Thomas C. Mueller

Enhancing the Ecological Risk Assessment Process (2008)

Virginia H. Dale, Gregory R. Biddinger, Michael C. Newman, James T. Oris, Glenn W. Suter, Timothy Thompson, ...

EDITOR'S NOTE: This is 1 of 4 papers from the US Environmental Protection Agency Science Advisory Board's Ecological Processes and Effects Committee workshop on the current and future practice of...

Mesosulfuron-Resistant Italian Ryegrass (Lolium Multiflorum) Biotype from Texas (2008)

Andrew T. Ellis, Gaylon D. Morgan, Thomas C. Mueller

Acetolactate synthase (ALS)–inhibiting herbicides are often used to control Italian ryegrass in winter wheat in Texas. An Italian ryegrass biotype near Waco, TX was evaluated for resistance to...

Hybrid Kentucky Bluegrass Tolerance to Preemergence and Postemergence Herbicides (2008)

Travis C. Teuton, Christopher L. Main, John C. Sorochan, J. Scott McElroy, William E. Hart, Carl E. Sams, ...

Field studies were conducted near Knoxville, TN, from 2003 to 2005 to evaluate the response of ‘Thermal Blue’, a new interspecific hybrid Kentucky bluegrass to commonly applied PRE and POST...

Palmer Amaranth (Amaranthus palmeri) in Tennessee Has Low Level Glyphosate Resistance (2008)

Lawrence E. Steckel, Christopher L. Main, Andrew T. Ellis, Thomas C. Mueller

Many agricultural producers apply glyphosate to glyphosate-resistant crops to control weeds, including Palmer amaranth. Populations of this weed in Tennessee not completely controlled by glyphosate...

Soybean Tolerance to Early Preplant Applications of 2,4-D Ester, 2,4-D Amine, and Dicamba (2007)

M. Angela Thompson, Lawrence E. Steckel, Andrew T. Ellis, Thomas C. Mueller

Preplant applications of two 2,4-D formulations and dicamba were evaluated for injury to no-till soybean. Herbicides applied 28 or 21 d before planting (DBP) at 0.56 kg ae/ha for the 2,4-D...

Sulfentrazone Adsorption and Mobility in Surface Soil of The Southern United States (2007)

G. Anthony Ohmes, Thomas C. Mueller

Sulfentrazone adsorption and mobility in six soils with varying soil properties were evaluated under laboratory conditions. Adsorption was evaluated using a modified slurry technique. Mobility was...

Proactive Versus Reactive Management of Glyphosate-Resistant or -Tolerant Weeds1 (2005)

THOMAS C. MUELLER, PAUL D. MITCHELL, BRYAN G. YOUNG, A. STANLEY CULPEPPER

The value of glyphosate has been compromised in some fields where weed populations have developed resistance or tolerant species increased. Three case studies related to reduced control from...

Broadleaf signalgrass (Brachiaria platyphylla) interference in corn (2005)

Jason L. Alford, Robert M. Hayes, G. Neil Rhodes Jr., Lawrence E. Steckel, Thomas C. Mueller

Field research was conducted in Tennessee at two locations over 3 yr under no-tillage conditions to examine the interaction of broadleaf signalgrass and corn yield. Broadleaf signalgrass was killed...

Horsenettle (Solanum carolinense) Control in Tall Fescue (Festuca arundinacea) and Clover (Trifolium sp.) Pastures with Mixtures of 2,4-D and Picloram1 (2004)

JOSEPH E. BEELER, G. NEIL RHODES, GARY E. BATES, CHRISTOPHER L. MAIN, THOMAS C. MUELLER

Herbicide treatments (4:1 ratio of 2,4-D amine:picloram) at 0.7 and 1.4 kg ae/ha at early postemergence (10- to 15-cm horsenettle height), midpostemergence (early flower), and late postemergence...

Star-of-Bethlehem (Ornithogalum umbellatum) Control with Postemergence Herbicides in Dormant Bermudagrass (Cynodon dactylon) Turf1 (2004)

CHRISTOPHER L. MAIN, DARREN K. ROBINSON, TRAVIS C. TEUTON, THOMAS C. MUELLER

Field studies were conducted near Knoxville, TN, during late March and early April 2002 and 2003, respectively, for star-of-Bethlehem control in dormant bermudagrass turf that was established over 25...

Sulfentrazone Persistence in Southern Soils: Bioavailable Concentration and Effect on a Rotational Cotton Crop1 (2004)

CHRISTOPHER L. MAIN, THOMAS C. MUELLER, ROBERT M. HAYES, JOHN W. WILCUT, THOMAS F. PEEPER, RONALD E. TALBERT, ...

Field studies were conducted from 1998 to 2000 in Tennessee, North Carolina, Arkansas, and Oklahoma to determine the effects of sulfentrazone carryover to a cotton rotational crop from sulfentrazone...

Dioscorea oppositifolia L. Phenotypic Evaluations and Comparison of Control Strategies1 (2003)

THOMAS C. MUELLER, DARREN K. ROBINSON, JOSEPH E. BEELER, CHRISTOPHER L. MAIN, DANA SOEHN, KRISTINE JOHNSON

Dioscorea oppositifolia (Chinese yam) is an exotic perennial vine invading natural areas in the temperate regions of the eastern United States. Rapid early-season growth of D. oppositifolia is...

Site-Specific Weed Management in Corn (Zea mays)1 (2003)

JOYCE TREDAWAY-DUCAR, GAYLON D. MORGAN, JOHN B. WILKERSON, WILLIAM E. HART, ROBERT M. HAYES, THOMAS C. MUELLER

Site-specific weed management can increase crop production efficiency by minimizing herbicide input costs without compromising crop yields. A reduction in herbicide inputs resulting from...

The Effect of Wheat (Triticum aestivum) Straw Levels on Chlorimuron, Imazaquin, and Imazethapyr Dissipation and Interception1 (2001)

Gary L. Schmitz, William W. Witt, Thomas C. Mueller

Dissipation of imidazolinone herbicides imazaquin and imazethapyr under no-till field conditions was not affected by straw mulch level (1,300, 3,600, or 5,900 kg/ha) in either of 2 yr of field data....

Effect of Venturi-Type Nozzles and Application Volume on Postemergence Herbicide Efficacy1 (2001)

Robert E. Etheridge, William E. Hart, Robert M. Hayes, Thomas C. Mueller

Field studies were conducted to compare venturi-type nozzles to a fan nozzle with respect to the efficacy of postemergence herbicides applied to common cocklebur and broadleaf signalgrass. Spray...

A proposal to standardize soil/solution herbicide distribution coefficients (2000)

Jerome B. Weber, Gail G. Wilkerson, H. Michael Linker, John W. Wilcut, Ross B. Leidy, Scott Senseman, ...

Herbicide soil/solution distribution coefficients (Kd) are used in mathematical models to predict the movement of herbicides in soil and groundwater. Herbicides bind to various soil constituents to...

Sulfentrazone Dissipation in a Tennessee Soil1 (2000)

G. Anthony Ohmes, Robert M. Hayes, Thomas C. Mueller

Sulfentrazone dissipation in soil was examined in field experiments in 1995, 1996, and 1997 at Knoxville, TN, on a Sequatchie loam soil. Sulfentrazone 50% disappearance time (DT50) varied from 24 to...