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  1. CORESTA Meeting, Agronomy/Phytopathology, 2017, Santa Cruz do Sul, AP 42

    Progress in development of a high-throughput phenotyping test as breeding tool for broomrape resistance in tobacco: an overview of results

    MALPICA A.(1); VERRIER J.-L.(1); BACHET S.(1); BEN JEMAA F.(2); POUVRAUD J.-B.(2); SIMIER P.
    (1) Bergerac Seed & Breeding, Bergerac, France; (2) Laboratoire de Biologie et de Pathologie Végétale, Nantes University, Nantes, France
    Tobacco broomrape (Phelipanche ramosa) is a widespread parasitic plant that causes serious damage in some countries. Selection of resistant varieties is an essential pillar of an integrated broomrape control strategy but research performed on...
  2. CORESTA Meeting, Agronomy/Phytopathology, 2017, Santa Cruz do Sul, AP 43

    Evaluation of dark tobacco transplanting intervals following 2,4-D and saflufenacil herbicide applications

    BAILEY W.A.; RODGERS J.C.; KEENEY A.B.; RICHMOND M.D.
    University of Kentucky Research and Education Center, Princeton, KY, U.S.A.
    Marestail (Conyza canadensis L.) has become a major weed problem in dark tobacco production in western Kentucky due to its persistence in conservation tillage production systems and its tolerance to glyphosate herbicide that is typically used in...
  4. CORESTA Meeting, Agronomy/Phytopathology, 2017, Santa Cruz do Sul, AP 45

    Preliminary study on the metabolites of Spirotetramat in tobacco for possible residue definition

    OYAMA K.(1); NAKABAYASHI T.(1); NAKAJIMA K.(1); VANN M.C.(2)
    (1) Japan Tobacco, Inc., Leaf Tobacco Research Center, Oyama-shi, Tochigi, Japan; (2) North Carolina State University, Department of Crop & Soil Sciences, Raleigh, NC, U.S.A.
    Residue definitions are determined for enforcement/risk assessment purposes when legislative Maximum Residue Levels for food/feed are established. Spirotetramat (SP) is an insecticide and has been selected as one of the Guidance Residue Level (GRL)...
  7. CORESTA Meeting, Agronomy/Phytopathology, 2017, Santa Cruz do Sul, AP 48

    High performance amino acid application and its relationship with flumetralin residues in flue-cured tobacco: impact in sucker control and tobacco sustainability in Brazil

    GUERRA J.(1); GUERRA T.(1); COSTA C.E.(1); THIESEN M.(1); BRONDANI DA ROCHA A.(2)
    (1) LBE Biotecnologia Brasil Ltda, Bairro Areias, São José, SC, Brazil; (2) Plantarum Desenvolvimento e Tecnologias, Bairro Centro, Sinimbu, RS, Brazil
    Sucker control in flue-cured tobacco planted in Brazil is based on use of the active ingredient flumetralin, whose dosage varies from 3.0 to 4.0 L/hectare, and is classified as toxicological class I in Brazil. Not only is the tobacco industry...
  8. CORESTA Meeting, Agronomy/Phytopathology, 2017, Santa Cruz do Sul, AP 49

    Potential alternative control for Ephestia spp. using parasitoid wasps

    KÖHLER A.(1); PEZZINI C.(1); ROESCH F.(2); FEUERBORN M.(2)
    (1) Universidade de Santa Cruz do Sul (UNISC), Laboratory of Entomology, Santa Cruz do Sul, RS, Brazil; (2) Japan Tobacco International (JTI), Santa Cruz do Sul, RS, Brazil
    Different practices are already used to control lepidopteran pests in stored tobacco, mostly including chemical or physical practices, preventive or disinfesting. Biological methods, used more frequently in tobacco field sites, are not used yet in...
  9. CORESTA Meeting, Agronomy/Phytopathology, 2017, Santa Cruz do Sul, AP 50

    Trichome extracts from Nicotiana hybrids - a resource for testing disease/insect resistance

    MIHAYLOVA-KROUMOVA A.B.; WAGNER J.G.
    University of Kentucky, KTRDC, Lexington, KY, U.S.A.
    Glandular trichomes on the surface of species of the Solanaceae family produce sugar esters (SEs) that are species and cultivar-specific. SEs have insecticidal, antibiotic, and hormone-like properties, i.e. SE with medium-chain acyl groups (C7-C12)...
  10. CORESTA Meeting, Agronomy/Phytopathology, 2017, Santa Cruz do Sul, AP 51

    Change of microbial community composition in bacterial wilt infected tobacco-planting soils and regulation of the functional bio-organic fertiliser

    WANG Rui(1); TAN Jun(1); SHI Heli(1); ZHAO Xiuyun(2)
    (1) Enshi Tobacco Company of Hubei Province of CNTC, Enshi, Hubei, P.R. China; (2) College of Life Science and Technology, Huazhong Agricultural University, Wuhan, P.R. China
    Bacterial wilt caused by Ralstonia solanacearum is one of main soil-borne diseases during the growth of tobacco. Soil microbes play important roles in tobacco growth and health. Little is known about the differences of soil microbes between healthy...