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Oïdium de la tomate

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International Journal of Ecosystems and Ecology Sciences (IJEES) Vol. 6 (4) 505-508 (2016) EVALUATION OF SOME REDUCED-RISK PRODUCTS FOR MANAGEMENT OF POWDERY MILDEW IN GREENHOUSE TOMATOES. Molecular Plant Pathology 2(6):303-9 · November 2001 The tomato powdery mildew fungus Oidium neolycopersici. INRA - 2017 - EPHYTIA - Pseudoidium neolycopersici (L. Kiss) L. Kiss - Oïdium externe. Pseudoidium neolycopersici (L.

INRA - 2017 - EPHYTIA - Pseudoidium neolycopersici (L. Kiss) L. Kiss - Oïdium externe

Kiss) L. Kiss Oïdium externe - classification : Fungi, Ascomycota, Leotiomycetes, Leotiomycetidae, Erysiphales, Erysiphaceae - téléomorphe : Erysiphe -synonyme : Oidium neolycopersici L. . - dénomination anglaise : powdery mildew, white mold Ce nouvel oïdium de la tomate, bien différent de Leveillula taurica, fait parler de lui depuis deux décennies dans de nombreux pays du monde, en Europe, Afrique, au nord et au sud du continent américain, et en Asie.

Cet oïdium, qui a la fâcheuse tendance à se généraliser rapidement dans les nouvelles zones de production touchées, voire dans les pays où il est émergent, peut être à l'origine de dégâts considérables si aucune mesure n'est prise pour le maîtriser. Il a été introduit en France en 1986 dans la région d'Orléans par l'intermédiaire de jeunes plants de tomate importés des Pays-Bas. CONFEDERATION SUISSE - 2011 - La lutte contre l’oïdium de la tomate. Michel V., Gilli C., Jermini M., Heller W.

CONFEDERATION SUISSE - 2011 - La lutte contre l’oïdium de la tomate.

Ed. Station de recherche Agroscope Changins-Wädenswil ACW, Changins, Wädenswil. 2011 autres langues: allemand | italien Téléchargement allemand (259 kB) Téléchargement français (356 kB) Téléchargement italien (310 kB) Résumé: Fiche technique. South African Journal of Botany. 07/2015; First detection of tomato powdery mildew caused by Oidium neolycopersici in South Africa. You are using an outdated version of Firefox which is not supported by ResearchGate anymore.

South African Journal of Botany. 07/2015; First detection of tomato powdery mildew caused by Oidium neolycopersici in South Africa

For a faster, safer browsing experience, upgrade your browser now. <div class="c-box-warning full-width-element" style="text-align: center; "><div style="margin: auto; padding:10px;" class="container"><b>For full functionality of ResearchGate it is necessary to enable JavaScript. Here are the <a href=" rel="nofollow" target="_blank"> instructions how to enable JavaScript in your web browser</a>. </b></div></div> Article First detection of tomato powdery mildew caused by Oidium neolycopersici in South Africa South African Journal of Botany (Impact Factor: 0.98). 07/2015; 99.

PLOS 20/06/13 Powdery Mildew Resistance in Tomato by Impairment of SlPMR4 and SlDMR1. Genetic dissection of disease susceptibility in Arabidopsis to powdery and downy mildew has identified multiple susceptibility (S) genes whose impairment results in disease resistance.

PLOS 20/06/13 Powdery Mildew Resistance in Tomato by Impairment of SlPMR4 and SlDMR1

Although several of these S-genes have been cloned and characterized in more detail it is unknown to which degree their function in disease susceptibility is conserved among different plant species. Moreover, it is unclear whether impairment of such genes has potential in disease resistance breeding due to possible fitness costs associated with impaired alleles. Here we show that the Arabidopsis PMR4 and DMR1, genes encoding a callose synthase and homoserine kinase respectively, have functional orthologs in tomato with respect to their S-gene function. Silencing of both genes using RNAi resulted in resistance to the tomato powdery mildew fungus Oidium neolycopersici. Resistance to O. neolycopersici by SlDMR1 silencing was associated with severely reduced plant growth whereas SlPMR4 silencing was not. NORWEGIAN UNIVERSITY OF LIFE SCIENCES - MAI 2013 - Effect of light on powdery mildew in greenhouse tomato (Solanum lycopersicum 'espero') PLANT OMICS JOURNAL - 2014 - Genome-wide analysis of the mildew resistance locus (MLO) gene family in tomato (Solanum lycopersicum L.)

UNIVERSITY OF CALIFORNIA - UC IPM - Powdery Mildew on Field-grown Tomatoes. Leaves on infected tomato plants develop irregular, bright yellow blotches; severely affected leaves die but seldom drop.

UNIVERSITY OF CALIFORNIA - UC IPM - Powdery Mildew on Field-grown Tomatoes.

Spots of dead tissue, sometimes surrounded by a yellow halo, eventually appear in the blotches. There are no lesions on stems or fruit. Rarely, a gray mycelium develops on the lower leaf surface of infected leaves. Severe infections kill leaves and result in sunburn fruit and weakened plants. Powdery mildew occurs in most tomato-growing areas of California. When conditions are conducive to disease development, fungicide applications may be necessary to control powdery mildew. Organically Acceptable Methods Sulfur sprays are acceptable for use on organically certified produce. Monitoring and Treatment Decisions A weather-based, forecasting model is available online. Fungicides are not needed for control unless the disease becomes extensive. UC IPM Pest Management Guidelines: Tomato UC ANR Publication 3470 Diseases R.

UNIVERSITY OF FLORIDA - Powdery Mildew on Tomato. CALIFORNIA AGRICULTURE - MARCH/APRIL 1988 - The epidemiology of powdery mildew on tomatoes. THE CONECTICUT AGRICULTURAL EXPERIMENT STATION - AVRIL 2013 - Powdery mildew of tomato. CONNECTICUT AGRICULTURAL EXPERIMENT STATION 08/03/12 Powdery mildew in the greenhouse.