Sharka Epidemiology and Worldwide Management Strategies: Learning Lessons to Optimize Disease Control in Perennial Plants

Many plant epidemics that cause major economic losses cannot be controlled with pesticides. Among them, sharka epidemics severely affect prunus trees worldwide. Its causal agent, Plum pox virus (PPV; genus Potyvirus ), has been classified as a quarantine pathogen in numerous countries. As a result,...

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Bibliographic Details
Published in:Annual review of phytopathology 2015-01, Vol.53 (1), p.357-378
Main Authors: Rimbaud, Loup, Dallot, Sylvie, Gottwald, Tim, Decroocq, Véronique, Jacquot, Emmanuel, Soubeyrand, Samuel, Thébaud, Gaël
Format: Article
Language:English
Subjects:
Agricultural sciences
aphid
Crops, Agricultural - virology
detection
Life Sciences
modeling
Plant Diseases - prevention & control
Plant Diseases - virology
Plum pox virus
Plum Pox Virus - physiology
Potyvirus
Prunus
Prunus - virology
resistance
strategy
tolerance
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Summary:Many plant epidemics that cause major economic losses cannot be controlled with pesticides. Among them, sharka epidemics severely affect prunus trees worldwide. Its causal agent, Plum pox virus (PPV; genus Potyvirus ), has been classified as a quarantine pathogen in numerous countries. As a result, various management strategies have been implemented in different regions of the world, depending on the epidemiological context and on the objective (i.e., eradication, suppression, containment, or resilience). These strategies have exploited virus-free planting material, varietal improvement, surveillance and removal of trees in orchards, and statistical models. Variations on these management options lead to contrasted outcomes, from successful eradication to widespread presence of PPV in orchards. Here, we present management strategies in the light of sharka epidemiology to gain insights from this worldwide experience. Although focused on sharka, this review highlights more general levers and promising approaches to optimize disease control in perennial plants.
ISSN:0066-4286
1545-2107
DOI:10.1146/annurev-phyto-080614-120140