References of "Journal of Plant Pathology [=JPP]"
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See detailFactors affecting Tan Spot on winter wheat in the Grand-Duchy of Luxembourg
El Jarroudi, Moussa ULg; Kouadio, Louis; Beyer, Marco et al

in Journal of Plant Pathology [=JPP] (2013), s1

Tan spot caused by Drechslera tritici-repentis was identified for the first time in the Grand-Duchy of Luxembourg (GDL) in 1999 on the basis of morphological characters. In order to optimize disease ... [more ▼]

Tan spot caused by Drechslera tritici-repentis was identified for the first time in the Grand-Duchy of Luxembourg (GDL) in 1999 on the basis of morphological characters. In order to optimize disease control measures in this country, tillage methods, cultivar resistance, and fungicides effects were investigated during 1999-2009 in four sites. Over this period, only three years (i.e. 1999, 2000, and 2009) with epidemic outbreak were recorded. Field experiments showed a significant difference in disease severity between sites (P < 0.001), cultivars (P < 0.0001) and years (P < 0.001). In years with epidemic outbreak, the interaction of cultivars with non-inversion tillage, intensive winter wheat production, and favorable weather conditions caused an early outbreak of the disease and a significant severity at growth stage 83 (early dough). Non-inversion tillage was found to be a major factor increasing the tan spot severity compared to conventional tillage. Furthermore, the analysis revealed that the disease severity was related to the cultivar’s susceptibility. For cultivars with similar phenology, the severity differed between the cultivar with the highest and the one with ne lowest susceptibility by a factor of two to four. The study also showed that no fungicide (mix of triazoles and strobilurins) effect was observed in the epidemic years, except in 2000. [less ▲]

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See detailModels to predict the combined effects of temperature and relative humidity on Pectobacterium Atrosepticum and Pectobacterium carotovorum subsp. Carotovorum population density and soft rot disease development at the surface of wounded potato tubers
Moh, Augustin; Massart, Sébastien ULg; Lepoivre, Philippe ULg et al

in Journal of Plant Pathology [=JPP] (2012), 94(1), 181-191

The main objectives of this study were to evaluate and model the influence of temperature (10, 15 and 20°C), relative humidity (86, 96 and 100%) and initial concentration of bacterial inoculum (105, 107 ... [more ▼]

The main objectives of this study were to evaluate and model the influence of temperature (10, 15 and 20°C), relative humidity (86, 96 and 100%) and initial concentration of bacterial inoculum (105, 107 et 109 CFU ml-1) on the population density of Pectobacterium atrosepticum (Pba) and Pectobacterium carotovorum subsp. carotovorum (Pcc) which are important potato pathogens in temperate climates, and on the development of soft rot symptoms caused by these bacteria at the surface of wounded potatoes tubers under controlled conditions. Experiments were carried out according to a Box-Behnken experimental design, simplifying prediction of the combined effects of three controlled factors. With both bacterial species, statistical analysis showed a significant effect of temperature, relative humidity and initially applied bacterial concentration on population dynamics and soft rot development at the surface of wounded potato tubers. Multiple regression analyses and the contour plots showed that the temperature is the most important factor, followed by the initially applied bacteria concentration and relative humidity. More than 64% of the variability of the soft rot symptoms observed could be explained by the presence of Pba and Pcc at the level of wounded potato tubers under the combined effect of tested factors. The quadratic polynomial models developed in our research should integrate the heterogeneity of tested bacteria belonging to the same species (which was not evaluated in this preliminary investigation) in further research. [less ▲]

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See detailTIMELY FUNGICIDE APPLICATION: A STRATEGY TO MINIMIZE FUSARIUM HEAD BLIGHT AND ASSOCIATED MYCOTOXIN PRODUCTION IN WINTER WHEAT
Giraud, Frédéric; Pasquali, Mattias; El Jarroudi, Moussa ULg et al

in Journal of Plant Pathology [=JPP] (2011), 93(1, supplement), 115-118

Re-emergence of Fusarium head blight (FHB) on wheat should be taken into account in the global management of cropped fields, especially with respect to fungicide application schemes, due to harmful toxin ... [more ▼]

Re-emergence of Fusarium head blight (FHB) on wheat should be taken into account in the global management of cropped fields, especially with respect to fungicide application schemes, due to harmful toxin production. The aim of this study was to assess, in three experimental fields representative of the various topoclimatological zones of Luxembourg, the impact of timing of fungicide spray application on the prevalence and severity of FHB, the concentration of mycotoxins, and Fusarium strain pattern in winter wheat. It was found that fungicide treatments and the time of application had a significant impact on the amount of deoxynivalenol (DON) detected (P=0.027, ANOVA). In our experimental design, the application of fungicides at 3 different times increased the amount of DON in winter wheat compared to two and single applications. The importance of the timing of fungicide application is discussed in relation to limiting toxin contamination in the field. [less ▲]

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See detailFirst report of the breakdown of the YR17 resistance gene to wheat stripe rust in the Grand Duchy of Luxembourg
El Jarroudi, Moussa ULg; Giraud, Frédéric; Tychon, Bernard ULg et al

in Journal of Plant Pathology [=JPP] (2011), 93(1), 243

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See detailSITE – SPECIFIC MONITORING FOR DISEASE FORECASTING IN WINTER WHEAT.
El Jarroudi, Moussa ULg; Giraud, Frédéric; Delfosse, Philippe et al

in Journal of Plant Pathology [=JPP] (2011), 93(Supplement 1), 19-20

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See detailGenetic diversity of flexiviruses infecting pome fruit trees
Gadiou, S.; Kundu, J.K.; Paunovic, S. et al

in Journal of Plant Pathology [=JPP] (2010), 92(3), 685-691

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See detailFirst report of wheat powdery mildew and its severity in the Grand-Duchy of Luxembourg over the 2003-2009 period
El Jarroudi, Moussa ULg; Giraud, Frédéric; Tychon, Bernard ULg et al

in Journal of Plant Pathology [=JPP] (2009), 91(S4), 109

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See detailSystemic resistance induction in tomato by Pseudomonas putida BTP1: investigation of defense pathways.
Mariutto, M.; Duby, Franceline ULg; Ongena, Marc ULg et al

in Journal of Plant Pathology [=JPP] (2008), 90

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See detailDefence responses induced in tobacco cells by Bacillus lipopeptides acting as elicitors of systemic resistance in plants
Henry, G.; Jourdan, E.; Thonart, Philippe ULg et al

in Journal of Plant Pathology [=JPP] (2008), 90

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See detailEcological fitness of plant-beneficial Bacillus subtilis strains in soil: influence of rhizosphere specific parameters on surfactin synthesis.
Nihorimbere, V.; Fickers, P.; Thonart, Philippe ULg et al

in Journal of Plant Pathology [=JPP] (2008), 90

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See detailGossypol. A substance likely involved in the cotton / Fusarium oxysporum f. sp. vasinfectum interaction
Turco, E; Brubaker, C; Scown, J et al

in Journal of Plant Pathology [=JPP] (2004)

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