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Title

Epidemiologically-based strategies for the detection of emerging plant pathogens - PubMed

Authors

Alexander J Mastin ; Frank van den Bosch ; Yoann Bourhis 5; Stephen Parnell

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Epidemiologically-based strategies for the detection of emerging plant pathogens - PubMed

Source

PubMed (nih.gov)

URL

https://pubmed.ncbi.nlm.nih.gov/35768558/

Date

2022-06-29

Description

Abstract

Emerging pests and pathogens of plants are a major threat to natural and managed ecosystems worldwide. Whilst it is well accepted that surveillance activities are key to both the early detection of new incursions and the ability to identify pest-free areas, the performance of these activities must b …

Keywords

tags = pmid:35768558, PMC9243127, doi:10.1038/s41598-022-13553-y, Alexander J Mastin, Frank van den Bosch, Stephen Parnell, Animals, Ecosystem, Insect Vectors / microbiology, Italy, Olea* / microbiology, Plant Diseases / microbiology, Xylella*, PubMed Abstract, NIH, NLM, NCBI, National Institutes of Health, National Center for Biotechnology Information, National Library of Medicine, MEDLINE

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Epidemiologically-based strategies for the detection of emerging plant pathogens

Epidemiologically-based strategies for the detection of emerging plant pathogens

Abstract

Emerging pests and pathogens of plants are a major threat to natural and managed ecosystems worldwide. Whilst it is well accepted that surveillance activities are key to both the early detection of new incursions and the ability to identify pest-free areas, the performance of these activities must be evaluated to ensure they are fit for purpose. This requires consideration of the number of potential hosts inspected or tested as well as the epidemiology of the pathogen and the detection method used. In the case of plant pathogens, one particular concern is whether the visual inspection of plant hosts for signs of disease is able to detect the presence of these pathogens at low prevalences, given that it takes time for these symptoms to develop. One such pathogen is the ST53 strain of the vector-borne bacterial pathogen Xylella fastidiosa in olive hosts, which was first identified in southern Italy in 2013. Additionally, X. fastidiosa ST53 in olive has a rapid rate of spread, which could also have important implications for surveillance. In the current study, we evaluate how well visual surveillance would be expected to perform for this pathogen and investigate whether molecular testing of either tree hosts or insect vectors offer feasible alternatives. Our results identify the main constraints to each of these strategies and can be used to inform and improve both current and future surveillance activities.

© 2022. The Author(s).

Conflict of interest statement

The authors declare no competing interests.

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