Collaborative WHO xylitol field studies in Hungary II. General background and control of the dietary regimen

AbstractRice with enhanced tolerance to herbicides that inhibit acetyl coA carboxylase (ACCase) allows POST application of quizalofop, an ACCase-inhibiting herbicide. Two concurrent field studies were conducted in 2017 and 2018 near Stoneville, MS, to evaluate control of grass (Grass Study) and broadleaf (Broadleaf Study) weeds with sequential applications of quizalofop alone and in mixtures with auxinic herbicides applied in the first or second application. Sequential treatments of quizalofop were applied at 119 g ai ha−1 alone and in mixtures with labeled rates of auxinic herbicides to rice at the two- to three-leaf (EPOST) or four-leaf to one-tiller (LPOST) growth stages. In the Grass Study, no differences in rice injury or control of volunteer rice (‘CL151’ and ‘Rex’) were detected 14 and 28 d after last application (DA-LPOST). Barnyardgrass control at 14 and 28 DA-LPOST with quizalofop applied alone or with auxinic herbicides EPOST was ≥93% for all auxinic herbicide treatments except penoxsulam plus triclopyr. Barnyardgrass control was ≥96% with quizalofop applied alone and with auxinic herbicides LPOST. In the Broadleaf Study, quizalofop plus florpyrauxifen-benzyl controlled more Palmer amaranth 14 DA-LPOST than other mixtures with auxinic herbicides, and control with this treatment was greater EPOST compared with LPOST. Hemp sesbania control 14 DA-LPOST was ≤90% with quizalofop plus quinclorac LPOST, orthosulfamuron plus quinclorac LPOST, and triclopyr EPOST or LPOST. All mixtures except quinclorac and orthosulfamuron plus quinclorac LPOST controlled ivyleaf morningglory ≥91% 14 DA-LPOST. Florpyrauxifen-benzyl or triclopyr were required for volunteer soybean control >63% 14 DA-LPOST. To optimize barnyardgrass control and rice yield, penoxsulam plus triclopyr and orthosulfamuron plus quinclorac should not be mixed with quizalofop. Quizalofop mixtures with auxinic herbicides are safe and effective for controlling barnyardgrass, volunteer rice, and broadleaf weeds in ACCase-resistant rice, and the choice of herbicide mixture could be adjusted based on weed spectrum in the treated field.

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Efficacy of Silver Dihydrogen Citrate and Steam Vapor against a Human Norovirus Surrogate, Feline Calicivirus, in Suspension, on Glass, and on Carpet

Applied and Environmental Microbiology ◽

10.1128/aem.00233-18 ◽

2018 ◽

Vol 84 (12) ◽

Cited By ~ 4

Author(s):

David Buckley ◽

Muthu Dharmasena ◽

Angela Fraser ◽

Charles Pettigrew ◽

Jeffery Anderson ◽

...

Keyword(s):

Prevention And Control ◽

Field Studies ◽

Feline Calicivirus ◽

Human Norovirus ◽

Disease Symptoms ◽

Hard Surface ◽

Color Changes ◽

The Government ◽

And Control ◽

A Current

ABSTRACTCarpets and other soft surfaces have been associated with prolonged and reoccurring human norovirus (HuNoV) outbreaks. Environmental hygiene programs are important to prevent and control HuNoV outbreaks. Despite our knowledge of HuNoV transmission via soft surfaces, no commercially available disinfectants have been evaluated on carpets. Our aim was to adapt a current standardized method for virucidal testing by assessing two disinfection technologies, silver dihydrogen citrate (SDC) and steam vapor, against one HuNoV surrogate, feline calicivirus (FCV), on wool and nylon carpets. First, we evaluated the effect of both technologies on the appearance of carpet. Next, we evaluated the efficacy of SDC in suspension and the efficacy of SDC and steam vapor against FCV on a glass surface, each with and without serum. Lastly, we tested both technologies on two types of carpet, wool and nylon. Both carpets exhibited no obvious color changes; however, SDC treatments left a residue while steam vapor left minor abrasions to fibers. SDC in suspension and on glass reduced FCV by 4.65 log10and >4.66 log10PFU, respectively, but demonstrated reduced efficacy in the presence of serum. However, SDC was only efficacious against FCV on nylon (3.62-log10PFU reduction) and not wool (1.82-log10PFU reduction). Steam vapor reduced FCV by >4.93 log10PFU on glass in 10 s and >3.68 log10PFU on wool and nylon carpet carriers in 90 s. There was a limited reduction of FCV RNA under both treatments compared to that of infectivity assays, but RNA reductions were higher in samples that contained serum.IMPORTANCEHuman noroviruses (HuNoV) account for ca. 20% of all diarrheal cases worldwide. Disease symptoms may include diarrhea and vomit, with both known to contribute to transmission. The prevention and control of HuNoV are difficult because they are environmentally resilient and resistant to many disinfectants. Several field studies have linked both hard and soft surfaces to HuNoV outbreaks. However, many disinfectants efficacious against HuNoV surrogates are recommended for hard surfaces, but no commercially available products have demonstrated efficacy against these surrogates on soft surfaces. Our research objectives were to evaluate liquid and steam-based technologies in suspension and on hard surface carriers in addition to adapting and testing a protocol for assessing the virucidal effects of disinfection technologies on carpet carriers. These results will inform both the government and industry regarding a standard method for evaluating the virucidal effects of disinfectants on carpet while demonstrating their efficacy relative to suspension and hard-surface tests.

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Herbicide selection to terminate grass, legume, and brassica cover crop species

Weed Technology ◽

10.1017/wet.2019.107 ◽

2019 ◽

Vol 34 (1) ◽

pp. 48-54

Author(s):

Kara B. Pittman ◽

Charles W. Cahoon ◽

Kevin W. Bamber ◽

Lucas S. Rector ◽

Michael L. Flessner

Keyword(s):

Active Ingredient ◽

Cover Crops ◽

Cover Crop ◽

Field Studies ◽

Weed Suppression ◽

Hairy Vetch ◽

Crop Species ◽

Rating Data ◽

Crimson Clover ◽

And Control

AbstractCover crops provide a number of agronomic benefits, including weed suppression, which is important as cases of herbicide resistance continue to rise. To effectively suppress weeds, high cover crop biomass is needed, which necessitates later termination timing. Cover crop termination is important to mitigate potential planting issues and prevent surviving cover crop competition with cash crops. Field studies were conducted in Virginia to determine the most effective herbicide options alone or combined with glyphosate or paraquat to terminate a range of cover crop species. Results revealed that grass cover crop species were controlled (94% to 98%) by glyphosate alone 4 wk after application (WAA). Overall, legume species varied in response to the single active-ingredient treatments, and control increased with the addition of glyphosate or paraquat. Mixes with glyphosate provided better control of crimson clover and hairy vetch by 7% to 8% compared with mixes containing paraquat 4 WAA. Mix partner did not influence control of Austrian winter pea. No treatment adequately controlled rapeseed in this study, with a maximum of 58% control observed with single active-ingredient treatments and 62% control with mixes. Height reduction for all cover crop species supports visible rating data. Rapeseed should be terminated when smaller, which could negate weed suppressive benefits from this cover crop species. Growers should consider herbicide selection and termination timing in their cover crop plan to ensure effective termination.

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Herbicide-Resistant Canola (Brassica napus) Response and Weed Control with Postemergence Herbicides

Weed Technology ◽

10.1614/wt-05-061r.1 ◽

2006 ◽

Vol 20 (3) ◽

pp. 551-557 ◽

Cited By ~ 7

Author(s):

Timothy L. Grey ◽

Paul L. Raymer ◽

David C. Bridges

Keyword(s):

Weed Control ◽

Field Studies ◽

Italian Ryegrass ◽

Wild Radish ◽

Application Timing ◽

Herbicide Resistant ◽

Naturally Occurring ◽

And Control ◽

Postemergence Herbicides ◽

Significant Injury

Field studies were conducted to evaluate weed control in herbicide-resistant canola in Georgia. The resistant canola cultivars and respective herbicides were ‘Pioneer 45A76’ and imazamox, ‘Hyola 357RR’ and glyphosate, and ‘2573 Invigor’ and glufosinate. Weed seed of Italian ryegrass and wild radish were sown simultaneously in October with canola and control of these species was evaluated along with other naturally occurring weeds. Herbicide treatments for the respective herbicide-resistant canola cultivar were imazamox at 0.035 and 0.071 kg ai/ha, glyphosate at 0.84 and 1.64 kg ae/ha, and glufosinate at 0.5 and 1.0 kg ai/ha. Herbicides were applied at one– two-leaf (LF) and three–four-LF canola stages. There was no significant injury to any canola cultivar as a result of herbicide rate or timing of application. By midseason (February), imazamox effectively controlled wild radish, henbit, and shepherd's-purse at both rates and at both timings. When applied to three–four-LF canola, the higher rates of glyphosate and glufosinate were required to provide 75% or greater control of Italian ryegrass, wild garlic, and henbit. Glufosinate did not adequately control wild radish at either rate or application timing. Greenhouse experiments provided similar results.

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Growth, Reproductive Potential, and Control Strategies for Deeproot Sedge (Cyperus entrerianus)

Weed Technology ◽

10.1614/wt-d-10-00130.1 ◽

2012 ◽

Vol 26 (1) ◽

pp. 122-129 ◽

Cited By ~ 1

Author(s):

Charles T. Bryson ◽

Richard Carter

Keyword(s):

Growth Rate ◽

Field Study ◽

Control Strategies ◽

Reproductive Potential ◽

Field Studies ◽

Growth Chamber ◽

Chamber Studies ◽

Growth Chamber Studies ◽

And Control ◽

Achene Production

Greenhouse, growth chamber, and field studies were conducted at Stoneville, MS, in 2000 to 2008, to determine the growth rate, reproductive and overwintering potential, and control of deeproot sedge. In growth chamber studies, deeproot sedge growth rate (ht) and plant dry wt were greatest at 25/35 C (night/day temperatures), when compared with regimes of 5/15, 15/25, and 20/30 C. Based on the average number of scales (fruiting sites per spikelet), spikelets per inflorescence, and culms per plant, deeproot sedge reproductive potential was 2.6-, 6.2-, and 17.4-fold greater than Surinam, green, and knob sedges, respectively. A single deeproot sedge plant produced an average of 85,500 achenes annually. Mowing at 15-cm ht weekly prevented achene production but did not kill deeproot sedge plants. The average number of inflorescences produced on mowed plants was 1.2 to 4 times greater in 2- and 1-yr-old deeproot sedge plants, respectively, when compared with unmowed plants. Mature deeproot sedge achenes were produced between monthly mowings. In a 3-yr field study, glyphosate, glufosinate, hexazinone, and MSMA provided more than 85% control of deeproot sedge, and above the soil, live deeproot sedge plant dry wt was reduced by 50, 64, 68, 72, 86, and 93% by dicamba, halosulfuron-methyl, MSMA, hexazinone, glufosinate, and glyphosate, respectively. All (100%) deeproot sedge plants 1 yr old or older overwintered at Stoneville, MS, at 33°N latitude.

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About New Public Management Practices in Russian Universities (on Results of Field Studies)

Upravlenie ◽

10.12737/13339 ◽

2015 ◽

Vol 3 (3) ◽

pp. 61-67

Author(s):

Ломовицкая ◽

V. Lomovitskaya ◽

Хватова ◽

T. Khvatova ◽

Душина ◽

...

Keyword(s):

Higher Education ◽

Decision Making ◽

Public Management ◽

Management Practices ◽

New Public Management ◽

Field Studies ◽

New Public ◽

Control Department ◽

And Control ◽

Russian Universities

New public management practices in prestigious universities are researched in this paper. Based on the field study — higher-education teaching personnel (HETP) interrogation — problem areas related to university managerialism policy have been revealed. It has been shown, that the administrative machine and control department extension, as well as low level of professorship involvement in decision-making destroy the academic autonomy and create a latent conflict between managers and HETP.

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HOST SELECTION BY THE FIR ENGRAVER, SCOLYTUS VENTRALIS (COLEOPTERA: SCOLYTIDAE): PRELIMINARY FIELD STUDIES

The Canadian Entomologist ◽

10.4039/ent1031717-12 ◽

1971 ◽

Vol 103 (12) ◽

pp. 1717-1725 ◽

Cited By ~ 4

Author(s):

George T. Ferrell

Keyword(s):

Air Temperature ◽

Host Selection ◽

Sex Ratios ◽

Field Studies ◽

Flight Activity ◽

Host Trees ◽

Visitation Rates ◽

White Fir ◽

Early Afternoon ◽

And Control

AbstractDaily emergence of Scolytus ventralis Lec. from infested white fir bolts was highest in early afternoon (1200–1600 hours, P.D.S.T.) and limited to periods when air temperature exceeded 21 °C. More females than males emerged each day; the ratio in the total emergence was 1.9:1 and as high as 2.8:1 on warmest days. Flight occurred from mid-July to mid-September, with peak flight in mid-August. The intensity of flight activity was positively associated with varying temperatures above 24 °C (threshold).Visitation rates on lower boles of white firs were 10 times higher than those on Jeffrey pines. Two to three times as many beetles were trapped near girdled or severed white firs as about uninjured firs. Severed trees under attack by S. ventralis attracted three to seven times as many beetles as uninjured firs. When attack density reached 10 to 13 mines per sq. ft, the large number of beetles attracted in flight did not initiate mines in the trees already attacked but attacked surrounding host trees. Sex ratios of beetles trapped at experimental and control trees did not differ from that at emergence.

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The effect of potassium carbonate solution on the drying of lucerne: 2. Field studies

The Journal of Agricultural Science ◽

10.1017/s0021859600059931 ◽

1978 ◽

Vol 91 (3) ◽

pp. 557-561 ◽

Cited By ~ 23

Author(s):

J. N. Tullberg ◽

D. J. Minson

Keyword(s):

Potassium Carbonate ◽

Dry Matter ◽

Field Studies ◽

Carbonate Solution ◽

Field Exposure ◽

Moisture Contents ◽

Application Rates ◽

Drying Rates ◽

And Control ◽

Potassium Carbonate Solution

SummaryIn two field studies it was found that lucerne hay swaths sprayed with 3000 1/ha of 2% (w/w) aqueous potassium carbonate solution after cutting dried more rapidly than mechanically conditioned or control swaths; the ratio of drying rates being 2·17:1·43:1·00 respectively. Hay yields were increased in one of the two studies by the use of potassium carbonate.The effect of different application rates was studied in a third trial using 200, 500 and 875 1/ha potassium carbonate solution, compared with mechanically conditioned and control swaths. After only 29 h of field exposure all swaths treated with potassium carbonate had dried to moisture contents below that required for baling (moisture: dry matter ratio < 0·3).

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Rice (Oryza sativa) Response and Annual Grass Control with Graminicides

Weed Technology ◽

10.1614/wt-05-153r.1 ◽

2006 ◽

Vol 20 (3) ◽

pp. 738-744 ◽

Cited By ~ 7

Author(s):

Nathan W. Buehring ◽

Ronald E. Talbert ◽

Ford L. Baldwin

Keyword(s):

Oryza Sativa ◽

Field Studies ◽

Effective Control ◽

Annual Grass ◽

Single Application ◽

Natural Infestation ◽

And Control

Field studies were conducted to evaluate rice injury and control of propanil-resistant and -susceptible (natural infestation) barnyardgrass, broadleaf signalgrass, and Amazon sprangletop with BAS 625, cyhalofop, and fenoxaprop plus the safener isoxadifen in rice. BAS 625 at 100 g ai/ha applied to two- to three-leaf rice resulted in 19 to 72% injury in three of four experiments. Fenoxaprop plus isoxadifen at 90 + 98 g ai/ha injured rice 11 to 31%, and cyhalofop at 280 g ai/ha consistently resulted in minimal rice injury. The most effective control (84 to 99%) of propanil-resistant and propanil-susceptible barnyardgrass across all experiments was achieved with sequential applications of the BAS 625 at 75 and 100 g ai/ha, cyhalofop at 210 and 280 g ai/ha, and fenoxaprop plus isoxadifen at 68 + 74 and 90 + 98 g ai/ha. When the graminicides were applied to four- to six-leaf rice (one tiller), propanil-resistant and propanil-susceptible barnyardgrass control was generally very poor. Fenoxaprop plus isoxadifen controlled broadleaf signalgrass 91 to 100%, even when applied once to four- to six-leaf rice. BAS 625 at 75 and 100 g ai/ha and cyhalofop at 210 and 280 g ai/ha applied sequentially provided consistent broadleaf signalgrass control (≥98%). Amazon sprangletop control was good (85 to 99%) with fenoxaprop plus isoxadifen at 45 + 49, 68 + 74, and 90 + 98 g ai/ha (applied in a single application or sequentially), BAS 625 at 100 g ai/ha applied to two- to three-leaf and four- to six-leaf rice or 50, 75, and 100 g ai/ha applied sequentially, and cyhalofop at 140, 210, and 280 g ai/ha applied to two- to three-leaf rice or sequentially.

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Revisiting Radio Tuning: A Secondary Analysis Comparing Glance Behavior Across Five Vehicles

Proceedings of the Human Factors and Ergonomics Society Annual Meeting ◽

10.1177/1541931213601961 ◽

2017 ◽

Vol 61 (1) ◽

pp. 1924-1928 ◽

Cited By ~ 1

Author(s):

Thomas McWilliams ◽

Joonbum Lee ◽

Bruce Mehler ◽

Bryan Reimer

Keyword(s):

Completion Time ◽

Secondary Analysis ◽

Field Studies ◽

Task Completion ◽

Task Completion Time ◽

Driving Conditions ◽

And Control

Visual-manual demand placed on drivers through interactions with operational functions, embedded telematics, infotainment systems, and nomadic technologies has raised concerns associated with diverting attention from the roadway. This analysis draws on data from field studies of five different infotainment systems representing a range of screen placements and control characteristics that diverge in significant ways from the relatively standard car radio layout of previous generations. Participants performed a set of classic visual-manual radio tuning tasks under highway driving conditions. There were significant differences in task completion time, number of off-road glances, mean single off-road glance duration, and total off-road glance time across vehicles. These results highlight that the range of configurations appearing in modern infotainment systems have changed the extent to which they can be used in the classic radio tuning task to provide a standard demand benchmark.

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