46th TWC, Tob. Work. Conf., 2014, abstr. 84

Evaluation of Coragen as a transplant water treatment for control of tobacco splitworm in flue-cured tobacco

Department of Crop Sciences, Coastal Plain Experiment Station, University of Georgia, 2360 Rainwater Rd., Tifton, GA 31794, USA

Splitworm infestation soon after transplanting in untreated plots of a planned foliar insect control on-farm demonstration on the Wooten farm in Jeff Davis County, Georgia in 2012 was greater than normal for this early stage of growth. Plants in plots treated with Coragen applied in the transplant water at the labeled rate of 7 oz/A was found not to have any splitworms or splitworm damage. Coragen has been labeled for three years for control of lepidoptera including tobacco budworm, tobacco splitworm and hornworms on tobacco plants. Splitworm infestation of tobacco is usually observed in more mature tobacco plants as mines in the leaves creating a window pane appearance in the leaves. However, this infestation occurred thirty days after transplanting and in addition to creating mines in the leaves many of the plants suffered damage to the buds resulting in prolific sucker growth causing problems with harvest and a reduction in yield and quality of the leaf harvested and cured from these plants. (Reprinted with permission)