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50th TWC, Tob. Work. Conf., 2022, abstr. 14

Recent investigations of chloride application to flue-cured tobacco

VANN M.C.; SHORT M.M.; WHITLEY D.S.; MACHACEK J.L.; CHEEK J.A.

North Carolina State University, Raleigh, NC, USA

Recent fertilizer price increases have caused commercial farmers to consider alternative input sources for select nutrients. The blending of potassium chloride with potassium sulfate or sulfate of potash magnesia is a scenario that is commonly...
50th TWC, Tob. Work. Conf., 2022, abstr. 23

Developing nitrogen and potassium fertilizer recommendations for cigar wrapper tobacco in North Carolina

SHORT M.M.; VANN M.C.; CHEEK J.A.; MACHACEK J.L.; WHITLEY D.S.

North Carolina State University, Raleigh, NC, USA

Cigar wrapper tobacco is a new crop to North Carolina, and research-based fertilizer recommendations are needed to assist farmers with commercial production. Nitrogen (N) and potassium (K) rate trials were conducted in four locations across North...
50th TWC, Tob. Work. Conf., 2022, abstr. 38

Battling MH residues with alternative application methods

ROUSSOS R.; VANN M.C.; ELLINGTON G.; CAHOON C.

North Carolina State University, Raleigh, NC, USA

Maleic hydrazide (MH) remains a critical component of sucker control programs in US tobacco production systems. However, MH residues remain a strong critique of tobacco sourced from the region. The purpose of our research was to evaluate high-output...
50th TWC, Tob. Work. Conf., 2022, abstr. 39

Cured leaf residues following applications of cyantraniliprole, flutriafol, and S-metolachlor

VANN M.C.; SHORT M.M.; WHITLEY D.S.; MACHACEK J.L; CHEEK J.A.

North Carolina State University, Raleigh, NC, USA

Recent investigations of Cyantraniliprole, Flutriafol, and S-metolachlor applications have been conducted in flue-cured tobacco on behalf of the Pesticide Committee of the Tobacco Workers Conference. Field trials were conducted in five North Carolina...
50th TWC, Tob. Work. Conf., 2022, abstr. 42

Assessment of a maleic hydrazide spray system attached to a mechanical harvester

BOSTIAN K.E.; ELLINGTON G.H.; VANN M.C.

North Carolina State University, Raleigh, NC, USA

Maleic hydrazide (MH) is a systemic plant growth regulator used to control “sucker” growth in flue-cured tobacco. Conventional application methods involve applying MH over the top of the plant to ensure proper coverage and effectiveness. But this...
50th TWC, Tob. Work. Conf., 2022, abstr. 48

Effects of harvest timing and variety selection on flue-cured tobacco holding-ability

VANN M.C.; WHITLEY D.S.; MACHACEK J.L.; CHEEK J.A.

North Carolina State University, Raleigh, NC, USA

The propensity for flue-cured tobacco leaves to retain or improve their visual quality and economic value over an extended period of time is referred to as “holding-ability”. General holding-ability models that are specific to popular varieties are...
49th TWC, Tob. Work. Conf., 2020, abstr. 12

Economic factors influencing lower-leaf removal decisions

BLALOCK C.; BROWN A.B.; VANN M.C.; FISHER L.R.; FINCH C.E.

North Carolina State University, Raleigh, NC USA

With a current global over-supply of flue-cured tobacco, tobacco producers in North Carolina have been encouraged to remove the lowermost leaves prior to harvest due to their low value in manufactured products. In field trials, the removal of 4 or 8...
49th TWC, Tob. Work. Conf., 2020, abstr. 13

Lower-leaf removal programs for flue-cured tobacco production in North Carolina

COGGINS T.; VANN M.C.; FISHER L.R.; WELLS R.; BROWN A.B.; FINCH C.E.

North Carolina Cooperative Extension Service - Davidson County, Lexington, NC USA

Sluggish demand for lower-stalk positions has prompted consideration for de-lugging programs in North Carolina. The agronomic impact of these leaf removal systems has not been fully reported. The objective of this research was to compare lower-leaf...
49th TWC, Tob. Work. Conf., 2020, abstr. 18

Comparisons of nitrogen based fertilizer programs in tobacco

SHORT M.M.; VANN M.C.; CHEEK J.A.; WHITELY D.S.

North Carolina State University, Raleigh, NC USA

Previous fertilizer research in flue-cured tobacco has compared a wide range of nitrogen (N) based programs, ultimately demonstrating the usability and function of numerous sources. However, those research efforts have not fully investigated the...
49th TWC, Tob. Work. Conf., 2020, abstr. 19

Effects of chloride application to nutrient assimilation and post-harvest measurements of flue-cured tobacco

VANN M.C.; FISHER L.R.; HARDY D.H.; PACE C.R.

North Carolina State University, Raleigh, NC USA

Chloride (Cl-) application in excess of 34 kg/ha has generally been discouraged in the production of US flue-cured tobacco, due to the negative effects the nutrient can have on cured leaf yield, quality, and smoke sensory. However, fertilizer...

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