Results 51 to 60 of about 3,999 (240)

Survival and viability of ascospores of Erysiphe necator in Austrian vineyards [PDF]

European Journal of Plant Pathology, 2021
AbstractGrape powdery mildew caused byErysiphe necatoris a limiting factor in grape production. In order to develop effective management strategies, the factors influencing the survival of the fungus need to be identified and characterized accordingly. For this purpose, we focused on the effect of weather conditions during overwintering on the survival
M. Redl, S. Möth, E. Koschier, B. Spangl, S. Steinkellner   +4 more
openaire   +1 more source

Emergence of boscalid-resistant strains of Erysiphe necator in French vineyards

Microbiological Research, 2018
The grapevine powdery mildew Erysiphe necator (E. necator) is an obligate pathogen. Powdery mildew-diseased vines show an important reduction in plant size, winter hardiness and grape yield. Even a low-level infection with powdery mildew was shown to taint wine and ultimately reduce wine quality. For many years, succinate dehydrogenase inhibitor (SDHI)
Semcheddine, Cherrad, Aline, Charnay, Catalina, Hernandez, Herve, Steva, Lassaad, Belbahri, Sébastien, Vacher   +5 more
openaire   +2 more sources

Evaluation of Sulfur SC 80% and Penconazole EW 20% Effects on Grape Powdery Mildew Disease and Quantitative and Qualitative Traits of Grape

Majallah-i ḥifāẓat-i giyāhān, 2017
Introduction: Fungal diseases are a major problem in the cultivation of grapevine, Powdery mildew disease caused by plant pathogenic fungus, Erysiphenecator is one of the most important and destructive diseases of grape in many countries of the world ...
Hossein Karbalaei Khiavi, Mohammad Hajian Shahri, Kavous Keshavarz, Hossein Khabbaz jolfaei, Esfandiar Zohour, Mohammad Bazubandi   +5 more
doaj   +1 more source

Occurrence ofErysiphe necatorChasmothecia and Their Natural Parasitism byAmpelomyces quisqualis [PDF]

Phytopathology®, 2009
In northern Italy, Erysiphe necator overwinters almost exclusively as chasmothecia. From 2004 to 2008, we investigated the occurrence of natural parasitism of grapevine powdery mildew chasmothecia by Ampelomyces quisqualis in the Trentino-Alto Adige region, in northern Italy.
Angeli, Dario, Pellegrini, Elisa, Pertot, Ilaria   +2 more
openaire   +4 more sources

Use of beneficial bacteria and their secondary metabolites to control grapevine pathogen diseases [PDF]

, 2013
Grapevine is one of the most important economic crops yielding berries, wine products as well as derivates. However, due to the large array of pathogens inducing diseases on this plant, considerable amounts of pesticides—with possible negative impact on
A Alfonzo, A Ficke, A Graniti, A Hartmann, A Kawaguchi, A Kawaguchi, A Kawaguchi, A Riethmueller, A Sessitsch, AD Omer, Ahmed Lebrihi, AJL Phillips, AJL Phillips, AL Varnier, Angela Sessitsch, AS Highet, B Lugtenberg, B Paul, BWM Verhagen, BWM Verhagen, C Gessler, C Kotze, CB Agüero, CR Bell, CS Schmidt, D Bulgari, D Christen, D Gramaje, DL Hopkins, DM Gadoury, E Ait Barka, E Ait Barka, E Gamalero, E Krol, E-SH Ziedan, E-SH Ziedan, ESH Ziedan, F Chen, F Chen, F Halleen, Florence Mathieu, FP Trouillas, FP Trouillas, FP Trouillas, G Berg, G Lingua, G Romanazzi, G Welbaum, Garrido LdR, GP Munkvold, Günter Brader, H-J Schoonbeek, HA Stafford, IA Khmel, J Auger, J Creasap, J Granett, J Lehoczky, J Luque, JHS Ferreira, JM Niekerk van, JR Urbez-Torres, JR Vidal, JS Shim, JW Kloepper, K Baumgartner, KC Eastwell, L Chiarappa, L Kiss, L Loon van, L Mostert, L Rovesti, L Zhang, LC Loon van, M Allègre, M Castillo-Pando, M Magnin-Robert, M Ridé, M Riedle-Bauer, M Svercel, M Svercel, MA Abdalla, MA Escobar, MV Carter, P Amaro, P Fourie, P Larignon, P Leroux, P Trotel-Aziz, PE Rolshausen, PE Rolshausen, Q Wei, R D`Amelio R, RB Ferreira, RPP Almeida, S Chatterjee, S Compant, S Compant, S Compant, S Compant, S Compant, S Compant, S Compant, S Compant, S Compant, S Ent van der, S Grasso, S John, S Lo Picollo, S Loqman, S Qin, S Sule, S Zhang, Saima Muzammil, SC Wees van, SD Sawant, Stéphane Compant, TJ Burr, TJ Burr, TJ Burr, W Bester, WD Gubler, YB Guo   +122 more
core   +2 more sources

First comprehensive phylogenetic analysis of the genus Erysiphe (Erysiphales, Erysiphaceae) II: the Uncinula lineage [PDF]

, 2015
Phylogenetic relationships of the Uncinula lineage, which is the basal group in the genus Erysiphe, were investigated with 167 sequences of nuc ITS1-5. 8S-ITS2 and the 28S rDNA regions.
Heluta, Vasyl, Ito, Hanako, Kiss, Levente, Shiroya, Yoshiaki, Takamatsu, Susumu   +4 more
core   +1 more source

Genetic Structure and Aggressiveness of Erysiphe necator Populations during Grapevine Powdery Mildew Epidemics [PDF]

Applied and Environmental Microbiology, 2008
ABSTRACT Isolates of the causal ascomycete of grapevine powdery mildew, Erysiphe necator , correspond to two genetically differentiated groups (A and B) that coexist on the same host. This coexistence was analyzed by investigating temporal changes in the genetic and phenotypic structures of E ...
Montarry, Josselin, Cartolaro, Philippe, Delmotte, François, Jolivet, Jerome, Willocquet, Laetitia   +4 more
openaire   +4 more sources

Genetic Similarity of Flag Shoot and Ascospore Subpopulations of Erysiphe necator in Italy [PDF]

Applied and Environmental Microbiology, 2005
ABSTRACT The overwintering mode of the grape powdery mildew fungus, Erysiphe necator (syn. Uncinula necator ), as mycelium in dormant buds (resulting in symptoms known as flag shoots) or as ascospores in cleistothecia, affects the temporal dynamics of epidemics early in the growing ...
P. Cortesi, A. Mazzoleni, C. Pizzatti, M. G. Milgroom   +3 more
openaire   +2 more sources

A High-Throughput Phenotyping System Using Machine Vision to Quantify Severity of Grapevine Powdery Mildew

Plant Phenomics, 2019
Powdery mildews present specific challenges to phenotyping systems that are based on imaging. Having previously developed low-throughput, quantitative microscopy approaches for phenotyping resistance to Erysiphe necator on thousands of grape leaf disk ...
Andrew Bierman, Tim LaPlumm, Lance Cadle-Davidson, David Gadoury, Dani Martinez, Surya Sapkota, Mark Rea   +6 more
doaj   +1 more source

Monitoring fungicide resistance frequencies – a case study of barley net blotch

Pest Management Science, EarlyView.
Droplet digital PCR revealed the frequency of alleles associated with decreased sensitivity to demethylation inhibitor (DMI) and succinate dehydrogenase inhibitor (SDHI) fungicides in Pyrenophora teres from barley net blotch in Western Australia. The findings highlight field‐level allele dynamics and emerging risks to fungicide efficacy.
Noel L. Knight, Kul C. Adhikari, Wesley J. Mair, Kejal Dodhia, Katherine G. Zulak, Francisco J. Lopez‐Ruiz   +5 more
wiley   +1 more source