47th TWC, Tob. Work. Conf., 2016, abstr. 71

Management of spotted wilt in tobacco with imidacloprid in the northern portion of the Georgia flue-cured belt

TYSON C.; EARLS C.; GRIFFIN C.; LANIER J.; SPAID D.; BERTRAND P.; MOORE J.M.
University of Georgia, Reidsville GA USA

Trials were conducted from 2012 to 2015 in the Candler, Evans, and Tattnall county area to evaluate the continued effectiveness of imidacloprid for management of spotted wilt in tobacco. The trials compared spotted wilt incidence in tobacco grown from imidacloprid treated seedlings versus untreated seedlings. To facilitate comparisons, trays of untreated tobacco seedlings were transplanted at the start of 4 randomly selected rows (1 tray per row). Spotted wilt was evaluated in the untreated plants and an adjacent row of treated plants resulting in 4 reps of comparison for each trial. Over the course of this study, imidacloprid generally reduced spotted wilt at or above the average of what was seen for the state as a whole. The variation in control from place to place and year to year is consistent with what is seen in Georgia as a whole. Percent stand was generally unaffected by imidacloprid treatment. (Reprinted with permission)