ENTOMOLOGY TODAY 15/05/17 A New Guide for Understanding Insect Vectors of Plant Pathogen Xylella fastidiosa. Pierce’s disease is one of many plant afflictions caused by the bacterium Xylella fastidiosa and spread by a variety of insects known as sharpshooters and spittlebugs.
(Photo credit: Lisa Overall, Ph.D.) PLANT PATHOLOGY 21/03/17 Several subspecies and sequence types are associated with the emergence of Xylella fastidiosa in natural settings in France. Xylella fastidiosa is a plant pathogenic bacterium emerging in Europe.
In France its emergence has been demonstrated through interceptions of contaminated coffee plants and, in 2015, by a survey of natural settings. The first French focus of contamination was detected in 2015 in Corsica; since then, almost 300 foci have been found and nearly 30 plant species have been declared contaminated, with Polygala myrtifolia remaining the principal host, suffering from severe leaf scorch. PONTEPROJECT 22/03/17 Characteristics and identification of xylem-sap feeders. NATURE SCIENTIFIC REPORTS 06/03/17 Network analysis reveals why Xylella fastidiosa will persist in Europe. Building the networks A high-resolution (1:10,000) digital map of olive orchards in the Puglia region was obtained from the regional geographic information system portal21.
It is based on a soil usage map created from orthophotos with pixels of 50 cm and taken in 2011. The map includes 61,035 polygons, each of them corresponding to a distinct olive orchard. We identified the minimum distance between each polygon and all the neighboring polygons within a radius of 5 km. A. csv file including all these pairwise distances can be downloaded from the Joint Research Centre Data Catalogue ( The distance between two polygons was measured as the linear distance between the two closest points of the polygons’ perimeters. As discussed in the main text, we focused our analyses on the network obtained using μ = 1 km, which is the best-estimated one emerging from our literature review. Network immunization Evaluating nodes’ importance as potential epidemic spreaders Software used.
PONTE 04/01/17 The DinJ/RelE toxin-antitoxin system suppresses bacterial proliferation and virulence of Xylella fastidiosa in grapevine. Dr.
Lindsey BurbankUSDA-ARS, Crop Diseases Pests and Genetics Research Unit, 9611 S Riverbend Ave, Parlier, California, United States, 93648; firstname.lastname@example.org. PONTE 26/10/16 Transmission of Xylella fastidiosa by naturally infected Philaenus spumarius (Hemiptera, Aphrophoridae) to different host plants. D.
Cornara (a), V. Cavalieri (b), C. 22th Congress of the Italian Society of Plant Pathology, 19-22 September 2016, Roma (Italy) The EU research programs in response to the Xylella fastidiosa emergency. Authors: D.
Boscia, M. Saponari. 22th Congress of the Italian Society of Plant Pathology, 19-22 September 2016, Roma (Italy) Exploiting pathogen confusion strategy to achieve Xylella fastidiosa biocontrol. Authors: G.
D’Attoma, M. Saponari, M. Morelli, A. Giampetruzzi, V.N. 22th Congress of the Italian Society of Plant Pathology, 19-22 September 2016, Roma (Italy) Establishment of an experimental field to explore the differential olive cultivar response to Xylella fastidiosa infection. Authors: M.
Saponari, F. Palmisano, C. Dongiovanni, V. Cavalieri, G. Altamura, G. 22th Congress of the Italian Society of Plant Pathology, 19-22 September 2016, Roma (Italy) Evaluation of a sampling method for Xylella fastidiosa detection in olive trees. Authors: L.
Susca, O. Potere, V. PONTE 08/10/16 Establishment of an experimental field to explore the differential olive cultivar response to Xylella fastidiosa infection. CALIFORNIA DEPARTMENT OF FOOD & AGRICULTURE - DEC 2015 - Pierce's disease control program. UNIVERSITY OF CALIFORNIA, BERKELEY - 2016 - Xylella fastidiosa Vector Transmission Biology. Plant Pathol J. 2016 Apr; 32(2): Diversity Evaluation of Xylella fastidiosa from Infected Olive Trees in Apulia (Southern Italy) Entomological Society of America - 2011 - Grapevine Genotype Susceptibility to Xylella fastidiosa does not Predict Vector Transmission Success. Journal of Plant Pathology (2010), 92 (1, Supplement), S1.35-S1.48 XYLELLA FASTIDIOSA: ITS BIOLOGY, DIAGNOSIS, CONTROL AND RISKS. Ecological Entomology (2011), 36, 654–662 Vector preference for hosts differing in infection status: sharpshooter movement and X.
Florida Entomologist 93(3) September 2010 IMPACTS OF AN ORANGE OIL SOLVENT AND STICKEM® ON THE DETECTION OF XYLELLA FASTIDIOSA D. Mol Plant Pathol. 2012 Aug;13(6):614-29. Top 10 plant pathogenic bacteria in molecular plant pathology. Appl Environ Microbiol. 2012 Mar;78(5):1385-96. Differentiation of Xylella fastidiosa strains via multilocus sequence analysis o. Le site Pierce's Disease .org. CENTER FOR WINE ECONOMICS - MAI 2013 - The Costs and Benefits of Pierce’s Disease Research in the California Winegrape Industry. Proceedings of the 2013 International Symposium on Insect vectors and insect-borne diseases - 2013 - The occurrrence of Pierce's disease of grapevines and its control strategies in Taiwan. Genomics of Plant-Associated Bacteria - 2014 - Genomic Insights into Xylella fastidiosa Interactions with Plant and Insect Hosts.
J. Crop Prot. 2015, 4 (1):131-137 First Report of Xylella fastidiosa associated with Oleander Leaf Scorch in Lebanon. JOURNAL OF CROP PROTECTION - MARCH 2015 - First Report of Xylella fastidiosa associated with Oleander Leaf Scorch in Lebanon. SCIENTIFIC AMERICAN 24/06/15 Should Italy's Prized Olive Groves Be Burned to the Ground? [Video] SALENTO, Italy—There is only one certainty in what has fast become a Dantesque drama to save world-renowned olive groves in Puglia from the deadly Xylella fastidiosa bacterium: olive trees, the very symbol of this southern Italian region, are dying en masse.
Hundreds of acres of once-vibrant, postcard-perfect groves that have prospered for centuries are now cemeteries where twisted, dead tree trunks protrude like arboreal zombies from fertile soil in which grass and flowers easily grow. Almost every other aspect of the drama, especially the science of how the bacterium spreads and how to stop it, is far less clear. But no one can tell me exactly how this bacterium sickens the trees, how it moves from tree to tree or whether burning can ever work unless it destroys the entire industry. Puglia produces more than 40 percent of Italy’s olive oil, and the oil is considered among the world’s finest.
Less certain still is just how the deadly bacterium was introduced to the area. CIHEAM - JUNE 2015 - WATCH LETTER N°33 - Assessing the risk posed to plant health by Xylella fastidiosa in the European Union.