Xylella Fastidiosa Active Containment Through a multidisciplinary-Oriented Research Strategy

Xylella updates

The latest information on detections of Xylella fastidiosa in Europe and research outcomes produced by the XF-ACTORS consortium

Pickin’ up good vibrations

The meadow spittlebug Philaenus spumarius – the vector of Xylella fastidiosa in olive orchards in Europe – communicates by emitting vibrational signals, which may have specific roles within the mating behavior. Using artificial signals to disturb insects’ sexual...

Vectors’ control: more knowledge, less impact

Vectors’ control is an essential part of strategies against Xylella fastidiosa. Although “aggressive” measures to limit the expansion of X. fastidiosa may be necessary for new outbreaks, low-impact actions are especially desirable in areas where...

It takes just few bites

The meadow spittlebug Philaenus spumarius is the primary vector of Xylella fastidiosa in Europe. In this paper, researchers gathered data on the insect’s feeding behavior through DC EPG (electrical penetration graph)-assisted transmission tests and comparative...

A lavender treatment for the Xf vector

The sustainable control of vector is an essential part of the management strategies of plant pests. In this paper, scientists report responses of Philaenus spumarius, the Xylella fastidiosa vector in Europe, towards some Essential oils (EOs) and related plants. EOs...

Question the bug for unraveling the spillover

Most likely, Xylella fastidiosa established in Europe through infected ornamental plants, with a successive spillover to cultivated ones. After the first detection in Europe on olive trees, Xf has detected on both cultivated and ornamental species. Understanding the...

Climate, space and the Xf distribution in Apulia and Alicante

Researchers studied the effects of climatic and spatial factors on the geographic distribution of Xylella fastidiosa in Apulia and Alicante, two regions in Europe severely affected by this pathogen. The aim is to support plant health authorities in building risk maps...

Damage monitoring from above the sky

Detecting and monitoring the dynamics of the disease symptoms caused by Xylella fastidiosa at a large scale is essential to curtailing its expansion and mitigating its impacts With this in mind, researchers developed a model integrating airborne hyperspectral imagery...

Filling the gaps in the epidemiology of a “slow” pathogen

The Italian Xylella fastidiosa outbreak, detected in Apulia in 2013, has spread over 100 km, killing millions of olive trees and is still expanding. Given the slow emergence of symptoms, the novel nature of the outbreak, and the time required to monitor the disease...

Early detection with drones, one step forward

Early detection is critical for the containment and eradication of devastating plant diseases, such as Xylella fastidiosa. In 2018, scientists found that airborne hyperspectral and thermal imagery could reveal infection in olive trees months before the symptoms were...

The spittlebug and the fly

Biology and Prevalence in Northern Italy of Verrallia aucta (Diptera, Pipunculidae), a Parasitoid of Philaenus spumarius (Hemiptera, Aphrophoridae), the Main Vector of Xylella fastidiosa in Europe. The spread of Xylella fastidiosa depends almost exclusively on insect...

The spider sense for the olive groves spittlebug

A Guild-Based Protocol to Target Potential Natural Enemies of Philaenus spumarius (Hemiptera: Aphrophoridae), a Vector of Xylella fastidiosa (Xanthomonadaceae): A Case Study with Spiders in the Olive Grove. The control of the vector population is an essential part of...

Environmental drivers of microbiome composition

Soil microbial communities from olive cultivars are shaped by seasonality and geographical scales. Soil biodiversity is essential for ecosystems and plant health. Understanding soil microbiome is becoming more and more relevant for supporting plant productivity and...

Looking for microbial pockets of resistance

Differences in the Endophytic Microbiome of Olive Cultivars Infected by Xylella fastidiosa across Seasons. The study of microbial endophytes is a promising research area for selecting possible biocontrol agents against Xylella fastidiosa. Plant scientists have already...

Exploring the olive xylem microbiome

Culture-Dependent and Culture-Independent Characterization of the Olive Xylem Microbiota: Effect of Sap Extraction Methods. The influence of endophytic bacteria on plants and animals’ response to infections is renowned, although many details are still missing....

Xylella: 37 new plant species added to host list

Thirty-seven new plant species have been identified as hosts of the Xylella fastidiosa pathogen. Most were naturally (not artificially) infected and were found both in EU countries (France, Italy, Portugal and Spain) and non-EU countries (USA and Iran). The new hosts...

Xylella fastidiosa found on olive trees in France

Last Friday France’s agriculture ministry said that two decorative olive trees in the PACA region (southern France) were found to be infected with Xylella fastidiosa.  The two plants were one in Antibes and the other in Menton: the last one was infected by the same...

Revealed: The secret life of the spittlebug

Citizen scientists have provided a wealth of new data on a curious insect that makes blobs of spittle on plants. More than 11,000 sightings of the spittlebug, or froghopper, have been recorded across the UK, with the south of England proving a stronghold. The...

First report of Xylella fastidiosa in Israel

The NPPO of Israel recently informed the EPPO Secretariat of the first record of Xylella fastidiosa (EPPO A2 List) on its territory. During a survey carried out in 2017-2018, a few symptomatic almond (Prunus dulcis) trees were discovered and subsequently eradicated....

Xylella update: still no cure, control measures crucial

EFSA has updated its assessment of the risks posed by Xylella fastidiosa to plants and crops in the European Union. The new assessment provides new insights and conclusions on controlling existing outbreaks of this pest and preventing further spread in the EU....

New finding of Xylella infections in olives in Apulia (southern Italy)

Last December the Regional Plant Authority officially reported the finding of a new outbreak of Xylella fastidiosa in Apulia (southern Italy). The bacterium was detected by serological and molecular tests in an olive tree sampled in the framework of the current...

First Identification of Xylella fastidiosa in Portugal

On January 8th 2019, the Direção-Geral de Alimentação e Veterinária, the Portuguese Services of the Government, noticed the first identification of Xylella fastidiosa in Portugal (see the annex | .pdf) The identification occurred in an asymptomatic plant of Lavanda...

Xylella fastidiosa in Corsica

The results of an official inter-ministerial joint mission, to gather information on the situation of Xylella fastidiosa and the implications for the transition of Corsica from eradication measures to containment measures, have been published by the French Ministry of...

First detection of Xylella fastidiosa in olive trees in mainland Spain

An olive tree in the municipality of Villarejo, community of Madrid, has been reported positive to the bacterium Xylella fastidiosa. The finding has been officially confirmed by the Spanish plant health authorities, thus a demarcated area around the olive tree has...

Ongoing efforts to avoid the spread of Xylella in mainland Spain

The results of the surveys for Xylella fastidiosa conducted in the demarcated area in Alicante province have been updated on December 2017, with 20 new almond orchards declared positive. For the first time, spittlebugs Philaenus spumarius individuals have been found...

Pictures of the symptoms caused by Xylella fastidiosa in host plants

The following links provide collections of pictures showing symptoms associated with the presence of Xylella fastidiosa in susceptible host plants in the different Countries where the pathogen is known to occur Overview on the symptoms of major diseases caused by X....

First detection of Xylella fastidiosa in mainland Spain

On June 30, the Regional Government of Comunitat Valenciana (Conselleria d’Agricultura, Medi Ambient, Canvi Climàtic i Desenvolupament Rural) confirmed the presence of Xylella fastidiosa in an almond orchard in Guadalest, a municipality of Marina Baixa district...

Europe Joins Forces to Fight Xylella Fastidiosa.

By Ylenia Granitto One of the projects that will be developed within the framework of Europe’s Horizon 2020 program for research and innovation carried out over the period from 2014 to 2020 is called XF-ACTORS. It consists of a multidisciplinary research plan which...

Xylella, focolaio a Martina è allarme rosso in Puglia

di MARCO MANGANO Un focolaio a Martina Franca: la Xylella Fastidiosa assesta un altro colpo doloroso agli uliveti di Puglia. Trema la valle d’Itria: dopo Ostuni, crocevia fra le province di Brindisi e Bari, lo sbarco nell’elegante città tarantina suscita non solo...