Submitted to: National Cotton Council Beltwide Cotton Conference
Publication Type: Abstract Only
Publication Acceptance Date: 10/13/2006
Publication Date: 1/11/2007
Citation: Pettigrew, W.T. 2007. The Detrimental Effects High Temperatures Have on Mississippi Delta Cotton. National Cotton Council Beltwide Cotton Conference abstracts January 9-12, 2007. http://ncc.confex.com/ncc/2007/techprogram/P5952.HTM Interpretive Summary:
Technical Abstract: Since the appearance of Asian soybean rust, or ASR, in the United States, the Mississippi State University Extension Service, the Mississippi Agricultural Forestry and Experiment Station and the Mississippi Soybean Promotion Board have joined forces with the U.S. Department of Agriculture and the Bureau of Plant Industry to monitor and control the disease, which has been detected in over ten counties in MS since its discovery in the U.S. on November 6, 2004. In 2006, the sentinel plot system continued with 17 soybean plots planted between March 1 and March 9 being monitored weekly for the appearance of the disease. Producers’ fields were checked regularly, as were kudzu plots and other legume hosts. Spore traps were also strategically placed across the state in order to detect both rain-washed and airborne spores. Fungicide efficacy, timing and deposition studies were continued to evaluate the rust approved and experimental fungicides to determine their effectiveness against ASR and other major soybean diseases present in MS and how they best fit into a disease management program. USDA researchers in Stoneville continued efforts to identify and create ASR resistant germplasm and develop better DNA selection methods. Over 500 breeding lines were evaluated with 20 accessions having been identified with a high level of resistance to the Paraguay ASR isolate. Stoneville has an APHIS PPQ approved quarantine facility.