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 growing environments from 2019 to 2021. Across all growing environments, cyantraniliprole residues were less than 2.0 ppm but were highest in the uppermost stalk position. Conversely, flutriafol residues ranged from 1.25 to 4.57 ppm and were highest in the lowermost stalk position. The same trend was documented in the combination treatment of flutriafol + azoxystrobin. Residues of S-metolachlor were not detected in any stalk position group. (Reprinted with permission)