1. CORESTA Congress, Kunming, 2018, Agronomy/Phytopathology Groups, AP 09

    Chloride application: effects to nutrient assimilation, agronomic performance, and cured leaf chemistry of flue-cured tobacco

    VANN M.C.(1); FISHER L.R.(1); INMAN M.D.(1); HARDY D.H.(2)
    (1) North Carolina State University, Department of Crop & Soil Sciences, Raleigh, NC, U.S.A.; (2) North Carolina Department of Agriculture & Consumer Services – Agronomic Division, Raleigh, NC, U.S.A.
    Chloride (Cl-) application in excess of 34 kg ha-1 has generally been discouraged in the production of U.S. flue-cured tobacco, due to the negative effects the nutrient can have on cured leaf yield, quality, and smoke sensory. However, fertilizer...
  2. CORESTA Congress, Kunming, 2018, Agronomy/Phytopathology Groups, AP 16

    Flue-cured tobacco tip leaf yield, quality, value, and color distribution as influenced by cultivar and harvest schedule

    VANN M.C.; FISHER L.R.; INMAN M.D.; WHITLEY D.S.; SEAGROVES R.W.; BARNES K.
    North Carolina State University, Department of Crop & Soil Sciences, Raleigh, NC, U.S.A.
    Changes in consumer preference and export strategy strongly influence the buying practices of tobacco leaf dealers and cigarette manufacturers. In current times, a dark-colored (orange to red) style of flue-cured tobacco is preferred over a brighter...
  3. CORESTA Congress, Kunming, 2018, Agronomy/Phytopathology Groups, AP 21

    Quantifying dicamba residue in contaminated sprayers

    INMAN M.D.; VANN M.C.; FISHER L.R.; GANNON T.W.; JORDAN D.L.
    North Carolina State University, Department of Crop & Soil Sciences, Raleigh, NC, U.S.A.
    The deregulation of dicamba-tolerant cotton and soybean has increased the potential for dicamba exposure to tobacco through drift or tank contamination. Improper cleaning of sprayer equipment and off-target dicamba exposure can have detrimental...
  4. CORESTA Congress, Kunming, 2018, Agronomy/Phytopathology Groups, AP 22

    Field screenings of S-metolachlor for weed suppression in flue-cured tobacco

    CLAPP A.M.; VANN M.C.; FISHER L.R.; INMAN M.D.; SEAGROVES R.W.
    North Carolina State University, Department of Crop & Soil Sciences, Raleigh, NC, U.S.A.
    With limited herbicide options and a growing concern to herbicide-resistant weeds, there is a strong need for additional chemical weed control materials in tobacco. S-metolachlor is labeled for use in a variety of agronomic and horticultural crops in...
  5. CORESTA Congress, Kunming, 2018, Agronomy/Phytopathology Groups, APPOST 27

    Critical period for weed control in flue-cured tobacco

    INMAN M.D.; VANN M.C.; FISHER L.R.; JORDAN D.L.
    North Carolina State University, Department of Crop & Soil Sciences, Raleigh, NC, U.S.A.
    Field experiments were conducted to determine the critical period for weed control (CPWC) in flue-cured tobacco. This period consists of two separately measured timings; a critical weed-free period and a critical timing for the weed removal period....
  6. CORESTA Congress, Berlin, 2016, Agronomy/Phytopathology Groups, AP 09

    Effect of organic nitrogen source and application rate on the yield and quality of flue-cured tobacco

    VANN M.C.; FISHER L.R.; WHITLEY D.S.
    North Carolina State University, Dept. of Crop Science, Raleigh, NC, U.S.A.
    Organic carbon-based sources of nitrogen, such as livestock waste or by-products, have not been recommended for the production of flue-cured tobacco. At present, there is significant demand for organically produced leaf, and in these systems the use...
  7. CORESTA Congress, Berlin, 2016, Agronomy/Phytopathology Groups, AP 10

    Effect of organic nitrogen source and application timing on the yield and quality of flue-cured tobacco

    MASON J.H.; VANN M.C.; FISHER L.R.; WHITLEY D.S.
    North Carolina State University, Dept. of Crop Science, Raleigh, NC, U.S.A.
    Mineralization rates of organic nitrogen are extremely dependent upon factors such as soil pH, temperature, and moisture. Flue-cured tobacco is extremely sensitive to nitrogen availability; therefore, many questions have been presented regarding...
  8. CORESTA Congress, Berlin, 2016, Agronomy/Phytopathology Groups, AP 21

    Evaluation of three transgenic and three conventional varieties for low alkaloid production with three nitrogen variables

    CHEEK J.A.; VANN M.C.; LEWIS R.S.; FISHER L.R.
    North Carolina State University, Dept. of Crop Science, Raleigh, NC, U.S.A.
    Nicotine is one of the most studied and scrutinized plant secondary metabolites. In the United States, its concentration in tobacco products now falls under the jurisdiction of the Food and Drug Administration and it has been speculated that...
  9. CORESTA Congress, Berlin, 2016, Agronomy/Phytopathology Groups, AP 34

    Evaluation of non-tobacco labeled herbicides for late season application

    WHALEY W.T.; VANN M.C.; FISHER L.R.; WHITLEY D.S.
    North Carolina State University, Dept. of Crop Science, Raleigh, NC, U.S.A.
    Recently, viable seed from various weed species has been found in tobacco exports from the United States, initiating great concern in foreign markets and a zero tolerance policy. University specialists believe the majority of weed seed contamination...
  10. CORESTA Congress, Berlin, 2016, Agronomy/Phytopathology Groups, AP 36

    Spinosad and cyantraniliprole residues in flue-cured tobacco

    INMAN M.D.; VANN M.C.; SEAGROVES R.W.; FISHER L.R.
    North Carolina State University, Dept. of Crop Science, Raleigh, NC, U.S.A.
    From 2013 to 2015 research was conducted to establish the maximum expected pesticide residue on cured tobacco that would result from a maximum labeled application rate and minimum pre-harvest interval of specific active ingredients. Residues of two...