-colonizing fungi. In addition to ITS and secondary barcode sequences, this database provides a scientific reference, origin, and ecological status for each isolate, to aid diagnosticians in communicating results and recommendations to growers. Outreach through the National Plant Diagnostic Network and the US Department of Agriculture's Identification Technology Program will connect diagnosticians to this new database for grape. Published by Elsevier Ltd.

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“…Grapevine trunk diseases (GTDs) are a major challenge to viticulture worldwide, because they compromise the productivity and longevity of grapevines (Vitis vinifera L.) and increase production costs (Munkvold et al 1994;Bertsch et al 2013;Kaplan et al 2016;Gramaje et al 2018). GTDs are one of the main phytosanitary problems of the grape industry also in Chile (Auger et al 2004;.…”

Section: Introductionmentioning

confidence: 99%

Biocontrol potential of grapevine endophytes against grapevine trunk pathogens

Silva-Valderrama

Toapanta²,

Miccono

et al. 2020

Preprint

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Grapevine Trunk Diseases (GTDs) are a major challenge to the grape industry worldwide. GTDs are responsible for considerable loss of quality, production, and vineyard longevity. Seventy five percent of Chilean vineyards are estimated to be affected by GTDs. GTDs are complex diseases caused by several species of fungi, including Neofusicoccum parvum, Diplodia seriata, and Phaeomoniella chlamydospora. In this study, we report the isolation of 169 endophytic and 209 epiphytic fungi from grapevines grown under organic and conventional farming in Chile. Multiple isolates of Clonostachys rosea, Trichoderma sp., Purpureocillium lilacium, Epiccocum nigrum, Cladosporium sp., and Chaetomium sp. were evaluated for their potential of biocontrol activity against fungal trunk pathogens. Tests were carried out using two dual-culture-plate methods with multiple media types, including agar containing grapevine wood extract to simulate in planta nutrient conditions. Significant pathogen growth inhibition was observed by all isolates tested. C. rosea showed 98.2% inhibition of all pathogens in presence of grapevine wood extract. We observed 100% pathogen growth inhibition when autoclaved lignified grapevine shoots were pre-inoculated with either C. rosea strains or Trichoderma sp.. Overall these results show that C. rosea strains isolated from grapevines are promising biocontrol agents against GTDs.

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Identifying economic hurdles to early adoption of preventative practices: The case of trunk diseases in California winegrape vineyards

Cited by 78 publications

References 25 publications

Evaluation of long‐term protection from nursery to vineyard provided by Trichoderma atroviride SC1 against fungal grapevine trunk pathogens

Evaluation of long‐term protection from nursery to vineyard provided by Trichoderma atroviride SC1 against fungal grapevine trunk pathogens

TrunkDiseaseID.org: A molecular database for fast and accurate identification of fungi commonly isolated from grapevine wood

Biocontrol potential of grapevine endophytes against grapevine trunk pathogens

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