Tracking the outbreak: an optimized sequential adaptive strategy for Xylella fastidiosa delimiting surveys

Lázaro, Elena; M, Sesé; López‐Quílez, Antonio; Conesa, David; Dalmau, Vicente; Ferrer, Amparo González; Vicent, Antonio

doi:10.1007/s10530-021-02572-x

Cited by 8 publications

(5 citation statements)

References 38 publications

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“…Surveillance is a large proportion of the resources required in outbreak response programmes, so several methods have been developed for optimizing survey efficiency. A sequential adaptive delimiting survey for X. fastidiosa with increasing spatial resolution was evaluated, using occurrence data of X. fastidiosa in Alicante, Spain (Lázaro et al, 2021). Inspection and sampling intensities were adjusted using an optimization algorithm, considering the results obtained in a previous coarse spatial resolution, with three-phase or two-phase designs.…”

Section: Epidemiological Models To Assist Outbreak Response Programme...mentioning

confidence: 99%

Recent research accomplishments on early detection of Xylella fastidiosa outbreaks in the Mediterranean Basin

Velasco-Amo

Civera²,

Zarco‐Tejada³

et al. 2023

Phytopathol. Mediterr.

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Xylella fastidiosa is a major transboundary plant pest, causing severe socioeconomic impacts. Development of preventive strategies and methods for surveillance, early detection, monitoring, and accurate diagnosis of X. fastidiosa and its vectors, are keys to preventing the effects of this plant pathogen, and assist timely eradication or optimisation of containment measures. This review focuses on approaches for early detection of X. fastidiosa in the Mediterranean Basin, including development of climatic suitability risk maps to determine areas of potential establishment, and epidemiological models to assist in outbreak management through optimized surveillance and targeted responses. The usefulness of airborne hyperspectral and thermal images from remote sensing to discriminate X. fastidiosa infections from other biotic- and abiotic-induced spectral signatures is also discussed. The most commonly used methods for identifying X. fastidiosa in infected plants and vectors, and the molecular approaches available to genetically characterize X. fastidiosa strains, are described. Each of these approaches has trade-offs, but stepwise or simultaneous combinations of these methods may help to contain X. fastidiosa epidemics in the Mediterranean Basin.

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Section: Epidemiological Models To Assist Outbreak Response Programme...mentioning

confidence: 99%

Recent research accomplishments on early detection of Xylella fastidiosa outbreaks in the Mediterranean Basin

Velasco-Amo

Civera²,

Zarco‐Tejada³

et al. 2023

Phytopathol. Mediterr.

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“…Studies concerned with aspects of disease management accounted for many of the articles recovered under Objective 1, very often linked to disease surveillance in regulated zones (Lazaro et al 2021) and detection/ discrimination of new pathogens or novel strains using molecular diagnostics. Examples include Sri Lankan cassava mosaic virus emerging in Southeast Asia (Charoenvilaisiri et al 2021), Xylella subspp in the Balearic Islands (Olmo et al 2021), citrus tristeza virus strains (Park et al 2021, Llanes-Alvarez et al 2021, Erwinia spp in the USA (Singh et al 2021), antibiotic resistance in Pseudomonas syringae pv actinidiae (Psa) (Lee et al, 2021), fungicide resistance in Zymoseptoria tritici (Garnault et al, 2021) (see detailed summaries in Electronic Supporting Information, S5).…”

Section: Implications For Disease Managementmentioning

confidence: 99%

What Can Be Learnt by a Synoptic Review of Plant Disease Epidemics and Outbreaks Published in 2021

Jeger¹,

Fielder²,

Beale³

et al. 2023

Preprint

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A synoptic review of plant disease epidemics and outbreaks was made using two complementary approaches. The first approach involved reviewing scientific literature published in 2021, in which quantitative data related to new plant disease epidemics or outbreaks were obtained via surveys or similar methodologies. The second approach involved retrieving new records added in 2021 to the CABI Distribution Database, which contains over a million global geographic records of organisms from over 50,000 species. The literature review retrieved 186 articles, describing studies in 62 categories (pathogen species/species complexes) across >40 host species on 6 continents. Pathogen species with >5 articles were: Bursaphelenchus xylophilus, Candidatus Liberibacter asiaticus, cassava mosaic viruses, citrus tristeza virus, Erwinia amylovora, Fusarium spp. complexes, Fusarium oxysporum f. sp. cubense, Magnaporthe oryzae, maize lethal necrosis co-infecting viruses, Meloidogyne spp. complexes, Pseudomonas syringae pvs, Puccinia striiformis f. sp. tritici, Xylella fastidiosa, and Zymoseptoria tritici. Automated searches of the CABI Distribution Database identified 617 distribution records new in 2021 of 283 plant pathogens. A further manual review of these records confirmed 15 pathogens reported in new locations: apple hammerhead viroid, apple rubbery wood viruses, Aphelenchoides besseyi, Biscogniauxia mediterranea, Ca. Liberibacter asiaticus, citrus tristeza virus, Colletotrichum siamense, cucurbit chlorotic yellows virus, Erwinia rhapontici, Erysiphe corylacearum, Fusarium oxysporum f. sp. cubense Tropical Race 4, Globodera rostochiensis, Nothophoma quercina, potato spindle tuber viroid, and tomato brown rugose fruit virus. Of these, 4 pathogens had at least 25% of all records reported in 2021. We assessed two of these pathogens – tomato brown rugose fruit virus and cucurbit chlorotic yellows virus – to be actively emerging in/spreading to new locations. Although three important pathogens – Ca. Liberibacter asiaticus, citrus tristeza virus and Fusarium oxysporum f. sp. cubense – were represented in the results of both our literature review and our interrogation of the CABI Distribution Database, in general our dual approaches revealed distinct sets of plant disease outbreaks and new records, with little overlap.

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“…In 2019, the demarcated area in Alicante covered 140000 ha with almost 5000 orchards, and some 75000 trees destroyed. A strategy to optimise the official survey programmes was proposed by Lazaro et al (2021).…”

Section: Xylella Fastidiosa and Vectorsmentioning

confidence: 99%

A Synoptic Review of Plant Disease Epidemics and Outbreaks Published in 2021

Jeger¹,

Fielder²,

Beale³

et al. 2022

Preprint

View full text Add to dashboard Cite

A synoptic review of plant disease epidemics and outbreaks was made using two complementary approaches. The first approach involved reviewing scientific literature published in 2021, in which quantitative data related to new plant disease epidemics or outbreaks had been obtained via surveys or similar methodologies. The second approach involved retrieving new pest presence records added to the CABI Distribution Database in 2021. The literature review for the first approach had two stages. Stage 1 aimed to identify publications on plant diseases caused by pathogen taxonomic groups and led to retrieval of 99 core articles describing studies in 62 categories (pathogen species or species complexes) across more than 40 host species in 6 continents. In Stage 2, the core articles were augmented with further articles providing more context and information for the pathogen species identified in Stage 1. When both sets of articles were combined, the pathogen species with more than 5 articles were: Bursephalenchus xylophilus, Candidatus Liberibacter asiaticus, cassava mosaic viruses, citrus tristeza virus, Erwinia amylovora, Fusarium spp. complexes, Fusarium oxysporum f.sp cubense, Magnaporthe oryzae, maize lethal necrosis co-infecting viruses, Meloidogyne spp. complexes, Pseudomonas syringae pvs, Puccinia striiformis f.sp tritici, Xylella fastidiosa, and Zymoseptoria tritici. The automated search of the CABI Distribution Database led to 617 new distribution records from 283 plant pathogens in 2021 and was followed by manual review of all pathogens with more than 4 new records, to identify confirmed first reports in a new location. A total of 15 pathogens was identified: apple hammerhead viroid, apple rubbery wood viruses, Aphelenchoides besseyi, Biscogniauxia mediterranea, Ca. Liberibacter asiaticus, citrus tristeza virus, Colletotrichum siamense, cucurbit chlorotic yellows virus, Erwinia rhapontici, Erysiphe corylacearum, Fusarium oxysporum f.sp. cubense Tropical Race 4, Globodera rostochiensis, Nothophoma quercina, potato spindle tuber viroid, and tomato brown rugose fruit virus. Although 3 very important pathogens – Ca. Liberibacter asiaticus, citrus tristeza virus and Fusarium oxysporum f.sp cubense – were represented in the results of both approaches, in general the two approaches revealed distinct sets of plant disease outbreaks and new records, with little overlap in the results.

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Tracking the outbreak: an optimized sequential adaptive strategy for Xylella fastidiosa delimiting surveys

Cited by 8 publications

References 38 publications

Recent research accomplishments on early detection of Xylella fastidiosa outbreaks in the Mediterranean Basin

Recent research accomplishments on early detection of Xylella fastidiosa outbreaks in the Mediterranean Basin

What Can Be Learnt by a Synoptic Review of Plant Disease Epidemics and Outbreaks Published in 2021

A Synoptic Review of Plant Disease Epidemics and Outbreaks Published in 2021

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