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IR - 4 Progress Report 2002 Tennessee IR-4 Center N. B. Shamiyeh and A. B. Smith Crossville, Tennessee The Tennessee IR-4 Center located at Crossville, Tennessee conducted fifteen Residue Trials which included Greenhouse Tomato production; Apple production, Grasses; Mustard Green; Lima Beans . These residue projects were completed and reports were sent to IR-4 Headquarters. Four efficacy projects were conducted at the Plateau Experiment Station, Crossville. Bio-pesticides were used for insect and disease control on crops such as Peppers, Lettuce, Tomato, and Squash. Fungicide trials had 14 treatments. BAS-500, BAS-510, Serenade and other chemicals were among the treatments tested for performance against late, early blight and Botrytis. 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.. Control of Rust in Snap Beans trial encompassed 7 treatments with Serenade Bio-fungicide included alone and in combination with BAS-510. Plots treated with Serenade provided about 50% control of White Rust. Treatment list included new insecticides, biologicals and old standards. Worm populations in plots treated with the numbered compound S-1812 , and combinations of S-1812 and other standard chemicals were as low as plots treated with standards in vegetables such as lettuce, tomatoes, and peppers. Colorado Potato Beetle larvae populations in plots treated with the numbered chemical V-10112 were as low as plots treated with Provado or Actara. Plots treated with the high rate of Actara produced significantly higher yields than the other treatments. Bio-pesticides in general were as effacacious as the other chemicals in control of insects and diseases. Five efficacy trials at the Tobacco Experiment Station in Greeneville were conducted on Burley tobacco for aphid and worm control. Treatments such as Orthene, Admire or Actara were effective in for aphid control for the growing season. Among the Transplant solution insecticides, plots treated with Platinum in the transplant water were aphid free throughout the entire growing season. But when applied as a drench, aphid populations increased at topping. Among the biological insecticides, S-1812 was very effective for, budworm control. The Insect Growth Regulator such as Messenger seemed to enhance tobacco growth but decreased aphid control when mixed with other insecticides. The IR-4 has achieved over 5500 pest control and over 200 biopesticide clearances on food crops. This assisted the growers as well as the consumers in having the tools to protect the crops from pest destruction. Pesticide Efficacy Research have identified effective chemicals for Early and Late Blight on Tomatoes (BAS-500 and 510) both in field and greenhouse production. Cabbageworm and cabbage looper Control with safe and effective Biological insecticides ( S-1812). Season-long aphid control on tobacco (Platinum, Orthene, and Admire). All Data is shared with Extension Agents for recommendations to the growers. |
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