An unprecedented plant health emergency in olives has been registered over the last decade in Italy, arguably more severe than what occurred repeatedly in grapes in the United States in the last 140 years. These emergencies are epidemics caused by a stealthy pathogen,...
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A model for predicting the phenology of Philaenus spumarius
The design and implementation of Philaenus spumarius control strategies can take advantage of properly calibrated models describing and predicting the phenology of vector populations in agroecosystems. We developed a temperature-driven physiological-based...
Complete circularized genome resources for Xylella fastidiosa subsp. sandyi strains CO33 and CFBP8478
Xylella fastidiosa (Xf) is a vascular phytopathogenic bacterium native to the Americas, known for causing severe diseases and significant economic losses in important crops. In Europe, Xf is considered a quarantine pathogen. Since its first detection in 2013 in Italy,...
An Individual-Based Spatial Epidemiological Model for the Spread of Plant Diseases
In the study of plant disease epidemics, the state of each individual in the population and their spatial location should be considered when modeling disease spread. We present a model to describe the spread of plant diseases, where the infection of a susceptible...
Complete genome assemblies of several Xylella fastidiosa subspecies multiplex strains reveals high phage content and novel plasmids
The Gram-negative bacterium Xylella fastidiosa (Xf) was originally found in the Americas, but has now been identified in more than 20 countries across America, Asia, and Europe. This plant pathogen is currently listed as a priority pest in Europe due to its...
Bioecological traits of spittlebugs and their implications on the epidemiology and control of Xylella fastidiosa epidemic in Apulia
Spatial-temporal dynamics of spittlebug populations, together with transmission biology, are of major importance to outline the disease epidemiology of Xylella fastidiosa subsp. pauca in Apulian olive groves. The spread rate of X....
Forecasting Pathogen Dynamics with Bayesian Model-Averaging: Application to Xylella fastidiosa
Forecasting invasive-pathogen dynamics is paramount to anticipate eradication and containment strategies. Such predictions can be obtained using a model grounded on partial differential equations (PDE; often exploited to model invasions) and fitted to surveillance...
On 4 April Xylella-files seminar on priming response to Xf in grapevines
On 4 April 2023, in the context of the “Xylella Files” spring seminars, professor of plant pathology at UC Riverside Caroline Roper will discuss her research on Defense Priming and Grapevine Immune Responses to Xylella fastidiosa. "Priming" is a mechanism triggering...