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Dissertations / Theses on the topic 'Herbicide combination'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

Coles, Joanna. "Efficacy of Herbicide Combination on Burley and Dark-Air Cured Tobacco." TopSCHOLAR®, 2003. http://digitalcommons.wku.edu/theses/586.

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The efficacy of herbicide combination on burley and dark air-cured tobacco Nictotiana tabacum were tested in field research plots in the summer of 2000 at Western Kentucky University's Agricultural Research and Education Complex. The randomized complete block design contained six treatments replicated three times in each of the two experiments (burley and dark air-cured tobacco). Transplants (cv. 'TN 97' and cv. 'KY 160') were established on June 2, 2000 in a conventionally tilled Pembroke silt loam soil with a pH of 6.5 and organic matter content of 12 g/kg. Herbicide treatments were applied

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2

Somireddy, Upender Reddy. "Effect of Herbicide-Organic Mulch Combinations on Weed Control and Herbicide Persistence." The Ohio State University, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=osu1325255792.

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3

Umeda, K., and D. MacNeil. "Preemergence Herbicide Combinations for Onion Weed Control." College of Agriculture, University of Arizona (Tucson, AZ), 1999. http://hdl.handle.net/10150/219959.

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Most herbicides applied alone preemergence (PREE) caused minimal crop injury (<10%) when furrow irrigated. Pendimethalin (Prowl) applied at 0.5 lb AI/A plus bensulide (Prefar) at 6.0 lb AI/A under sprinkler irrigation in Tolleson caused crop injury that was highly unacceptable and the crop stand was severely reduced. Onion yields were significantly reduced for the Prowl plus Prefar treatments. Prowl at 0.25 or 0.5 lb AI/A alone provided very good (>90%) weed control of all weeds. Combination treatments of Prowl plus other herbicides provided very good weed control but did not offer enhanced co

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4

Whaley, Cory Miller. "Characterization of Acetolactate Synthase-Inhibiting Herbicide-Resistant Smooth Pigweed and Corn Weed Management Programs Utilizing Mesotrione in Combinations with Other Herbicides." Diss., Virginia Tech, 2005. http://hdl.handle.net/10919/26341.

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Repeated use of acetolactate synthase (ALS)-inhibiting herbicides in recent years has resulted in the selection of 89 weed species resistant to these herbicides. One management strategy that can eliminate or slow the development of resistance is applying mixtures of herbicides with different modes of action. This research involved the characterization of ALS-inhibiting herbicide-resistant smooth pigweed (<i>Amaranthus hybridus</i> L.), as well as investigations on weed management programs in corn (<i>Zea mays</i> L.) utilizing mesotrione, a triketone, in mixtures with other herbicides. ALS-

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5

Umeda, Kai. "Preemergence Herbicide Combinations for Weed Control in Cantaloupes." College of Agriculture and Life Sciences, University of Arizona (Tucson, AZ), 2003. http://hdl.handle.net/10150/214990.

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Sandea, Valor, and Outlook offered promising results in different combinations applied preemergence (PREE). The combination of Prefar plus Sandea gave 95% control of pigweed and continued to control lambsquarters at 90% late in the season. Prefar combined with Valor gave acceptable pigweed control and lambsquarters were controlled at acceptable levels at 88 and 86%, respectively. Outlook combined with Valor was safe and gave good early pigweed control and later control of lambsquarters. Strategy alone at either 1.0 or 2.0 pt/A did not provide acceptable levels of weed control and no significan

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6

Umeda, K., G. Gal, and B. Strickland. "Preemergence Herbicide Combinations for Onion Weed Control Study." College of Agriculture, University of Arizona (Tucson, AZ), 1999. http://hdl.handle.net/10150/221674.

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DCPA (Dacthal®) at 9.0 lb AI /A, the commercial standard herbicide, slightly reduced the number of plants and shortened the plant height compared to the untreated check. Preemergence (PREE) herbicide treatments that caused injury as height reduction similar to Dacthal included pendimethalin (Prowl®), propachlor (Ramrod®), metolachlor (Dual®), dimethenamid (Frontier®), ethofumesate (Nortron®), and benefin (Balan®). Visual observations did not indicate significant stand reduction or crop injury compared to plant counts. Treatments that caused minimal visible crop injury (<10 %) were Ramrod, Bala

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7

Umeda, Kai. "Preemergence and Postemergence Herbicide Combinations for Weed Control in Melons." College of Agriculture and Life Sciences, University of Arizona (Tucson, AZ), 2004. http://hdl.handle.net/10150/215238.

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Sandea at 0.05 lb ai/A tank-mixed with Matrix at 0.02 lb ai/A and applied POST following Prefar applied preemergence on cantaloupes gave very good control of pigweeds, lambsquarters, purple nutsedge, and junglerice. Melon injury was just acceptable at 15%. The tank-mix treatment applied POST was similarly effective on the pigweeds, lambsquarters, and nutsedge but grass weed control decreased slightly and melon injury increased when following preemergence herbicide treatments of Dual Magnum, Outlook, or Chateau. Single or multiple POST applications of Sandea alone were not effective against pig

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8

Kammler, Kate J. "Postemergence herbicide and adjuvant combinations for weed control in pumpkin production /." Available to subscribers only, 2006. http://proquest.umi.com/pqdweb?did=1136079401&sid=18&Fmt=2&clientId=1509&RQT=309&VName=PQD.

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9

Umeda, Kai, and Gabriel Towers. "Evaluation and Comparison of Spotlight* Herbicide Combinations for Khakiweed Control in Turf." College of Agriculture and Life Sciences, University of Arizona (Tucson, AZ), 2004. http://hdl.handle.net/10150/216533.

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The combination of Spotlight* at 1.0 pt/A plus Speedzone* at 4.0 pt/A gave 90% control of khakiweed at 14 days after treatment (DAT) and continued to offer acceptable control of 85% at 49 DAT. Acceptable control of 87 and 90% control was also observed at 14 DAT when Spotlight* was combined with Powerzone* or Speedzone*, respectively. The combinations of Spotlight* with Powerzone* or Trimec* were similar by marginally controlling khakiweed up to 21 DAT. Spotlight when combined with Turflon Ester* or Speedzone Southern* performed very similarly at all rating dates and did not offer acceptable kh

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10

Hustedde, Nicholas Victor. "Optimum® GAT® Concepts: Herbicide Combinations for Foliar and Residual Weed Control in Soybean and Corn." OpenSIUC, 2011. https://opensiuc.lib.siu.edu/theses/604.

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Field and greenhouse research was conducted in 2009 and 2010 on herbicide applications enabled by the integration of Optimum GAT crop traits providing for resistance to glyphosate and certain ALS-inhibiting herbicides. The herbicide concepts were evaluated for control of several winter and summer annual weed species, as well as the effect of the resulting weed control on grain yield of Optimum GAT soybean. The combination of chlorimuron + rimsulfuron did not provide sufficient efficacy on the winter annual grass species little barley and annual bluegrass. Factors contributing the sub-lethal ac

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11

Britenstine, Robert John. "PREEMERGENCE AND POSTEMERGENCE HERBICIDE COMBINATIONS FOR WEED CONTROL IN NO-TILLAGE PUMPKIN PRODUCTION." Available to subscribers only, 2009. http://proquest.umi.com/pqdweb?did=1967963321&sid=5&Fmt=2&clientId=1509&RQT=309&VName=PQD.

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12

Kelley, Tracy. "Efficacy, Phytotoxicity, and Cover Crop Response of Herbicide Combinations in Dark Fire Cured Tobacco." TopSCHOLAR®, 2000. http://digitalcommons.wku.edu/theses/724.

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Field studies were established during the summer of 1999 at the Agricultural Research and Education Complex of Western Kentucky University to evaluate efficacy, phytotoxicity, and cover crop response of herbicide combinations in dark fire cured tobacco. A randomized complete block design was used with nine treatments replicated three times. Hydroponic tobacco transplants (c.v. 'TND950') were established on May 20,1999 in a conventionally tilled system on a Pembroke silt loam (Mollic Palleudalf) with a pH of 5.8 and an organic matter content of 1.2%. The transplants were established at a popula

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13

Umeda, Kai. "Efficacy and Safety of Combinations of Preemergence and Postemergence Herbicides in Cantaloupes." College of Agriculture and Life Sciences, University of Arizona (Tucson, AZ), 2003. http://hdl.handle.net/10150/214974.

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Sandea at 0.03 lb AI/A combined with rimsulfuron at 0.02 lb AI/A gave exceptionally good control of prostrate pigweed and lambsquarters at 98% and 96%, respectively, when applied postemergence (POST) in cantaloupes. Sandea applied POST in a tank-mix with increasing rates of rimsulfuron showed marginally acceptable to unacceptable crop injury. All POST applications of Sandea following preemergence (PREE) herbicides or applied alone provided 90% or better control of lambsquarters. Sandea and Strategy gave unacceptable control of pigweed and lambsquarters at 60-70% relative to the standard, Prefa

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14

Adcock, Collin Wayne. "Combinations of selected sulfonylurea herbicides with S-Metolachlor for nutsedge control in tomatoes." Auburn, Ala., 2007. http://repo.lib.auburn.edu/2007%20Spring%20Theses/ADCOCK_COLLIN_2.pdf.

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15

Umeda, Kai. "Evaluation of New Preemergence Herbicides Alone and in Combinations for Weed Control in Melons." College of Agriculture and Life Sciences, University of Arizona (Tucson, AZ), 2002. http://hdl.handle.net/10150/214958.

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Azafenidin (Milestone®, Dupont) and flumioxazin (Valor®, Valent)) caused cantaloupe injury that was very marginal between acceptable (<15%) and unacceptable (>15%). Flufenacet (Bayer), isoxaben (Gallery, DowAgroSciences), and thifensulfuron (Harmony®, Dupont) at the rates tested caused severe crop injury. Isoxaben provided very good weed control (>90%), azafenidin provided acceptable control of only lambsquarters at 88% and less than acceptable (85%) control of pigweeds, purslane, and grasses, and flumioxazin at the higher rate of 0.05 lb AI/A tended to offer slightly better weed control than

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16

Farré, Olalla Ma José. "Combination of Advanced Oxidation Processes with biological treatment for the remediation of water polluted with herbicides." Doctoral thesis, Universitat Autònoma de Barcelona, 2007. http://hdl.handle.net/10803/3251.

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Els Processos Avançats d'Oxidació (PAOs) són tècniques de degradació química basades en la producció in situ del potent reactiu radical hidroxil. L'acoblament entre PAOs i sistemes biològics pel tractament d'aigua contaminada amb compostos biorecalcitrants és una alternativa útil als mètodes de gestió convencionals. El principal benefici d'aquests tractaments acoblats és la minimització del pretractament químic fins a generar intermedis més biodegradables. Subseqüentment, un tractament convencional d'aigües residuals, basat en la activitat de microorganismes, es pot utilitzar per eliminar com

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17

Moseley, Carroll. "Herbicide combinations for establishing no-till soybeans (Glycine max) with an emphasis on the use of chlorimuron." Diss., This resource online, 1990. http://scholar.lib.vt.edu/theses/available/etd-08252008-162019/.

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18

Armel, Gregory Russell. "Weed management in conventional, no-till, and transgenic corn with mesotrione combinations and other herbicides." Diss., Virginia Tech, 2002. http://hdl.handle.net/10919/27082.

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Weed management programs in corn typically include herbicides applied both preemergence (PRE) and postemergence (POST) for season-long weed control. Mesotrione is a new triketone herbicide registered for PRE and POST control of broadleaf weeds in corn. Triketone herbicides function through inhibition of the enzyme p-hydroxyphenylpyruvate dioxygenase. Mesotrione applied PRE did not adequately control common lambsquarters (Chenopodium album L.), smooth pigweed (Amaranthus hybridus L.), common ragweed (Ambrosia artemisiifolia L.), or morningglory species (Ipomoea spp.) in conventional tillage

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19

Mashburn, Terry. "Evaluation of Imazaquin, Imazethapyr & Postemergence Herbicide Combinations for Control of Johnsongrass (Sorghum Halepense) in Soybeans (Glycine Max)." TopSCHOLAR®, 1990. https://digitalcommons.wku.edu/theses/2583.

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Johnsongrass (Sorghum halepense) competition in soybeans (Glycine max) has adverse effects on soybean yields. Profitable soybean production in Kentucky and the Southeastern United States has depended upon good, cost effective johnsongrass control. Several herbicides have been developed to control johnsongrass in soybeans. Four of these recently developed compounds were imazaquin (2-[4,5-dihydro-4-methy1-4- (1-methyl-ethyl)-5-oxo-1H-imidazo1-2-y1]-3-quino1inecarboxy1ic acid), imazethapyr (+/-)-2-C4,5-dihydro-4-methy1-4-(1-methy. lethyl)-5-oxo-IH-imidazol-2-y1)-5-ethy1-3-pyridinecarboxylic acid,

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20

Vollmer, Jennifer Sue Landwehr. "Combination effect of ACP 2100, imazaquin and triclopyr on common dandelion and three Kentucky bluegrass turf types." Diss., Virginia Polytechnic Institute and State University, 1989. http://hdl.handle.net/10919/54802.

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The compatibility of ACP 2100, a member of the imidazolinone family (chemistry not released), imazaquin (2- [4,5-dihydro-4-methyl-4-(1-methylethyl)-5-oxo-1H̱-imidazol2- yl]-3-quinolinecarboxylic acid) and triclopyr {[(3,5,6-trichloro-2-pyridinyl)oxy]acetic acid} was investigated for use in a turf management program, including growth regulation and broadleaf weed control. Field and greenhouse results indicated an antagonistic interaction between triclopyr and imazaquin for control of common dandelion (<i>Taraxacum officinale</i> Weber in Wigger). Addition of imazaquin at 276 g ha⁻¹ to triclopyr

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21

Drost, Wiebke [Verfasser], Thomas [Akademischer Betreuer] Backhaus, and Juliane [Akademischer Betreuer] Filser. "The factor time in assessing ecotoxicity:Studies with Herbicides and Metals applied singly and in combination to Lemna minor in simple and complex exposure patterns / Wiebke Drost. Gutachter: Thomas Backhaus ; Juliane Filser. Betreuer: Thomas Backhaus." Bremen : Staats- und Universitätsbibliothek Bremen, 2011. http://d-nb.info/1072155834/34.

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