To see the other types of publications on this topic, follow the link: Spray application.

Journal articles on the topic 'Spray application'

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic 'Spray application.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

Gaskin, R. E., K. D. Steele, and G. S. Elliott. "Concentrated lowvolume aerial sprays to improve spray distribution in large avocado trees." New Zealand Plant Protection 64 (January 8, 2011): 107–11. http://dx.doi.org/10.30843/nzpp.2011.64.5970.

Full text
Abstract:
The avocado industry has comprehensive guidelines for groundbased spray application to avocado orchards but there are no current guidelines for aerial spray applications Helicopterapplied deposits from a dilute spray application (600 litres/ha) of copper on a commercial Hass avocado orchard (12 m tall trees) were compared with twotimes (300 litres/ha) and threetimes (200 litres/ha) concentrate sprays with addition of varying rates of the superspreader adjuvant DuWett Tartrazine dye was included as a deposit tracer Concentrate sprays with adjuvant addition consistently gave higher spray deposit
APA, Harvard, Vancouver, ISO, and other styles
2

Gaskin, R. E., D. W. Manktelow, S. J. Skinner, and G. S. Elliott. "Use of a superspreader adjuvant to reduce spray application volumes on avocados." New Zealand Plant Protection 57 (August 1, 2004): 266–70. http://dx.doi.org/10.30843/nzpp.2004.57.6905.

Full text
Abstract:
This study was undertaken to determine whether pesticide spray volumes on avocados could be substantially lowered with the use of a superspreader adjuvant and to identify an optimum spray volume and adjuvant rate to maximise spray retention Groundbased airblast applications of copper fungicide were made to 45 year old fruitbearing trees Spray retention was quantified on foliage and fruit at a range of canopy heights and positions Spray deposits on foliage were maintained or improved using reduced volume sprays (500700 litres/ha) incorporating the superspreader DuWett compared to the standard h
APA, Harvard, Vancouver, ISO, and other styles
3

Rosen*, Carl, Peter Bierman, Adriana Telias, Yizhen Shen, and Emily Hooverf. "Foliar Applied Strontium as a Tracer for Calcium Transport in Apple Trees." HortScience 39, no. 4 (2004): 853C—853. http://dx.doi.org/10.21273/hortsci.39.4.853c.

Full text
Abstract:
A field experiment was conducted at the Horticultural Research Center in Chanhassen, Minn. to help refine recommendations for use of calcium (Ca) sprays to reduce the incidence of bitter pit in `Honeycrisp' apple. Specific objectives were to: evaluate the amount of translocation from leaves to fruit using strontium (Sr) as a tracer for potential Ca movement, determine whether there are differences in translocation in early vs. later phases of fruit development, and evaluate the effect of an experimental adjuvant on spray efficacy. Seven treatments tested included the following: 1) Control (no
APA, Harvard, Vancouver, ISO, and other styles
4

Gaskin, R. E., D. W. L. Manktelow, and H. Pak. "Improving spray distribution and coverage on avocado trees in low volume concentrate sprays." New Zealand Plant Protection 61 (August 1, 2008): 147–52. http://dx.doi.org/10.30843/nzpp.2008.61.6798.

Full text
Abstract:
Avocado trees in New Zealand orchards are planted on squares spaced 714 m apart with tree heights of up to 14 m Large trees present considerable difficulties with regards to pesticide application A series of studies was undertaken on 68 m high trees to optimise formulation prescriptions for airblast application of copper sprays Treatments included standard (up to 3000 litres/ha) and low volume (6001000 litres/ha) concentrate spray applications applied with the addition of varying rates of an organosilicone superspreader adjuvant Spray deposits were measured on foliage in the inner and outer se
APA, Harvard, Vancouver, ISO, and other styles
5

Toivonen, Peter M. A., and Pascal Delaquis. "Low-volume Sprays to Treat Fresh-sliced Apples with Anti-browning Solution." HortTechnology 16, no. 2 (2006): 257–61. http://dx.doi.org/10.21273/horttech.16.2.0257.

Full text
Abstract:
Use of sprays to sanitize and treat apple (Malus ×domestica) slices helps to reduce the potential for cross-contamination that can occur when treatments are done in dip tanks. This research examined several factors that may affect the efficacy of spray treatments: 1) spray volume; 2) efficacy of spray application of anti-browning solution (ABS) compared with dipping; 3) effect of slice density during spraying; and 4) effect of the addition of an antimicrobial compound, vanillin, on microbiologically associated browning. Low-volume sprays (36-50 mL·kg-1 slices) of ABS gave maximal control of br
APA, Harvard, Vancouver, ISO, and other styles
6

Bennett, Katherine, Mary Vargo, Guido Schnabel, and James E. Faust. "Calcium Application Method Impacts Botrytis Blight Severity on Petunia Flowers." HortScience 55, no. 2 (2020): 192–95. http://dx.doi.org/10.21273/hortsci14419-19.

Full text
Abstract:
Two application methods of calcium (Ca), fertigation and spray, were investigated regarding their effects on Botrytis blight on petunia (Petunia ×hybrida) flowers. Plants were grown for 6 weeks with three nutrient solutions consisting of 0, 100, or 200 mg·L−1 Ca and weekly calcium chloride (CaCl2) sprays of 0, 750, or 1500 mg·L−1 Ca for a total of nine treatment combinations. Flowers were harvested, inoculated with Botrytis spores, placed in humidity chambers, and evaluated for Botrytis blight severity. Disease severity decreased by 57% and 70% when flowers were treated with Ca spray applicati
APA, Harvard, Vancouver, ISO, and other styles
7

Wagner, Robert G., and Michael W. Rogozynski. "Controlling Sprout Clumps of Bigleaf Maple with Herbicides and Manual Cutting." Western Journal of Applied Forestry 9, no. 4 (1994): 118–24. http://dx.doi.org/10.1093/wjaf/9.4.118.

Full text
Abstract:
Abstract Bigleaf maple (Acer macrophyllum) clumps were controlled using the herbicides glyphosate, imazapyr, metsulfuron methyl, triclopyr amine, triclopyr ester, and 2,4-DP + 2,4-D; by basal spray, thinline, foliage spray, and on cut surfaces; during early foliar, late foliar, and dormant periods on five sites across western Oregon and Washington. Three timings of manual cutting alone also were compared. Imazapyr foliage sprays, triclopyr ester thinline, dormant 3% triclopyr ester basal spray, late-foliar 2, 4-DP + 2,4-D basal spray, and manual cutting with triclopyr amine cut-surface applica
APA, Harvard, Vancouver, ISO, and other styles
8

Barrett, James E., Carolyn A. Bartuska, and Terril A. Nell. "Application Techniques Alter Uniconazole Efficacy on Chrysanthemums." HortScience 29, no. 8 (1994): 893–95. http://dx.doi.org/10.21273/hortsci.29.8.893.

Full text
Abstract:
Four experiments using container-grown Dendranthema ×grandiflorum (Ramat.) Kitamura `Nob Hill' or `Tara' were conducted to determine effects of application site and spray volume on uniconazole efficacy. Uniconazole applied only to mature leaves was less effective in controlling stem elongation than were stem applications, whole-plant sprays, or medium drenches. Spray volume altered efficacy more for uniconazole than for daminozide. Also, the effect of uniconazole spray volume was greater when the medium was not covered than when covered to prevent spray solution entering medium. Results from t
APA, Harvard, Vancouver, ISO, and other styles
9

Gaskin, R. E., D. W. Manktelow, and G. S. Elliott. "New adjuvant technology for pesticide use on wine grapes." New Zealand Plant Protection 55 (August 1, 2002): 154–58. http://dx.doi.org/10.30843/nzpp.2002.55.3885.

Full text
Abstract:
Wine grape growing is under increasing pressure to reduce pesticide use A project was undertaken to develop new adjuvant prescriptions to reduce spray volumes required throughout fullseason pesticide programmes in vineyards and to improve spray coverage and retention on foliage and grape bunches A preharvest field trial confirmed improved targeting of Chardonnay foliage and bunches with markedly lowered spray application volumes when a novel organosilicone adjuvant DuWett was included in the spray mix Application volumes of le;200 litres/ha maximised retention and distribution of pesticide spr
APA, Harvard, Vancouver, ISO, and other styles
10

Rogers, P. M., and W. R. Stevenson. "Weather-Based Fungicide Spray Programs for Control of Two Foliar Diseases on Carrot Cultivars Differing in Susceptibility." Plant Disease 90, no. 3 (2006): 358–64. http://dx.doi.org/10.1094/pd-90-0358.

Full text
Abstract:
Foliar diseases of carrot caused by Alternaria dauci and Cercospora carotae occur every year in Wisconsin, requiring repeated foliar fungicide applications to minimize defoliation and yield reduction. Improved timing of fungicide applications combined with the use of disease resistant cultivars offer growers a means to improve disease control with fewer fungicide inputs compared with the current strategy of weekly fungicide applications to a susceptible cultivar. Field experiments in 2002 to 2004 examined fungicide application schedules indicated by a disease forecasting model that calculated
APA, Harvard, Vancouver, ISO, and other styles
11

Hund, Jerry P. "Spray application processes." Metal Finishing 98, no. 6 (2000): 181–97. http://dx.doi.org/10.1016/s0026-0576(00)80411-0.

Full text
APA, Harvard, Vancouver, ISO, and other styles
12

Hund, Jerry P. "Spray application processes." Metal Finishing 108, no. 11-12 (2010): 133–49. http://dx.doi.org/10.1016/s0026-0576(10)80224-7.

Full text
APA, Harvard, Vancouver, ISO, and other styles
13

Hund, Jerry P. "Spray application processes." Metal Finishing 97, no. 5 (1999): 191–207. http://dx.doi.org/10.1016/s0026-0576(99)80780-6.

Full text
APA, Harvard, Vancouver, ISO, and other styles
14

Cramer, Christopher S., and Mark P. Bridgen. "017 GROWTH REGULATOR EFFECTS ON HEIGHT CONTROL OF POTTED MUSSAENDA QUEEN SIRIKIT." HortScience 29, no. 5 (1994): 430a—430. http://dx.doi.org/10.21273/hortsci.29.5.430a.

Full text
Abstract:
Mussaenda, a tropical ornamental shrub developed in the Philippines is being examined as a potential greenhouse potted crop in the United States. Showy sepals of white, picotee, pink or red and fragrant, yellow flowers make Mussaenda an attractive patted plans however, the profuse upright growth habit of some Mussaenda cultivars is undesirable for pot plant culture. With this in mind experiments were conducted to determine the effects of three growth regulators at two concentrations each, as well as the application method and the number of applications on Mussaenda plant height. Three growth r
APA, Harvard, Vancouver, ISO, and other styles
15

Braekman, Pascal, Dieter Foqué, Marie-Christine Van Labeke, Jan G. Pieters, and David Nuyttens. "Influence of Spray Application Technique on Spray Deposition in Greenhouse Ivy Pot Plants Grown on Hanging Shelves." HortScience 44, no. 7 (2009): 1921–27. http://dx.doi.org/10.21273/hortsci.44.7.1921.

Full text
Abstract:
As a result of the decreasing availability of authorized plant protection products, adequate pest control becomes more difficult in many ornamental crops and almost no information is available about the optimization of spray application techniques in ornamental crops. Yet, spray boom systems—instead of the still predominantly used spray guns—might improve crop protection management in greenhouses considerably. Application rate, nozzle type, and configuration will influence the spray deposition and, as such, its efficiency. In this study, spray deposition in ivy pot plants [Hedera algeriensis c
APA, Harvard, Vancouver, ISO, and other styles
16

Chatzidimopoulos, Michael, Fenia Lioliopoulou, Thomas Sotiropoulos, and Evangelos Vellios. "Efficient Control of Apple Scab with Targeted Spray Applications." Agronomy 10, no. 2 (2020): 217. http://dx.doi.org/10.3390/agronomy10020217.

Full text
Abstract:
For two consecutive growing seasons (2017 and 2018), three different fungicide spray programs, each with five sprays from unrelated chemical groups, were evaluated for their effectiveness against apple scab (causal agent: Venturia inaequalis) in an experimental trial in Greece. The targeted application programs consisted of five sprays with protective and systemic fungicides from unrelated chemical groups, in alternation. The applications were started at the pink bud stage (a copper-based fungicide had previously been applied at the green bud stage) and completed at the second fruit fall to ar
APA, Harvard, Vancouver, ISO, and other styles
17

Nansen, Christian, Gabriel Del Villar, Alexander Recalde, Elvis Alvarado, and Krishna Chennapragada. "Phone App to Perform Quality Control of Pesticide Spray Applications in Field Crops." Agriculture 11, no. 10 (2021): 916. http://dx.doi.org/10.3390/agriculture11100916.

Full text
Abstract:
It has been recognized for decades that low and inconsistent spray coverages of pesticide applications represent a major challenge to successful and sustainable crop protection. Deployment of water-sensitive spray cards combined with image analysis can provide valuable and quantitative insight into spray coverage. Herein we provide description of a novel and freely available smartphone app, “Smart Spray”, for both iOS and Android smart devices (iOS and Google app stores). More specifically, we provide a theoretical description of spray coverage, and we describe how Smart Spray and similar imag
APA, Harvard, Vancouver, ISO, and other styles
18

Caviness, Darlene M., Ronald E. Talbert, and Gerald L. Klingaman. "Chemigation and Spray Application of Herbicides on Container-Grown Ornamentals." Weed Technology 2, no. 4 (1988): 418–22. http://dx.doi.org/10.1017/s0890037x0003219x.

Full text
Abstract:
Metolachlor, oryzalin, and napropamide when chemigation-applied controlled large crabgrass more effectively than when spray applied in container-grown azalea, liriope, and Japanese holly. Oxadiazon and oxyfluorfen were equally effective as chemigation or spray applications. Azaleas were generally more susceptible to contact injury from sprays of oxadiazon and oxyfluorfen and large crabgrass interference than were holly and liriope.
APA, Harvard, Vancouver, ISO, and other styles
19

Wang, Shilin, Xue Li, Aijun Zeng, et al. "Effects of Adjuvants on Spraying Characteristics and Control Efficacy in Unmanned Aerial Application." Agriculture 12, no. 2 (2022): 138. http://dx.doi.org/10.3390/agriculture12020138.

Full text
Abstract:
Pesticide application by unmanned agricultural aerial vehicles (UAVs) has rapidly developed in China and other Asian counties. Currently, tank-mix spray adjuvants are usually added into pesticide solutions to reduce spray drift and facilitate droplet deposition and control efficacy. The currently used tank-mix adjuvants are all derived from conventional ground sprays, and their mechanisms of action in aerial applications are still unclear. In order to clarify the spraying characteristics and control efficacy of those adjuvants in aerial sprays, the performances of various types of tank-mix adj
APA, Harvard, Vancouver, ISO, and other styles
20

DeFrank*, Joe, and James J. K. Leary. "The Response of Potted Orchids to Sequential Postemergence Herbicide Applications in Hawaii." HortScience 39, no. 4 (2004): 844E—845. http://dx.doi.org/10.21273/hortsci.39.4.844e.

Full text
Abstract:
Two experiment were conducted in 1999 and 2000 to determine the response of orchid cultivars, grown as potted plants, to postemergence herbicides. In a film covered commercial nursery in Pahoa, four orchid cultivars were exposed to five sequential herbicide applications. The cultivars used were: Emma White (Dendrobium), Wildcat Blood Ruby, Volcano Queen (both Oncidiums), and SuFun Beauty (Vanda). The herbicides evaluated in this experiment were diuron and clopyralid applied at the anticipated (1×), 2×, and 4× use rate. Spray applications were made directly to crop foliage using a spray to wet
APA, Harvard, Vancouver, ISO, and other styles
21

Keinath, Anthony P. "Effect of Protectant Fungicide Application Schedules on Gummy Stem Blight Epidemics and Marketable Yield of Watermelon." Plant Disease 84, no. 3 (2000): 254–60. http://dx.doi.org/10.1094/pdis.2000.84.3.254.

Full text
Abstract:
The watermelon cultivar Royal Star was grown in fall 1996, spring and fall 1997, and spring 1998 and treated with 2.52 kg a.i./ha of the protectant fungicides mancozeb or chlorothalonil. Spray application schedules used in the experiments included two initiation times, sprays every 7, 10, or 14 days, and two termination times. Severity of gummy stem blight, caused by Didymella bryoniae, was high in fall 1996 and 1997, moderate in spring 1997, and low in spring 1998. In each experiment, fungicide applications reduced the area under the disease progress curve (AUDPC), percent leaf area diseased
APA, Harvard, Vancouver, ISO, and other styles
22

Banerjee, Barnali S., and K. Balasubramanian. "Nanotexturing of PC/n-HA nanocomposites by innovative and advanced spray system." RSC Advances 5, no. 18 (2015): 13653–59. http://dx.doi.org/10.1039/c4ra15488f.

Full text
Abstract:
Nanoscale texturing of n-HA filler on PC matrix is ameliorated by advanced engineered spray techniques viz. spary gun and centrifuged spray dryer, modifying properties of biomedical grade screw/plate coating application.
APA, Harvard, Vancouver, ISO, and other styles
23

Arai, Masataka. "Interpretative Review of Diesel Spray Penetration Normalized by Length and Time of Breakup (Similarity Law of Diesel Spray and Its Application)." Energies 15, no. 13 (2022): 4926. http://dx.doi.org/10.3390/en15134926.

Full text
Abstract:
Tip penetration of diesel spray is one of the most useful parameters to evaluate diesel combustion dynamics. It has strong relationships with ignition delay, premix/diffusion combustion and engine performance, including exhaust emissions. To discuss general combustion physics in various size sprays, non-dimensional expression of spray tip penetration is reviewed. Length and time of injected fuel jet breakup can be considered as characteristic length and timescale of diesel spray. Then, normalized penetration by length and time of breakup was proposed for the scaling of various diesel sprays. U
APA, Harvard, Vancouver, ISO, and other styles
24

Gibbs, Jenna L., Thomas M. Peters, and Lindsay P. Heck. "Comparison of Droplet Size, Coverage, andDrift Potential from UAV Application Methods and Ground Application Methods on Row Crops." Transactions of the ASABE 64, no. 3 (2021): 819–28. http://dx.doi.org/10.13031/trans.14121.

Full text
Abstract:
HighlightsDroplet size, coverage, and drift potential of pesticide spray in corn with UAV application methods were compared with ground methods.Measured droplets were smaller in UAV trials (102 to 182 µm geometric mean diameter) than in ground trials (265 to 432 µm geometric mean diameter).UAV methods (particularly those without a boom) achieved high coverage in the middle swath of the field (>60 droplets cm-2) compared to ground methods (10 to 40 droplets cm-2).Real-time particle monitors indicated potential for downwind spray drift during ground trials but not UAV trials.The findings
APA, Harvard, Vancouver, ISO, and other styles
25

Vijay, Vijay, R. P. S. Dalal, B. S. Beniwal, and Hemant Saini. "Impact of foliar application of potassium and its spray schedule on yield and quality of sweet orange (Citrus sinensis) cv. Jaffa." Journal of Applied and Natural Science 8, no. 4 (2016): 1893–98. http://dx.doi.org/10.31018/jans.v8i4.1058.

Full text
Abstract:
A field study was undertaken to extrapolate the impact of foliar application of potash and its spray schedule on yield and physical and chemical parameters of sweet orange cv. Jaffa at experimental orchard, Department of Horticulture, CCS Haryana Agricultural University, Hisar. The results revealed that foliar application of KNO₃ at both the doses (2 and 4%) was found significantly or marginally better than K₂SO₄ (1.5 and 3.0%) and control (water spray) in increasing the juice content. Peel content, peel thickness and rag content was found to be influenced significantly due to different
APA, Harvard, Vancouver, ISO, and other styles
26

Fettig, Christopher J., Kenneth W. McCravy, and C. Wayne Berisford. "Effects of Nantucket Pine Tip Moth Insecticide Spray Schedules on Loblolly Pine Seedlings." Southern Journal of Applied Forestry 24, no. 2 (2000): 106–11. http://dx.doi.org/10.1093/sjaf/24.2.106.

Full text
Abstract:
Abstract Frequent and prolonged insecticide applications to control the Nantucket pine tip moth, Rhyacionia frustrana (Comstock) (Lepidoptera: Tortricidae) (NPTM), although effective, may be impractical and uneconomical for commercial timber production. Timed insecticide sprays of permethrin (Pounce 3.2® EC) were applied to all possible combinations of spray schedules for three annual NPTM generations during the first, second, and first and second years following stand establishment. An optimal insecticide spray schedule that minimized the number of costly insecticide applications and maximize
APA, Harvard, Vancouver, ISO, and other styles
27

Ebert, Timothy A. "Understanding pesticide spray application." Outlooks on Pest Management 18, no. 5 (2007): 234–36. http://dx.doi.org/10.1564/18oct12.

Full text
APA, Harvard, Vancouver, ISO, and other styles
28

Unrath, C. R. "1059 SPRAY APPLICATION TECHNIQUES." HortScience 29, no. 5 (1994): 580d—580. http://dx.doi.org/10.21273/hortsci.29.5.580d.

Full text
Abstract:
The canopy of an apple orchard can be objectively quantified by using tree height and cross row limb spread to calculate the tree row volume (TRV). Use of the appropriate water rate, adjusted for canopy density, is an effective tool for determining full dilute water rate for airblast applications. To save run off most dilute pesticides are applied at 70% of TRV. TRV model use will be discussed and illustrated. Comparison of handgun vs airblast applications showed more deposition and thinner activity w/handgun. Thinners applied at a fixed concentration of a.i. showed decreased activity as volum
APA, Harvard, Vancouver, ISO, and other styles
29

Joseph, Ron. "Spray gun application techniques." Metal Finishing 105, no. 3 (2007): 68–69. http://dx.doi.org/10.1016/s0026-0576(07)80618-0.

Full text
APA, Harvard, Vancouver, ISO, and other styles
30

Gill, Gunbharpur Singh, and Juang Horng Chong. "Efficacy of Selected Insecticides as Replacement for Neonicotinoids in Managing Sweetpotato Whitefly on Poinsettia." HortTechnology 31, no. 6 (2021): 745–52. http://dx.doi.org/10.21273/horttech04853-21.

Full text
Abstract:
Management of sweetpotato whitefly (Bemisia tabaci), one of the most economically important pests of poinsettia (Euphorbia pulcherrima), relies heavily on neonicotinoid insecticides. Growers are seeking insecticide alternatives to neonicotinoids due to market demands. Although several systemic and translaminar insecticides have been suggested as alternatives to neonicotinoids, no published study has simultaneously compared their efficacies against sweetpotato whiteflies. This study compared the efficacies of 10 systemic and translaminar alternative insecticides with those of two systemic neoni
APA, Harvard, Vancouver, ISO, and other styles
31

Vijay, Vijay, R. P. S. Dalal, B. S. Beniwal, and Hemant Saini. "Effect of foliar application of potassium and its spray schedule on yield and yield parameters of sweet orange (Citrus sinensis Osbeck) cv. Jaffa." Journal of Applied and Natural Science 9, no. 2 (2017): 786–90. http://dx.doi.org/10.31018/jans.v9i2.1276.

Full text
Abstract:
An investigation to evaluate the effect of foliar application of potassium and its spray schedule on yield and yield parameters in sweet orange cv. Jaffa was undertaken at experimental orchard, Department of Horticulture, CCS Haryana Agricultural University, Hisar during the year 2014-15. The results revealed that the foliar application of potassium nitrate at the rate of 2 and 4 % and potassium sulphate at 1.5 and 3.0 % significantly improved average fruit weight, fruit diameter, percentage of medium and large fruits, and fruit yield of sweet orange cv. Jaffa over control (water spray). The t
APA, Harvard, Vancouver, ISO, and other styles
32

Zhu, Heping, James Altland, Richard C. Derksen, and Charles R. Krause. "Optimal Spray Application Rates for Ornamental Nursery Liner Production." HortTechnology 21, no. 3 (2011): 367–75. http://dx.doi.org/10.21273/horttech.21.3.367.

Full text
Abstract:
Spray deposition and coverage at different application rates for nursery liners of different sizes were investigated to determine the optimal spray application rates. Experiments were conducted on 2- and 3-year-old ‘Autumn Spire’ red maple (Acer rubrum) liners. A traditional hydraulic sprayer with vertical booms between tree rows was used to apply the spray applications. Application rates were 10, 20, 30, and 40 gal/acre for the 2-year-old liners and were 20, 40, 60, and 80 gal/acre for the 3-year-old liners. Nylon screens were used to collect spray deposition of a fluorescent tracer dissolved
APA, Harvard, Vancouver, ISO, and other styles
33

Mohamad Rasidi Pairan, Sharul Azmir Osman, Ahmad Nabil Md Nasir, et al. "The Blockage Ratio Effect to The Spray Performances." Journal of Advanced Research in Fluid Mechanics and Thermal Sciences 95, no. 1 (2022): 99–109. http://dx.doi.org/10.37934/arfmts.95.1.99109.

Full text
Abstract:
Nozzle sprays are used in wide range of application. The used of nozzle application is depend on the spray characteristics, by which to suit the particular application. This project studies the effect of the air blockage ratio to the spray characteristics. This research conducted into two part which are experimental and simulation section. The experimental was conducted by using particle image velocimetry (PIV) method, and ANSYS software was used as tools for simulation section. There are two nozzles were tested at 1 bar pressure of water and air. Nozzle A (with blockage ratio 0.316) and nozzl
APA, Harvard, Vancouver, ISO, and other styles
34

Bock, Clive H., and Michael W. Hotchkiss. "A Comparison of Ground-Based Air-Blast Sprayer and Aircraft Application of Fungicides to Manage Scab in Tall Pecan Trees." Plant Disease 104, no. 6 (2020): 1675–84. http://dx.doi.org/10.1094/pdis-11-19-2345-re.

Full text
Abstract:
Pecan scab (caused by Venturia effusa) is a destructive disease of pecan in the southeastern United States. Susceptible cultivars must be sprayed with fungicide every 10 to 21 days to ensure yield and kernel quality. Fungicide is most often applied using large orchard air-blast sprayers. Pecan trees grow tall, and air-blast sprays result in a gradient in spray deposition and consequently of scab. Aerial fungicide application is also practiced. Disease distribution and spray deposition of the two methods have not been compared but will provide information aiding decisions on spray application m
APA, Harvard, Vancouver, ISO, and other styles
35

Gannon, Travis W., and Fred H. Yelverton. "Application Placement Equipment for Bahiagrass (Paspalum notatum) Suppression along Roadsides." Weed Technology 25, no. 1 (2011): 77–83. http://dx.doi.org/10.1614/wt-d-10-00074.1.

Full text
Abstract:
Experiments were initiated during 2003 and 2004 to evaluate application placement equipment for plant growth regulator (PGR) applications along bahiagrass roadsides. Recently designed equipment combine low-volume application and pesticide placement technology. Application placement equipment conceal the image of a traditional spray application. Evaluated application placement equipment included a wet-blade mower (Burch Wet Blade) and rotary-wick applicator (Weedbug™) compared with a traditional broadcast spray. Wet-blade mowers are designed to mow and simultaneously apply a pesticide solution
APA, Harvard, Vancouver, ISO, and other styles
36

Grella, Marco, Paolo Marucco, Athanasios T. Balafoutis, and Paolo Balsari. "Spray Drift Generated in Vineyard during Under-Row Weed Control and Suckering: Evaluation of Direct and Indirect Drift-Reducing Techniques." Sustainability 12, no. 12 (2020): 5068. http://dx.doi.org/10.3390/su12125068.

Full text
Abstract:
The most widespread method for weed control and suckering in vineyards is under-row band herbicide application. It could be performed for weed control only (WC) or weed control and suckering (WSC) simultaneously. During herbicide application, spray drift is one of the most important environmental issues. The objective of this experimental work was to evaluate the performance of specific Spray Drift Reducing Techniques (SDRTs) used either for WC or WSC spray applications. Furthermore, spray drift reduction achieved by buffer zone adoption was investigated. All spray drift measurements were cond
APA, Harvard, Vancouver, ISO, and other styles
37

Loganathan, Vimalendran, and K. Wahab. "Influence of Panchagavya foliar spray on the growth attributes and yield of baby corn (Zea mays) cv. COBC 1." Journal of Applied and Natural Science 6, no. 2 (2014): 397–401. http://dx.doi.org/10.31018/jans.v6i2.434.

Full text
Abstract:
Field experiments were conducted at experimental farm, Faculty of Agriculture, Annamalai University, Chidambaram during July to September (2008) and January to March (2009) in two seasons to study the effect of foliar spray of Panchagavya on the growth and yield of Baby corn cv. COBC 1. The experiments were laid out in Randomized Block Design with fourteen treatments and replicated thrice. The treatments included foliar spray and inorganic nutrient application at various stages of baby corn. The results revealed that application of 100% recommended dose of fertilizers (RDF) [N150: P60 (P2O5):
APA, Harvard, Vancouver, ISO, and other styles
38

Wood, B. W., and J. A. Payne. "Net Photosynthesis of Orchard Grown Pecan Leaves Reduced by Insecticide Sprays." HortScience 21, no. 1 (1986): 112–13. http://dx.doi.org/10.21273/hortsci.21.1.112.

Full text
Abstract:
Abstract Eight of 9 insecticides used for pest control in pecan [Carya illionoensis (Wang.) K. Koch] suppressed net photosynthesis (Pn) of mature leaves in the orchard after a single spray treatment. Reductions were on the order of about 20% of pretreatment levels within 1 day after treatment. Sprays continued to suppress Pn for several days after application. Leaves exhibited no visible damage as a result of spray treatments. Emulsifiable concentrate formulations tended to be more detrimental to Pn than were wettable powder formulations. Four applications of fen valerate and carbaryl at 14-da
APA, Harvard, Vancouver, ISO, and other styles
39

Teske, Milton E., Harold W. Thistle, and Bradley K. Fritz. "Modeling Aerially Applied Sprays: An Update to AGDISP Model Development." Transactions of the ASABE 62, no. 2 (2019): 343–54. http://dx.doi.org/10.13031/trans.13129.

Full text
Abstract:
Abstract. AGDISP (AGricultural DISPersal) models the release of aerially applied sprays with a Lagrangian-based droplet tracking algorithm initialized by user inputs (aircraft description, spray boom nozzle locations, drop size distribution, spray material properties, release height, and meteorology). The model offers an extensive set of output plots and toolbox options (deposition, spray block, stream, and multiple application assessments) to predict the downwind behavior of released sprays and assess their potential environmental impact. The model is used in risk analysis, operational planni
APA, Harvard, Vancouver, ISO, and other styles
40

Vaadeland, John R., Craig A. Longtine, Kathy L. Flanders, Abdelazi Lagnaoui, and Edward B. Radcliffe. "Control of Colorado Potato Beetle, Potato Leafhopper, and Green Peach Aphid, 1991." Insecticide and Acaricide Tests 17, no. 1 (1992): 147. http://dx.doi.org/10.1093/iat/17.1.147.

Full text
Abstract:
Abstract Potatoes were planted 15 Mayat the University of Minnesota, Agricultural Experiment Station, Rosemount. Plots were 4 rows wide, 10.6 m (35 ft) long, with 102 cm (40 in) spacing between rows and 30 cm (12 in) between plants. Plots were separated on all sides by 2.0 m (6.7 ft) of cultivated soil. Eight experiments were planted in the same field. For each experiment, a completely randomized plot design with 4 replications was used. In all eight experiments, CPB control was the primary objective. Experiment 1 was to evaluate neem (Margosan-O) alone or in combination with other insecticide
APA, Harvard, Vancouver, ISO, and other styles
41

Lagnaoui, Abdelaziz, Michael S. Connelly, Craig A. Longtine, Kathy L. Flanders, Edward B. Radcliffe, and Roger Hansen. "Control of Colorado Potato Beetle and Potato Leafhopper, 1991." Insecticide and Acaricide Tests 17, no. 1 (1992): 128. http://dx.doi.org/10.1093/iat/17.1.128.

Full text
Abstract:
Abstract Potatoes were planted 14 May at the Research Farm of the Red River Valley Potato Growers Association, Grand Forks, ND. Plots were 4 rows wide, 14 m (45 ft) long, with 96 cm (38 in) spacing between rows and 30 cm (12 in) between plants. Plots were separated on all sides by 1.9 cm (6.3 ft) of cultivated soil. Eight experiments were planted in the same field. A completely randomized plot design with 4 replications was used. In all eight experiments, CPB control was the primary objective. Experiment 1 was to evaluate neem (Margosan-O) alone or in combination with other insecticides. Exper
APA, Harvard, Vancouver, ISO, and other styles
42

Chocholousek, Michal, David Bricín, and Zbynek Spirit. "Heat Treatment Influence on Mechanical Properties of Nickel Based Cold Spray." MATEC Web of Conferences 367 (2022): 00005. http://dx.doi.org/10.1051/matecconf/202236700005.

Full text
Abstract:
The article deals with evaluation of Ni and NiCr Cold Spray layers as a potential method for repairing components in energy industry by replacing or refilling flawed material. Cold spray layers from two NiCr powders of different particle sizes sprayed with nozzle for inner tube application and from Ni powder of one particle size sprayed with different nozzle types – for inner and outer tube applications – were tested. The evaluation is aimed on mechanical properties and metallographic analysis of cold spray layers as received and after defined heat treatments. It summarizes tensile properties
APA, Harvard, Vancouver, ISO, and other styles
43

Derksen, Richard C., Charles R. Krause, Robert D. Fox, Ross D. Brazee, and Randy Zondag. "Effect of Application Variables on Spray Deposition, Coverage, and Ground Losses in Nursery Tree Applications." Journal of Environmental Horticulture 24, no. 1 (2006): 45–52. http://dx.doi.org/10.24266/0738-2898-24.1.45.

Full text
Abstract:
Abstract An experimental cross-flow (CF) fan sprayer and a conventional, axial-fan (AF), orchard sprayer were used to treat multiple rows consisting of four year old, multi-stem, red maple trees, Acer rubrum L. and Turkish filbert trees, Corylus colurna L. The effects of sprayer type, fan orientation, application volume, and ground speed on canopy and ground spray deposits and canopy spray coverage across multiple target rows were evaluated. Variations in deposits and coverage across the canopies were generally smaller for the CF sprayer than the AF sprayer. The AF sprayer produced the highest
APA, Harvard, Vancouver, ISO, and other styles
44

Parveen, Shazia, Rana Muhammad Iqbal, Muhammad Akram, Faheem Iqbal, Muhammad Tahir, and Muhammad Rafay. "Improvement of growth and productivity of cotton (Gossypium hirsutum L.) through foliar applications of naphthalene acetic acid." Semina: Ciências Agrárias 38, no. 2 (2017): 561. http://dx.doi.org/10.5433/1679-0359.2017v38n2p561.

Full text
Abstract:
Plant growth regulators like naphthalene acetic acid (NAA) positively affect the growth and yield of crop plants. An experiment was conducted to check the foliar application of NAA on growth and yield components of cotton variety Bt.121 under field condition at research area of agriculture farm near Cholistan Institute of Desert Studies (CIDS), The Islamia University of Bahawalpur, Pakistan. The experiment was comprised of foliar application of NAA (1%) viz. T0 (control), T1 (One spray of NAA), T2 (Two sprays of NAA), T3 (Three sprays of NAA), T4 (Four sprays of NAA). The first foliar spray wa
APA, Harvard, Vancouver, ISO, and other styles
45

Lu, Weixun, Nathaniel K. Newlands, Odile Carisse, David E. Atkinson, and Alex J. Cannon. "Disease Risk Forecasting with Bayesian Learning Networks: Application to Grape Powdery Mildew (Erysiphe necator) in Vineyards." Agronomy 10, no. 5 (2020): 622. http://dx.doi.org/10.3390/agronomy10050622.

Full text
Abstract:
Powdery mildew (Erysiphe necator) is a fungal disease causing significant loss of grape yield in commercial vineyards. The rate of development of this disease varies annually and is driven by complex interactions between the pathogen, its host, and environmental conditions. The long term impacts of weather and climate variability on disease development is not well understood, making the development of efficient and durable strategies for disease management challenging, especially under northern conditions. We present a probabilistic, Bayesian learning network model to explore the complex causa
APA, Harvard, Vancouver, ISO, and other styles
46

Southwick, S. M., W. Olson, and J. Yeager. "FOLIAR POTASSIUM SPRAY TIMING EFFECTS ON SEASONAL LEAF POTASSIUM AND PRODUCTIVITY OF FRENCH PRUNE (PRUNUS DOMESTICA)." HortScience 27, no. 6 (1992): 594f—594. http://dx.doi.org/10.21273/hortsci.27.6.594f.

Full text
Abstract:
Soil applied potassium (K) may not alleviate K deficiency in fine textured California soils when high numbers of prunes per tree are produced leading to leaf necrosis and limb death. Because K demand is increased by fruit, K nitrate (KN) sprays appear to be a corrective option for growers in this situation. Our objectives were to determine best seasonal KN spray liming strategies to minimize K deficiency, quantify K uptake into leaves after spray and to evaluate spray effects on productivity. Results indicated that regardless of spray timing leaf K was increased by approximately 0.3% and three
APA, Harvard, Vancouver, ISO, and other styles
47

Singh, M., and K. S. Sandhu. "Impact of zinc fertilization on growth, yield and quality of zero till wheat (Triticum aestivum L.)." Journal of Environmental Biology 42, no. 2 (2021): 326–31. http://dx.doi.org/10.22438/jeb/42/2/mrn-1598.

Full text
Abstract:
Aim: To determine the impact of soil and foliar application of ZnSO4.7H2O at late stages of wheat as heading initiation (5% ear formation), 100% heading (complete ear formation) and heading initiation and 100% heading along with recommended dose of fertilizer on growth, yield and quality of zero till wheat. Methodology: The field experiment was conducted on zero till wheat. The treatments consisted of control (no Zn), soil application of 12.5, 25, 37.5, 50 kg ha-1 ZnSO4.7H2O and foliar application of 0.5% Zn as one spray at heading initiation (5% ear formation), one spray at 100% heading (comp
APA, Harvard, Vancouver, ISO, and other styles
48

Gous, S. F., T. M. Withers, and A. J. Hewitt. "A new pest management research facility Scions largescale precision track sprayer." New Zealand Plant Protection 67 (January 8, 2014): 267–73. http://dx.doi.org/10.30843/nzpp.2014.67.5724.

Full text
Abstract:
A new large scale precision track sprayer has been developed and evaluated for spray deposition and pesticide application research under controlled conditions The spray room is fitted with a 4 m wide electrically driven boom suspended 4 m above ground running on a 12 m long Ibeam It is fitted with 9 independently controlled shut off valves and nozzles Sprays can be applied to live plant canopies up to 3 m tall within a 2 m times; 3 m sample area The number location and type of nozzle on the boom can be altered as can spray liquid pressure and boom speed in order to simulate a wide range of spr
APA, Harvard, Vancouver, ISO, and other styles
49

Campbell, Linda S., Timothy A. Prince, and Harry K. Tayama. "THE EFFECTS OF UNICONAZOLE ON PRODUCTION AND POSTPRODUCTION CHARACTERISTICS OF EASTER LILIES." HortScience 25, no. 9 (1990): 1099f—1099. http://dx.doi.org/10.21273/hortsci.25.9.1099f.

Full text
Abstract:
Uniconazole (Sumagic) drench applications of 1.9, 2.7, and 3.8 mL per plant and spray applications of 10, 20, and 30 ppm resulted in shorter plants and more blasted flower buds compared to control plants. Drench applications also resulted in more chlorotic leaves than controls. Average lily height with Sumagic ranged from 19 to 29 cm after Sumagic drench and spray applications, respectively. Average plant height was 29 and 31 cm for ancymidol spray and drench application, respectively. Bud abortion was 10, 12, and 17% for spray treatments of Sumagic at 10, 20, and 30 ppm, respectively, while a
APA, Harvard, Vancouver, ISO, and other styles
50

Turner, D. A., and R. Brightwell. "An evaluation of a sequential aerial spraying operation against Glossina pallidipes Austen (Diptera: Glossinidae) in the Lambwe Valley of Kenya: aspects of post-spray recovery and evidence of natural population regulation." Bulletin of Entomological Research 76, no. 2 (1986): 331–49. http://dx.doi.org/10.1017/s0007485300014802.

Full text
Abstract:
AbstractAn attempt to eradicate Glossina pallidipes Austen from the Lambwe Valley of western Kenya by sequential aerial application of endosulfan aerosol spray is described. The operation was ultimately unsuccessful, even after nine sprays of relatively heavy dosages of insecticide. Survivors were present throughout after each spray, and females mated and bred between sprays. The population was reduced by over 99·9% in main habitats of thicket and woodland and by about 90% in conifer plantation. The outcome of a model of spray effectiveness suggested, however, that the final reduction in popul
APA, Harvard, Vancouver, ISO, and other styles
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!