N. B. Shamiyeh, A. B. Smith and C. A. Mullins

The Tennessee IR-4 Center located at Crossville, Tennessee conducted twelve residue trials: Pr. # 007406.01-TN01 (Buprofezin / Tomato-greenhouse ); Pr. # 08035.01-TN02 (Bifenazate / Tomato-greenhouse ); Pr. # 07737.01-TN03 (Diflubenzuron / Peanut ); Pr. # 07737.01-TN04 (Diflubenzuron / Peanut ); Pr. # 07581.01-TN05 ( Sulfentrazone / Mustard Green ); Pr. # 08040.01-TN06 ( Spinosad / Grasses ); Pr. # 08040.01-TN07 ( Spinosad / Grasses ), Pr. # 0769.01-TN08 (Dimethnamid / Turnip ); Pr. # 07524.01-TN09 (Methoxyfenozide / Grasses); Pr. # 07524.01-TN10 (Methoxyfenozide / Grasses ); Pr. # 08031.01-TN11 (Diflubenzuron / Mustard Green ); Pr. # 06776.01-TN12 (efenoxam / Lima Bean ). These residue projects were completed with the field books submitted around mid-November.

Four efficacy projects were conducted at the Plateau Experiment Station, Crossville with completion of three and one is in progress. The project on Tomato fungicides had 14 treatments including the UTC. BAS-500, BAS-510, Serenade and other chemicals were among the treatments tested for performance against late and early blight. Plots treated with BAS 500 and 510 had the lowest disease incidence among the other treatments. Disease rating for plots treated with Seranade did not differ from the untreated.. Project for control of rust in Snap beans encompassed 7 treatments with Serenade fungicide included alone and in combination with Bas-510. Plots treated with serenade alone provided about 50% control while in combination with BAS-500 provided 100 % control. The third project involved a biopesticide Nature’s Glory as a herbicide for weed control. This project involved 6 treatments with Nature’s Glory alone and in combination with Select herbicide. Due to utilization of a very low rate suggested by the chemical company of a dilution of 1:30 , no control was evident. The correct rate should be 1:3 which would be prohibitive in cost. The 4^th project underway involves 12 treatments of herbicides for weed control in Cole Crops (Broccoli, Cauliflower, and Cabbage); some of the treatments include Pyridate, Sulfentrazone, Clomazone, Carfentrazone, and Dimethenamid.

Two people from Tennessee attended the Good Laboratory Practices training session held by IR-4 in San Antonio, Texas; this workshop was very informative and offered valuable GLP training. Three people from Tennessee also attended the IR-4 Food-Use Workshop in Fort Collins, Co. This workshop did not only prioritize projects for the year 2000 but offered the participants the opportunity to submit clearance forms for chemicals that are important to the growers of each state. This workshop is VERY IMPORTANT TO THE MINOR USE PROJECTS OF EACH STATE. Tennessee submitted over 50 clearance forms prior to and during the Workshop.

A continuing information program about the benefits of IR-4 Research for the Tennessee grower is carried out at all levels with Field Day Presentations, Department Seminars, In-Service Training for Extension and County Agents, and on the Web Page.

Email all comments and suggestions to ghonea@utk.edu
Copyright © 1999 by The University of Tennessee. All rights reserved.

This research represents one season's data and does not constitute recommendations.  After sufficient data is collected over the appropriate number of seasons, final recommendations will be made through research and extension publications.