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Готові списки джерел за темами / Pests of alfalfa

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Добірка наукової літератури з теми "Pests of alfalfa"

Автор: Grafiati

Опубліковано: 3 червня 2025

Оновлено: 31 липня 2025

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Статті в журналах з теми "Pests of alfalfa"

1

SMALL, ERNEST. "INSECT PESTS AND THE EVOLUTION OF DEFENSIVE GLANDULAR TRICHOMES IN ALFALFA." Canadian Journal of Plant Science 65, no. 3 (1985): 589–96. http://dx.doi.org/10.4141/cjps85-081.

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Glandular trichomes can defend (Medicago species from herbivores in a variety of insect orders. Wild alfalfas with high concentrations of glandular trichomes occur in a restricted portion of the geographical range of the species (Medicago saliva L. sensu lato), especially in the Caucasus, Ukraine, and adjacent areas of the USSR. These observations suggest that this adaptation was developed to defend the alfalfa against insect pests with similar geographical distribution. That M. sativa plants with pods covered with glandular hairs tend to have larger, if fewer, seeds than plants with pods lack

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2

Перцева and Elena Pertseva. "ALFALFA PESTS IN SAMARA REGION FOREST-STEPPE." Bulletin Samara State Agricultural Academy 1, no. 4 (2016): 28–32. http://dx.doi.org/10.12737/21800.

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The purpose of research is alfalfa yields increasing by crops of different ages in the conditions of forest-steppe of the Samara region. Field studies were carried out in breeding crop rotation of department introduction, selection of feed and oilseeds Volga research station named after P.N. Konstantinov in 2014. Entomofauna alfalfa crops of different varieties and ages were studied mowing butterfly net. More numerous entomofauna was recorded in crops of alfalfa 2011 compared with age-related crops in 2008. Specialized herbivores studied culture were found in the growing season 2014 agrocenose

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3

Jovicic, Ivana, Andja Radonjic, and Olivera Petrovic-Obradovic. "Aphids (Hemiptera: Aphididae) on alfalfa in Serbia: Seasonal dynamics and pest status." Pesticidi i fitomedicina 37, no. 3 (2022): 77–83. http://dx.doi.org/10.2298/pif2203077j.

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Alfalfa (Medicago sativa) is the most important forage legume and one of the most widely grown crops in Serbia. Aphids (Hemiptera: Aphididae) are one of the most significant groups of pests of that crop. Three aphid species, Acyrthosiphon pisum, Aphis craccivora and Therioaphis trifolii, are considered as important pests of alfalfa in Serbia. The most abundant of them, T. trifolii, is more adapted to warmer temperatures and it is the predominant aphid species during summer months, while A. pisum is prevalent during the spring period. In warmer climates, an increasing abundance of T. trifolii a

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4

Yang, Bo, Yao Zhao, and Zhenfei Guo. "Research Progress and Prospect of Alfalfa Resistance to Pathogens and Pests." Plants 11, no. 15 (2022): 2008. http://dx.doi.org/10.3390/plants11152008.

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Alfalfa is one of the most important legume forages in the world and contributes greatly to the improvement of ecosystems, nutrition, and food security. Diseases caused by pathogens and pests severely restrict the production of alfalfa. Breeding resistant varieties is the most economical and effective strategy for the control of alfalfa diseases and pests, and the key to breeding resistant varieties is to identify important resistance genes. Plant innate immunity is the theoretical basis for identifying resistant genes and breeding resistant varieties. In recent years, the framework of plant i

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5

Arnett, W. Harold. "Control of Insect Pests of Forage Alfalfa, 1985." Insecticide and Acaricide Tests 11, no. 1 (1986): 203. http://dx.doi.org/10.1093/iat/11.1.203.

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Abstract A 10-yr-old stand of alfalfa located at the Main Station Field Laboratory, Reno, NV was used for this study. Treatments were applied when alfalfa was 14-16 inches tall with 30-40% of terminals showing alfalfa weevil damage. Plots were 25 × 50 ft with treatments replicated 4 times in a randomized complete block design. Sprays were applied with a CO2 activated bicycle plot sprayer calibrated to deliver 18.5 gpa at 35 psi. Treatments were on May 24 and posttreatment samples were taken on May 27, 31 and jun 7, 14 and consisted of 10 sweeps of a standard net taken at random from each repli

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6

K. A. A siry, N. A. H. Alkenani, and H.A. Alshehri. "ABUNDANCE AND POPULATION DYNAMICS OF THE MAJOR INSECT PESTS OF DATE PALM UNDER THE DATE PALM- FORAGE INTERCROPPING SYSTEM." IRAQI JOURNAL OF AGRICULTURAL SCIENCES 56, Special (2025): 311–20. https://doi.org/10.36103/qe3fwj18.

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The objective of this study was to investigate the influence of blue panic (Panicum antidotale Retz.) and alfalfa (Medicago sativa L.) growth around palm trees on insect pests. Four experimental treatments were employed to develop fodder around date palms in the field: alfalfa, blue panic, combination of alfalfa and blue panic, and a palm monoculture without any fodder. Each treatment consisted of six replications, resulting in a total of 24 date palms examined. Insect pests were collected monthly utilizing light and pitfall traps from January to December 2020. A one-way ANOVA was used to eval

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7

Johnson, Gregory, Kurt Kammerzell, and Susan Hudson. "Control of Sugarbeet Insect Pests, 1988." Insecticide and Acaricide Tests 14, no. 1 (1989): 282–83. http://dx.doi.org/10.1093/iat/14.1.282a.

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Abstract Granular insecticide treatments were applied at planting time to 2 separate flood-irrigated fields located in the Yellowstone Valley of eastern Montana. Field 1, previously in alfalfa, was planted to ‘Beta 3265’ on 24 May using an IH185 8-row planter. Granular insecticides were banded on top of the ridge through a ground-driven Gandy applicator and lightly incorporated with a drag chain. Each treatment and untreated control were replicated 10 times in a randomized complete block design. Individual replicates were 2 rows (22-inch spacing) by 2,500 ft. Field 2 was planted in ‘Beta 6566’

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8

Doss, Michael, and Richard Berberet. "Control of Insect Pests of Alfalfa in Oklahoma, 1986." Insecticide and Acaricide Tests 12, no. 1 (1987): 164–65. http://dx.doi.org/10.1093/iat/12.1.164a.

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Abstract Chemical treatments were applied on 2 Mar in a dryland field of “Arc” alfalfa on the South Central Research Station at Chickasha, OK. Controls for the alfalfa weevil, blue alfalfa aphid and pea aphid were evaluated. Chemicals were applied using a tractor drawn boom sprayer equipped with flooding nozzles and calibrated to deliver 20 gpa at 20 psi. Temperature at the time of application ranged from 60-70°F and winds were less than 5 mph. Plots were 4 x 7 m and arranged in a randomized complete block design with 4 replications. Population densities of weevil larvae were determined from 2

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9

Skelton, Laura E., and Gary W. Barrett. "A comparison of conventional and alternative agroecosystems using alfalfa (Medicago sativa) and winter wheat (Triticum aestivum)." Renewable Agriculture and Food Systems 20, no. 1 (2005): 38–47. http://dx.doi.org/10.1079/raf200478.

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AbstractNatural systems agriculture is based on an understanding that natural systems are self-sustaining due to regulatory mechanisms and processes that help to ensure the long-term maintenance of the ecosystem. An agroecosystem modeled after nature should encompass greater stability and biodiversity at all levels of organization than an agroecosystem based on conventional agricultural practices. The main objective of this study was to determine whether agroecosystems modeled after nature exhibit advantages over conventional agroecosystems. Five treatments were examined: winter wheat (Triticu

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10

Evans, Edward. "Dispersal in Host–Parasitoid Interactions: Crop Colonization by Pests and Specialist Enemies." Insects 9, no. 4 (2018): 134. http://dx.doi.org/10.3390/insects9040134.

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Interactions of insect pests and their natural enemies increasingly are being considered from a metapopulation perspective, with focus on movements of individuals among habitat patches (e.g., individual crop fields). Biological control may be undercut in short-lived crops as natural enemies lag behind the pests in colonizing newly created habitat. This hypothesis was tested by assessing parasitism of cereal leaf beetle (Oulema melanopus) and alfalfa weevil (Hypera postica) larvae at varying distances along transects into newly planted fields of small grains and alfalfa in northern Utah. The ra

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Дисертації з теми "Pests of alfalfa"

1

Ottman, Michael J. "Nondormant Alfalfa Varieties for Arizona 2013." College of Agriculture and Life Sciences, University of Arizona (Tucson, AZ), 2013. http://hdl.handle.net/10150/305087.

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2

Ottman, Michael. "Nondormant Alfalfa Varieties for Arizona 2008." College of Agriculture and Life Sciences, University of Arizona (Tucson, AZ), 2008. http://hdl.handle.net/10150/146995.

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2 pp.<br>Nondormant alfalfa varieties are adapted to mild winter areas in Arizona. An alfalfa variety should be selected based on dormancy class, potential pest problems, university yield trials, and on-farm tests. This publication contains pest resistance ratings and a summary of University of Arizona yield trials for nondormant alfalfa varieties.

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3

Ottman, Michael J. "Nondormant Alfalfa Varieties for Arizona 2012." College of Agriculture and Life Sciences, University of Arizona (Tucson, AZ), 2011. http://hdl.handle.net/10150/225856.

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4

Mazahery-Laghab, Hojjatollah. "Endogenous resistance to insect pests in alfalfa : engineering for enhanced resistance." Thesis, Durham University, 1997. http://etheses.dur.ac.uk/4695/.

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Alfalfa (Medicago sativa) is a valuable forage crop grown throughout the World. While the crop is resistant to attack by many insect pests, it is subject to potentially severe losses through the action of several specific pests, which are adapted to alfalfa as a host. The most economically damaging of these pests is the alfalfa weevil, Hypera postica. This thesis investigates the endogenous defences of alfalfa against insects, which are responsible for its resistance to non-pest species, and develops a strategy for increasing the resistance of alfalfa towards pest species, specifically alfalfa

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5

Madhusudhan, Vaadiyar V. "Interaction of the spotted alfalfa aphid and its food plant." Title page, contents and summary only, 1994. http://web4.library.adelaide.edu.au/theses/09PH/09phm1812.pdf.

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6

Rethwisch, Michael D., Lois Berger, Bradford J. Griffin, A. Bradley, Mark Reay, and J. E. Nelson. "Insecticidal control of late winter/spring alfalfa pests in the Palo Verde Valley, 2001." College of Agriculture, University of Arizona (Tucson, AZ), 2002. http://hdl.handle.net/10150/203853.

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Fifteen insecticide treatments were applied March 12, 2001, to compare their efficacies on alfalfa weevils, western flower thrips, blue alfalfa aphids and associated aphid predators. Furadan and insecticides containing a pyrethroid active ingredient reduced alfalfa weevil larvae by more than 89% when compared with the untreated check. All treatments provided a minimum of 70% control of blue alfalfa aphids by seven days post treatment, with fewest aphids noted in WarriorT insecticide treatments. Although some insecticides reduced adult western flower thrips number initially, adult thrips increa

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7

Goosey, Hayes Blake. "A degree day model of sheep grazing influence on alfalfa weevil, Hypera postica." Thesis, Montana State University, 2009. http://etd.lib.montana.edu/etd/2009/goosey/GooseyH1209.pdf.

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Alfalfa, Medicago sativa (L.), is produced on approximately 720,000 ha in Montana and is the foremost forage crop in many high, semiarid, intermountain states. Two biological stressors (insects and weeds) combined with poor field management are primarily responsible for reduced alfalfa production. In the U.S. alone, arthropods cause an estimated $260 million loss to alfalfa with the alfalfa weevil (AW), Hypera postica Gyllenhal, being the most damaging phytophagous pest in the United States. Using degree days as predictors for initiation and cessation of arthropod IPM programs is a common prac

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8

Luna, John. "Development, implementation, and economic evaluation of an integrated pest management program for alfalfa in Virginia." Diss., Virginia Polytechnic Institute and State University, 1986. http://hdl.handle.net/10919/49827.

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9

Cotty, Susanne. "Determining the Economic Damaging Level of the Egyptian Alfalfa Weevil Hypera brunneipennis (Bohemian)." College of Agriculture, University of Arizona (Tucson, AZ), 1986. http://hdl.handle.net/10150/200480.

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An experiment was conducted to ascertain the population level of Egyptian alfalfa weevil Hvpera brunneipennis (EAW) at which chemical control becomes economically justified. Four treatments were established by applying malathion at 1 lb. a.i./acre when an average of 5,10,15, or 20 weevil larvae were found per five sweeps; one treatment was sprayed every week (0 larvae) and the controls received no chemical treatment. Five 180- degree sweeps were taken weekly in each plot with a standard 15 -inch net and net contents were emptied into a white plate for counting. EAW larvae and adults were count

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10

Nigh, Edward Jr, and Lester Dawson. "The Stateus of Stem Nematodes in Arizona Alfalfa in 1985-86." College of Agriculture, University of Arizona (Tucson, AZ), 1986. http://hdl.handle.net/10150/200534.

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Alfalfa stem nematodes have become a more serious pest since the advent of non -dormant alfalfa. Their distribution has increased and their period of feeding activity has been prolonged. A state survey has been conducted to determine the presence of the nematode in the principal alfalfa- growing areas of the state. The population dynamics were followed during the 1985-86 growing season. Alfalfa samples, including stems and crowns, were taken from selected fields in each geographic area and the nematodes were extracted. Populations from the samples determined the fields infested and the periods

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Книги з теми "Pests of alfalfa"

1

Samac, Deborah A., Landon H. Rhodes, and William O. Lamp. Compendium of alfalfa diseases and pests. APS Press, 2015.

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2

Mayer, D. F. Spotted alfalfa aphid. Cooperative Extension, College of Agriculture & Home Economics, Washington State University, 1989.

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3

Johnson, Dennis A. Alfalfa downy mildew. Cooperative Extension, College of Agriculture and Home Economics, Washington State University, 1989.

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4

International, Pioneer Hi-Bred, ed. Alfalfa management/diagnostic guide. Pioneer Hi-Bred International, 1989.

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5

Gilbert, Richard G. Verticillium wilt of alfalfa. Cooperative Extension, College of Agriculture & Home Economics, Washington State University, 1988.

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6

Maloy, Otis C. Bacterial wilt of alfalfa. Cooperative Extension, College of Agriculture & Home Economics, Washington State University, 1985.

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7

Harper, A. M. Insects and mites on alfalfa in Alberta. Research Branch, Agriculture Canada, 1988.

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8

Schaber, Burton Danis. Insects infesting seed alfalfa in the Prairie Provinces: A field guide. Communication Branch, Agriculture Canada, 1992.

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9

M, Suzuki, ed. Production et exploitation de la luzerne dans les provinces de l'Atlantique. Agriculture Canada, 1989.

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10

C, Readey J. Clover dodder. W.H. Cullin, 1997.

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Частини книг з теми "Pests of alfalfa"

1

Hangay, George, Severiano F. Gayubo, Marjorie A. Hoy, et al. "Alfalfa (Lucerne) Pests and their Management." In Encyclopedia of Entomology. Springer Netherlands, 2008. http://dx.doi.org/10.1007/978-1-4020-6359-6_136.

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2

"PART II: Arthropod Pests." In Compendium of Alfalfa Diseases and Pests, Third Edition, edited by Deborah A. Samac, Landon H. Rhodes, and William O. Lamp. The American Phytopathological Society, 2016. http://dx.doi.org/10.1094/9780890544488.003.

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3

Edde, Peter A. "Arthropod pests of alfalfa (Medicago sativa L.)." In Field Crop Arthropod Pests of Economic Importance. Elsevier, 2022. http://dx.doi.org/10.1016/b978-0-12-818621-3.00016-1.

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4

"Introduction." In Compendium of Alfalfa Diseases and Pests, Third Edition, edited by Deborah A. Samac, Landon H. Rhodes, and William O. Lamp. The American Phytopathological Society, 2016. http://dx.doi.org/10.1094/9780890544488.001.

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5

"PART I: Infectious Diseases." In Compendium of Alfalfa Diseases and Pests, Third Edition, edited by Deborah A. Samac, Landon H. Rhodes, and William O. Lamp. The American Phytopathological Society, 2016. http://dx.doi.org/10.1094/9780890544488.002.

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"PART III: Noninfectious Diseases and Abiotic Conditions." In Compendium of Alfalfa Diseases and Pests, Third Edition, edited by Deborah A. Samac, Landon H. Rhodes, and William O. Lamp. The American Phytopathological Society, 2016. http://dx.doi.org/10.1094/9780890544488.004.

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"Back Matter." In Compendium of Alfalfa Diseases and Pests, Third Edition, edited by Deborah A. Samac, Landon H. Rhodes, and William O. Lamp. The American Phytopathological Society, 2016. http://dx.doi.org/10.1094/9780890544488.bm.

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"Front Matter." In Compendium of Alfalfa Diseases and Pests, Third Edition, edited by Deborah A. Samac, Landon H. Rhodes, and William O. Lamp. The American Phytopathological Society, 2016. http://dx.doi.org/10.1094/9780890544488.fm.

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9

Fetahaj, Rozafa, Besarta Kabashi, and Arben Mehmeti. "Parasitic Plants in Forage Legumes – Medicago sativa L." In Parasitic Plants. IntechOpen, 2022. http://dx.doi.org/10.5772/intechopen.100539.

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Medicago sativa L. is one of the main forage crops widely grown throughout the world. The yield quality and quantity of the alfalfa crop are influenced by many factors. Weeds, as the most problematic pests in agriculture, compete with crops obtaining water, nutrients, light, and space, and parasitic weeds are becoming a threat to food production. Weed species, such as Cuscuta spp., are particularly noxious since they also directly extract valuable water and nutrients from the host plant, and in some cases can also be difficult to eradicate.

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Rhodes, Landon, and R. Mark Sulc. "Alfalfa Diseases." In Encyclopedia of Pest Management (Print). CRC Press, 2002. http://dx.doi.org/10.1201/noe0824706326.ch6.

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Тези доповідей конференцій з теми "Pests of alfalfa"

1

Rice, Marlin E. "Potato Leafhoppers and Blister Beetle: Management of Traditional and Nontraditional Alfalfa Pests." In Proceedings of the First Annual Crop Production and Protection Conference. Iowa State University, Digital Press, 1990. http://dx.doi.org/10.31274/icm-180809-345.

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2

Lefko, Stephen A., Larry P. Pedigo, and Marlin E. Rice. "Potato Leafhopper-Resistant Alfalfa: Yield Advantages and New Pest Management Guidelines." In Proceedings of the 1995 Integrated Crop Management Conference. Iowa State University, Digital Press, 1997. http://dx.doi.org/10.31274/icm-180809-570.

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3

Mostafa, Ayman. "Alfalfa pest management in the irrigated desert of the southwest: Challenges and opportunities." In 2016 International Congress of Entomology. Entomological Society of America, 2016. http://dx.doi.org/10.1603/ice.2016.115710.

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