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Patterns And Mechanisms Of The Exploitation Of Mutualisms, Ellen Mcgrail Reid Jan 2010

Patterns And Mechanisms Of The Exploitation Of Mutualisms, Ellen Mcgrail Reid

LSU Master's Theses

Mutualisms are reciprocally exploitative interactions providing net benefits to both partners. These interactions can be exploited, in turn, by individuals that take advantage of benefits offered by one or both partners in a mutualism, while offering no benefits in return. For many mutualist-exploiter interactions the mechanisms allowing exploitation, and the maintenance of mutualisms in the face of exploitation, are still poorly understood. Here I describe manipulative field and laboratory experiments to investigate the mechanisms used by an exploiter to invade an ant-plant mutualism. I tested two non-mutually exclusive hypotheses for how a coreid (Mozena sp., Hemiptera: Coreidae) feeds on mymecophytic …

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Comparative Studies Of Innate Host Defense Mechanisms Against Virulent And Avirulent Species Of Microsporidia, Amber Lynn Mathews Jan 2010

Comparative Studies Of Innate Host Defense Mechanisms Against Virulent And Avirulent Species Of Microsporidia, Amber Lynn Mathews

LSU Master's Theses

Microsporidia are ubiquitous, obligate intracellular eukaryotes that cause chronic diarrhea and disseminated diseases in humans, especially in immunocompromised individuals. Macrophages, cellular components of the innate immune system, are believed to be the source of dissemination of this pathogen throughout the body. Little is known about the innate immune response to microsporidia. Macrophages are a source of interleukin (IL)-12 and IL-23 and play an essential role in the link between innate and adaptive immunity. The focus of this thesis is the investigation of the p38 mitogen-activated protein kinase (MAPK) signaling mechanisms and IL-12 and IL-23 production regulated by Toll-like receptor (TLR) …

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Influences On Public Support For Green Infrastructure: An Examination Of Urban Wetland Restoration In Post-Katrina New Orleans, Lynette C. Overholser Jan 2010

Influences On Public Support For Green Infrastructure: An Examination Of Urban Wetland Restoration In Post-Katrina New Orleans, Lynette C. Overholser

LSU Master's Theses

The research examines patterns of likely support for urban wetland restoration in the Greater New Orleans area. Through multi-variate statistical analysis of responses derived from an original survey of homeowners in New Orleans, key factors are identified that explain variation in residents’ willingness to accept such areas and their perceptions of ecological benefits associated with a theoretical wetlands restoration design for the Gentilly area. Further, the analysis determines the extent to which direct experience with Hurricane Katrina may influence public support for this and other green infrastructure projects. The results of the data collected show that many people in New …

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Estuarine Phytoplankton Response To Annual And Manipulated River Inputs, Jessica Czubakowski Jan 2010

Estuarine Phytoplankton Response To Annual And Manipulated River Inputs, Jessica Czubakowski

LSU Master's Theses

River water entering estuaries affects the physical and chemical environment at irregular intervals creating a highly dynamic aquatic habitat. Phytoplankton are important primary producers in estuaries that respond quickly to their changing environment. Since 1991, Breton Sound estuary in southeast Louisiana has been directly influenced by Mississippi River water through the Caernarvon Freshwater Diversion structure. Over a 12 month period, the phytoplankton response was examined, in terms of biomass, abundance, community composition and potential phycotoxin production to seasonal changes in river input into the estuary. Within this 12 month period, a short pulse study was also carried out to examine …

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Copper Oxide Wire Particles In Feed Pellets For Controlling Gastrointestinal Nematode Infection In Ewes And Lambs, Sarah Tammy Nicole Orlik Jan 2010

Copper Oxide Wire Particles In Feed Pellets For Controlling Gastrointestinal Nematode Infection In Ewes And Lambs, Sarah Tammy Nicole Orlik

LSU Master's Theses

Gastrointestinal nematode parasites cause extensive damage to small ruminants, and Haemonchus contortus is a major concern to production. In the past, small ruminants were dewormed at regular intervals and control methods were based primarily on the use of anthelmintics. At present, anthelmintic resistance has been reported worldwide and has developed into a serious problem for small ruminant management programs. In view of this, alternate control methods are needed. One alternative method is the use of copper oxide wire particles (COWP). Three independent trials were conducted during Spring, Summer, and Fall of 2008. Two trials evaluated the effect of COWP in …

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Understanding The Use Of Barrier Islands As Nesting Habitat For Louisiana Birds Of Concern, Cecilia Marie Leumas Jan 2010

Understanding The Use Of Barrier Islands As Nesting Habitat For Louisiana Birds Of Concern, Cecilia Marie Leumas

LSU Master's Theses

Colonial nesting seabirds are threatened by habitat loss and degradation, human disturbance, predation, and climate change. Several species of conservation concern concentrate high percentages of their total U.S. populations in Louisiana breeding colonies. We studied seabirds, including Royal Terns, Sandwich Terns, and Black Skimmers, nesting on Isles Dernieres barrier islands along the Gulf coast of Louisiana. Two of the four islands in this chain host extensive seabird colonies and two do not. We used an experimental approach to test the hypothesis that large terns and skimmers are prevented from nesting on Trinity Island, the largest of the Isles Dernieres, by …

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Nonpoint Source Pollution, Shaowei Sun, Zhiqiang Deng, Daniel Dianchen Gang Jan 2010

Nonpoint Source Pollution, Shaowei Sun, Zhiqiang Deng, Daniel Dianchen Gang

Faculty Publications

This article presents a comprehensive review of research advances in 2009 on nonpoint source water pollution caused by urban stormwater, highway stormwater, agricultural runoff, and atmospheric deposition. Modeling progresses in total maximum daily load calculations for nonpoint source pollution are also reviewed. Various low impact development technologies and best management practices for mitigating nonpoint source pollution and their socioeconomic impacts are assessed. Copyright © 2010 Water Environment Federation.

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Air Quality During Demolition And Recovery Activities In Post-Katrina New Orleans, Raghunathan Ravikrishna, Han Woong Lee., Stephen Mbuligwe, K. T. Valsaraj, John H. Pardue Jan 2010

Air Quality During Demolition And Recovery Activities In Post-Katrina New Orleans, Raghunathan Ravikrishna, Han Woong Lee., Stephen Mbuligwe, K. T. Valsaraj, John H. Pardue

Faculty Publications

Air samples were collected during demolition and cleanup operations in the Lakeview district of New Orleans, Louisiana,USA, in late 2005 during the period immediately after Hurricane Katrina. Three different high-volume air samples were collected around waste collection areas that were created to temporarily hold the debris from the cleanup of residential properties in the area. Particular teconcentrations were elevated and included crystalline fibers associated with asbestos. Metal concentrations on particulate matter aesembled those measured in sediments deposited by floodwaters with the exception of B a, which was elevated at all three locations. The highest organic contaminant concentration measured on particulates …

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On The Thermodynamics Of Friction And Wear-A Review, M. Amiri, Michael M. Khonsari Jan 2010

On The Thermodynamics Of Friction And Wear-A Review, M. Amiri, Michael M. Khonsari

Faculty Publications

An extensive survey of the papers pertaining to the thermodynamic approach to tribosystems, particularly using the concept of entropy as a natural time base, is presented with a summary of the important contributions of leading researchers. © 2010 by the authors; licensee MDPI, Basel, Switzerland.

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14-3-3 Sigma Interacts With Liver X Receptor Beta, Emily Ann Jackson Jan 2010

14-3-3 Sigma Interacts With Liver X Receptor Beta, Emily Ann Jackson

LSU Master's Theses

Atherosclerosis is the leading cause of mortality in developed countries accounting for 50% of all deaths. Atherosclerosis develops when macrophages in the artery wall accumulate large amounts of cholesterol via uptake of oxidized low density lipoproteins (LDL), causing a negative effect on cholesterol metabolism. Thus, the development of atherosclerosis can be inhibited by increasing cholesterol efflux, which can be achieved by activating ATP binding cassette (ABC) transporters in macrophages. In particular, ABCA1 mediates reverse cholesterol transport to the liver via high density lipoproteins (HDL) and therefore is an attractive molecular target for raising HDL levels and protecting against atherosclerosis. ABCA1 …

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Attention Is Not Required To Maintain Feature Bindings In Visual Working Memory, Amanda Van Lamsweerde Jan 2010

Attention Is Not Required To Maintain Feature Bindings In Visual Working Memory, Amanda Van Lamsweerde

LSU Master's Theses

Attention plays an important role in the formation of accurate feature bindings. However, the role of attention in maintaining feature bindings is not as well established. Some research supports the theory that attention is needed to maintain feature bindings in visual working memory (VWM), while other research suggests that bindings remain intact after the withdrawal of attention. Experiment 1 of current study tested this hypothesis by replicating the findings that feature bindings are more difficult to remember than individual features in a whole report change detection task. Experiment 2 directly measured attention through eye tracking and manipulated whether a change …

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Effects Of Emulsion Coatings On The Internal Quality And Shelf Life Of Eggs, Damir Dennis Torrico Jan 2010

Effects Of Emulsion Coatings On The Internal Quality And Shelf Life Of Eggs, Damir Dennis Torrico

LSU Master's Theses

Mineral oil (MO) is currently used for coating eggs to preserve quality. Chitosan possesses inherent antimicrobial and film-forming properties. Chitosan coating (CH) is dried much faster than MO when applied on egg shell. Information on synergistic effects of MO:CH emulsion coatings on egg quality does not exist. We developed MO:CH emulsion coatings, and evaluated their effects on internal quality and shelf-life of eggs during storage. In the first study, MO, CH and three emulsions (MO:CH = 75:25, 50:50, and 25:75) were evaluated during 5 weeks at 25°C. Haugh unit (HU) and yolk index values decreased whereas weight loss increased during …

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An Economic Analysis Of Cover Crops In Corn-Dominated Production Systems, Sukirti Nepal Jan 2010

An Economic Analysis Of Cover Crops In Corn-Dominated Production Systems, Sukirti Nepal

LSU Master's Theses

A survey data by Singer et al. (2007) was used to study the factors affecting the adoption of cover crops by the producers at the Corn Belt area of the United States. Data was collected from four states: Illinois, Indiana, Iowa, and Minnesota. Two binomial logit models were used for the econometric analysis. The first logit model was used to observe the factors affecting the adoption of cover crops by the producers. The second logit model was used to analyze the factors affecting the adoption of cover crops by producers in recent years, specifically, in past five years. The result …

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Rapid Microwave-Assisted Acid Extraction Of Chromate Copper Arsenate (Cca)-Treated Southern Pine, Bin Yu Jan 2010

Rapid Microwave-Assisted Acid Extraction Of Chromate Copper Arsenate (Cca)-Treated Southern Pine, Bin Yu

LSU Master's Theses

Recovery of heavy metals from chromated copper arsenate (CCA) treated southern pine wood samples with three different dimension was investigated by recovery with acetic acid, oxalic acid and phosphoric acid in microwave reactor. Diluted phosphoric acid mixed with acetic acid was found to be very effective to remove copper, chromium, and arsenic from spent CCA-treated southern pine sawdust at a high temperature and in a short time. No single acid can totally recover all these three metals in one step in this method. Oxalic acid was effective in removing chromium and arsenic, and acetic acid was effective in removing copper …

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Applicability And Integration Of Plasma Sprayed Hydroxyapatite Coated Ao Cortical Bone Screws In Equine Bone, Timm Gudehus Jan 2010

Applicability And Integration Of Plasma Sprayed Hydroxyapatite Coated Ao Cortical Bone Screws In Equine Bone, Timm Gudehus

LSU Master's Theses

To compare insertion temperatures and torques of Hydroxyapatite (HA) coated and uncoated 5.5 mm AO cortical screws in equine third metatarsal bones (MTIII) in vitro, and to compare insertion and extraction torques of HA coated and uncoated screws after 4, 8, 12 and 16 weeks of healing in equine third metacarpal bones (MCIII) in vivo. No significant temperature differences were recorded in cadaveric bones for AO and HA coated screws. Insertion torques were significantly higher for HA coated implants compared to uncoated screws. In vivo, the AO screws lost 50% of their initial stability within 4 weeks of healing and …

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Carprofen-Induced Oxidative Stress In Mitochondria Of The Colonic Mucosa Of The Dog, Lynne A. Snow Jan 2010

Carprofen-Induced Oxidative Stress In Mitochondria Of The Colonic Mucosa Of The Dog, Lynne A. Snow

LSU Master's Theses

Objectives 1) To measure conductance and permeability of canine colonic mucosa exposed to increasing concentrations of carprofen. 2) To compare conductance and permeability of canine colonic mucosa exposed to carprofen or 2,4-dinitrophenol (DNP) and tempol blockade. Design In vitro randomized block design Animal 20 mixed breed dogs Methods Conductance, mannitol flux, and histology were evaluated in colonic mucosa mounted in Ussing chambers. Mucosa was first exposed to increasing concentrations of carprofen. Mucosa was then exposed to either carprofen (200 μg/ml) or DNP (0.25mM) +/- tempol (1mM) pretreatment. Conductance over time, mannitol fluxes, and frequency of histologic categories were analyzed for …

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Quantifying Tarnished Plant Bug, Lygus Lineolaris (Palisot De Beauvois), Resistance To Acephate In Louisiana, Josh T. Copes Jan 2010

Quantifying Tarnished Plant Bug, Lygus Lineolaris (Palisot De Beauvois), Resistance To Acephate In Louisiana, Josh T. Copes

LSU Master's Theses

The tarnished plant bug, Lygus lineolaris (Palisot de Beauvois), is one of the most yield- limiting insect pests attacking cotton in the Mid-Southern region of the U.S. This pest is almost exclusively managed with chemical control strategies. The organophosphate insecticide, acephate, has been one of the most important insecticides recommended to control tarnished plant bugs. In recent years, reports of unsatisfactory acephate performance have become common and actual field rates have been increased to improve control. The objective of this study was to survey acephate susceptibility in Louisiana populations of tarnished plant bug using laboratory bioassays and evaluate acephate efficacy …

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Effectiveness Of Forestry Best Management Practices In Minimizing Harvesting Impacts On Streamflow And Sediment Loading In Low-Gradient Headwaters Of The Gulf Coastal Plain, Kristopher Brown Jan 2010

Effectiveness Of Forestry Best Management Practices In Minimizing Harvesting Impacts On Streamflow And Sediment Loading In Low-Gradient Headwaters Of The Gulf Coastal Plain, Kristopher Brown

LSU Master's Theses

Few studies have examined the effectiveness of timber harvesting Best Management Practices (BMPs) in water quality protection of widely-spread, low-gradient, and highly intermittent headwaters on the Gulf Coastal Plain. Also, a spatial disparity exists between the plot-scale water quality benefits afforded by BMP implementation and the watershed-scale with which most watershed stewardship programs are managed. In this thesis research, paired-watershed and Before-After-Control-Impact (BACI) designs were utilized to quantify plot- and watershed-scale changes in streamflow, as well as baseflow and stormflow Total Suspended Sediment (TSS) concentration and yield for 27 months after clearcut harvesting with and without BMPs in a low-gradient, …

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Association Of Esterases In Resistance To Naled And Resmethrin In The Southern House Mosquito, Culex Quinquefasciatus, Jennifer R. Gordon Jan 2010

Association Of Esterases In Resistance To Naled And Resmethrin In The Southern House Mosquito, Culex Quinquefasciatus, Jennifer R. Gordon

LSU Master's Theses

The vector-competency and its affinity for humans make C. quinquefasciatus an important target of mosquito abatement programs. Whenever such control programs are implemented, protocols to monitor frequencies and mechanisms of resistance to the insecticides used are necessary to optimize the efficacy of the management strategy and to slow development of resistance to the insecticides used. In the current study, susceptibilities to the two adulticides used by EBRMARC (naled and resmethrin) were monitored using field-collected mosquitoes and a topical and contact bioassay, respectively. My hypothesis was that esterase-mediated enhanced metabolism conferred resistance to both insecticides in populations of C. quinquefasciatus from …

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Mixed-Race Ancestry And Its Impact On The Facial Reconstruction Process, Jermaine Carl Robinson Jan 2010

Mixed-Race Ancestry And Its Impact On The Facial Reconstruction Process, Jermaine Carl Robinson

LSU Master's Theses

Various facial reconstruction techniques are used by forensic artists to assist in the identification of human remains. In establishing the biological profile for completion of a facial reconstruction, often the most difficult yet most important determination to make is that of race and/or ancestry of the decedent. By purposefully creating a facial reconstruction of an unidentified presumed mixed-race female decedent, staying true to the tissue depth information arrived at as a result of this researcher’s tests to determine her race, this author plans to investigate if any biases arise among any potential parties involved in the forensic identification process. This …

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Cooking Times And Temperatures For Safe Consumption Of Louisiana Blue Crabs (Callinectes Sapidus), Nicole Watson Hazard Jan 2010

Cooking Times And Temperatures For Safe Consumption Of Louisiana Blue Crabs (Callinectes Sapidus), Nicole Watson Hazard

LSU Master's Theses

While all seafood has the potential of being associated with foodborne illness, Louisiana blue crabs (Callinectes sapidus) are exposed to Vibrio cholerae, Vibrio parahaemolyticus, Vibrio vulnificus, Listeria monocytogenes and Salmonella species in the estuarine habitat. This study was designed to determine the least amount of time and temperature needed to reduce or eliminate each of the aforementioned bacteria from a single Louisiana blue crab with either boiling or steaming heat treatments. Once the single crab heat treatment studies were completed, the bacteria that showed the greatest thermal resistance, Listeria monocytogenes, and the bacteria most associated with foodborne illness in Louisiana …

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Speciation Of Heavy Metals In Disturbed And Undisturbed Sediments From Atchafalaya Bay, Houma Navigation Canal, And Southwest Pass, Louisiana, Amanda Jo Zimmerman Jan 2010

Speciation Of Heavy Metals In Disturbed And Undisturbed Sediments From Atchafalaya Bay, Houma Navigation Canal, And Southwest Pass, Louisiana, Amanda Jo Zimmerman

LSU Master's Theses

In coastal Louisiana it is common to use dredge spoil to build marshland that has been lost due to a variety of factors. Under various conditions such as deposition in a drained oxygenated environment, metals in the spoil can become more bioavailable posing a threat to the ecosystem. This study compares metal availability in natural and dredged sediments to determine what changes occur in nature. Forty four samples from three locations, Atchafalaya Delta, Houma Navigation Canal, and Southwest Pass, were analyzed for 13 common elements with known or potentially harmful health effects; Al, As, Ba, Be, Cd, Cr, Co, Cu, …

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The Adoption Of Best Management Practices In The Louisiana Crawfish Industry, Narayan P. Nyaupane Jan 2010

The Adoption Of Best Management Practices In The Louisiana Crawfish Industry, Narayan P. Nyaupane

LSU Master's Theses

Agricultural production can have result in environmental deterioration in cases where proper management practices have not been implemented. Louisiana, one of the tropical states, has a significant agricultural base with more than 1,600 farmers raising crawfish. Large volumes of waste water containing environmental pollutants result significant environmental problem in the state. Voluntary adoption of a number of best management practices (BMPs) that are considered to be environmentally and economically beneficial is encouraged in Louisiana. The major objectives of this study are to investigate farmer adoption of 18 selected Natural Resources Conservation Service (NRCS) cost share eligible BMPs and the reasons …

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Evaluating Remote Setting Techniques For Oyster (Crassostrea Virginica) Seed Production In Louisiana, Victoria D. Ippolito Jan 2010

Evaluating Remote Setting Techniques For Oyster (Crassostrea Virginica) Seed Production In Louisiana, Victoria D. Ippolito

LSU Master's Theses

Research was conducted to implement remote setting technology for the commercial- scale production of oysters on alternative cultch material in Louisiana. Genetic research has created an enhanced oyster stock for commercial cultivation. Since the Louisiana oyster industry relies on natural seed production for product, they are unable to utilize these new advances and are never guaranteed a reliable source of oyster seed. Remote setting is one way of producing a consistent supply of genetically improved oysters. Cultch material for oyster settlement is a limiting resource. Several alternatives to clamshell have been explored. The objectives of this study are: (1) test …

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Investigating The Use Of Bioengineered Oyster Reefs As A Method Of Shoreline Protection And Carbon Storage, Daniel D. Dehon Jan 2010

Investigating The Use Of Bioengineered Oyster Reefs As A Method Of Shoreline Protection And Carbon Storage, Daniel D. Dehon

LSU Master's Theses

The Louisiana Gulf Coast is losing land at an alarming rate for a combination of reasons. At the same time carbon dioxide is accumulating in the atmosphere and the oceans by the increased burning of fossil fuels. Therefore, bioengineered oyster dominated artificial reefs have been developed in an effort to mitigate erosion while storing carbon in the oyster shells. These reefs support the growth of a native oyster species, Crassostrea virginica, which are considered ecological engineers and serve to improve water quality, protect coastal wetlands, capture and store carbon, and enhance the economy. Evaluation of test pieces showed the addition …

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Hepatotoxic Cyanobacterial Blooms In Louisiana's Estuaries: Analysis Of Risk To Blue Crab (Callinectes Sapidus) Following Exposure To Microcystins, Ana Cristina Garcia Jan 2010

Hepatotoxic Cyanobacterial Blooms In Louisiana's Estuaries: Analysis Of Risk To Blue Crab (Callinectes Sapidus) Following Exposure To Microcystins, Ana Cristina Garcia

LSU Master's Theses

The most common toxins detected following freshwater harmful algal blooms are microcystins, a group of hepatotoxins produced by cyanobacteria (e.g., Microcystis and Anabaena spp.). Preference for filter-feeding prey, including bivalves, makes the blue crab, Callinectes sapidus, vulnerable to microcystin contamination and makes the commercially important crab a potential vector of microcystins. I used a combination of field and laboratory studies to determine blue crab vulnerability to microcystin contamination and consequent impacts on crab physiology. Samples collected from a hyper-eutrophic freshwater lake, Lac des Allemands, Louisiana, were analyzed for cyanobacterial abundances and microcystins in surface water and blue crabs using light-microscopy …

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A Comparison Of Soil And Corn Kernel Aspergillus Flavus Populations: Evidence For Niche Specialization, Rebecca Ruth Sweany Jan 2010

A Comparison Of Soil And Corn Kernel Aspergillus Flavus Populations: Evidence For Niche Specialization, Rebecca Ruth Sweany

LSU Master's Theses

Aspergillus flavus is an opportunistic fungal pathogen that infects peanuts, cotton, corn and tree nuts. Aspergillus flavus is a major problem globally due to the production of acutely toxic and carcinogenic aflatoxins. Louisiana climatic conditions lead to annual threats of corn aflatoxin contamination. The purpose of this study was to determine the specific ability of different strains of A. flavus to infect corn. Five soil samples and 10 corn ears were collected from each of seven corn fields throughout Louisiana. In addition, Francis Deville of Monsanto Company collected 7, 6, 2, and 4 soil samples and corn ears from four …

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Dress, Dialogue, And Gender In The Mary Tyler Moore Show From 1970-1977, Ashley Hayes Jan 2010

Dress, Dialogue, And Gender In The Mary Tyler Moore Show From 1970-1977, Ashley Hayes

LSU Master's Theses

Hayes, Ashley, B.S., Western Kentucky University, 2007. Master of Science, Fall Commencement, 2010. Major: Human Ecology Dress, Dialogue, and Gender in The Mary Tyler Moore Show from 1970-1977 Thesis directed by Jenna Tedrick Kuttruff, Professor Pages in thesis: 78 Words in abstract: 303 ABSTRACT The Mary Tyler Moore Show has been recognized as the first television program to feature a single career oriented female, the lead character Mary Richards. Many aspects of the show have been researched, including whether Mary Richards could be considered a true feminist role model. The show, which aired from 1970-1977, is important as it reflects …

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Western Interpretation Of The Other: How The Perpetuation Of Negative Stereotypes Against Blacks Have Shaped Our Culture, Katrina M. Andry Jan 2010

Western Interpretation Of The Other: How The Perpetuation Of Negative Stereotypes Against Blacks Have Shaped Our Culture, Katrina M. Andry

LSU Master's Theses

This thesis examines the history and nature of stereotypes propagated against blacks from the African Exploration to present day. Therefore by understanding the nature of these stereotypes one can better understand the consequences they’ve had on the black community and they’ve helped to maintain racism in America. This thesis further investigates the media’s role in maintaining racist attitudes towards blacks and how separating people in categories ranking from superior which consequentially breeds inferiority is advantageous to the majority rule in America. In conclusion the problem presented in this thesis has no concrete solution other than the viewer’s perspective after engaging …

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Eptc In Sugarcane (Saccharum Spp. Hybrids): Incorporation Methods, Weed Control, And Crop Tolerance, José Rodolfo Mite Cáceres Jan 2010

Eptc In Sugarcane (Saccharum Spp. Hybrids): Incorporation Methods, Weed Control, And Crop Tolerance, José Rodolfo Mite Cáceres

LSU Master's Theses

Research conducted over two years evaluated EPTC at 2.0, 2.9, 3.9, and 4.9 kg ai/ha incorporated on pre-formed sugarcane beds using a Lilliston® rolling cultivator and a hipper/bedder. Averaged across EPTC rates 30 days after application, bermudagrass was controlled 62% when incorporated with a rolling cultivator compared with 43% for the hipper/bedder. For johnsongrass and purple nutsedge, incorporation implements were equally effective and control with EPTC 30 days after application averaged 49 and 30%, respectively. Averaged across incorporation methods, control of all weeds 30 days after EPTC application was maximized at 3.9 kg/ha, but control was no greater than when …

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