WINETITLES 09/12/19 Charles Sturt research identifies potential for new biocontrol of grapevine trunk diseases. Research at the National Wine and Grape Industry Centre (NWGIC) has identified the potential for a bacterial strain that naturally occurs in grapevines to combat a destructive disease in vineyards.
The research by a Charles Sturt University (Charles Sturt) PhD student, Jennifer Niem, is focused on the fungal infections that cause grapevine trunk diseases (GTDs), which can affect all major grapevine varieties grown in Australia and leads to dieback, yield losses and can eventually kill the vine. Niem’s research has identified a particular strain of bacterium from the Pseudomonas group, which is showing great potential as a biological control agent. “A number of strains of the Pseudomonas bacteria were collected from grapevines in Wagga Wagga, Hilltops and the Hunter Valley in NSW,” Niem said. “These were tested in the laboratory for their ability to inhibit fungi, which cause two of the most important GTDs found in Australia, eutypa dieback and botryosphaeria dieback.”
Photo: Jennifer Niem. S. Afr. J. Enol. Vitic., Vol. 31, No. 2, 2010 Protection of Grapevine Pruning Wounds against Eutypa lata by Biological and Chemical Methods. IOBC wprs Bulletin Vol. 29 (11) 2006 S.103-108 First detection of Eutypa lata (Pers.:Fr.) Tul. with PCR directly out of grapevine trunks in Germany. AUSTRALIAN JOURNAL OF GRAPE AND WINE RESEARCH 02/12/16 Developing pruning wound protection strategies for managing Eutypa dieback. Background and Aims Eutypa dieback is an economically important disease of grapevines and a major threat to vineyard longevity throughout the world.
Developing effective preventative strategies offers the best means of control. In this study, pruning wound protectants and various spray applications were evaluated for their ability to prevent infection by ascospores of Eutypa lata. Methods and Results Fungicides and natural alternative treatments were applied by hand to grapevine pruning wounds in winter prior to inoculation with E. lata. Conclusion Eutypa dieback can be controlled with several fungicides and natural treatments. Significance of the Study Results of this study contributed to registration of fungicides for use as pruning wound treatments to control E. lata in Australia. APS - AOUT 2017 - A Method to Detect and Quantify Eutypa lata and Diplodia seriata-Complex DNA in Grapevine Pruning Wounds.
Turk J Agric For (2014) 38: 865-876 Occurrence of Botryosphaeriaceae species associated with grapevine dieback in Algeria. Plant Pathology. 08/2012; Grapevine trunk diseases: Complex and still poorly understood. PHYTOPATHOLOGIA MEDITERRANEA - AOUT 2013 - Au sommaire: Statistical analysis of grapevine mortality associated with esca or Eutypa dieback foliar expression. GROWING PRODUCE 28/05/15 Tips For Grapevine Trunk Disease Diagnostics, Prevention, and Control. Various pathogens and environmental factors are considered to be major threats to the vineyard’s health.
Pathogens are disease-causing organisms such as fungi, bacteria, viruses, nematodes, and insects. In addition, adverse environmental conditions such as frost, hail, heat, chemical injury, nutrient toxicity or deficiency, improper cultural practices, and sanitation have an effect on vineyard health. As an example, a vineyard might be infected with pathogens without showing symptoms until adverse environment conditions compromise the plant defense mechanisms and trigger disease progression.
Our lab focuses on the detection and control of pathogens that are propagated by grafting (i.e., graft transmitted pathogens). PHYTOPATHOLOGIA MEDITERRANEA - 2013 - Statistical analysis of grapevine mortality associated with esca or Eutypa dieback foliar. The PDF file you selected should load here if your Web browser has a PDF reader plug-in installed (for example, a recent version of Adobe Acrobat Reader).
PHYTOPATHOLOGIA MEDITERRANEA - 2013 - Statistical analysis of grapevine mortality associated with esca or Eutypa dieback foliar expression – guatemalt
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Alternatively, you can download the PDF file directly to your computer, from where it can be opened using a PDF reader. To download the PDF, click the Download link above. Fullscreen Fullscreen Off. PHYTOPATHOLOGY - 2008 - Pathogenesis of Eutypa lata in Grapevine: Identification of Virulence Factors and Biochemical Characteri. Plant Pathology 20/06/11 Genetic structure of the fungal grapevine pathogen Eutypa lata from four continents. PLANT MANAGEMENT NETWORK - 2001 - Eutypa Dieback of Grapevine and Apricot. Eutypa Dieback of Grapevine and Apricot Gary P.
Munkvold, Department of Plant Pathology, Iowa State University, Ames, IA 50010 Disease: Eutypa dieback Primary Economic Host: Vitis L. spp. (grapevine), Prunus armeniaca L. Pathogen: Eutypa lata (Pers:Fr.) Taxonomy The pathogen on apricot was originally described as E. armeniacae (1). Symptoms and Signs Grapevine. Apricot. Host Range E. lata occurs on at least 88 species of woody dicots in 52 genera (3,5), including many forest and ornamental species.
Geographical Distribution. Phytopathology. 2010 Oct;100(10):1048-56. Host range, biological variation, and phylogenetic diversity of Eutypa lata in Califor. Molecular Ecology Resources (2009) 9, 222–224 Microsatellite markers for the grapevine pathogen, Eutypa lata.