Ambrosia Artemisiifolia Common Ragweed

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TREATMENT OPTIONS from the book Weed Control in Natural Areas in the Western United States This does not constitute a formal recommendation. When using herbicides always read the label, and when in doubt consult your farm advisor or county agent. This is an excerpt from the book Weed Control in Natural Areas in the Western United States and is available wholesale through the UC Weed Research & Information Center (wric.ucdavis.edu) or retail through the Western Society of Weed Science (wsweedscience.org) or the California Invasive Species Council (cal-ipc.org). Ambrosia artemisiifolia Common ragweed Family: Asteraceae NON-CHEMICAL CONTROL Grazing F often regrows after grazing Prescribed burning P often increases after fire; green most of the summer, other fuel needed to carry a fire in infested areas Mowing and cutting P plants will often rebloom after mowing, try to cut at ground level Tillage E expect new flush of plants if soil moisture is available after tillage Grubbing, digging or hand pulling E remove as much of the plant and root as possible to prevent regrowth CHEMICAL CONTROL The following specific use information is based on published papers and reports by researchers and land managers. Other trade names may be available, and other compounds also are labeled for this weed. Directions for use may vary between brands; see label before use. 2,4-D E Imazapic G Aminocyclopyrachlor + chlorsulfuron E Imazapyr E Aminopyralid E Metsulfuron P Chlorsulfuron P Paraquat NIA Clopyralid G Picloram E Dicamba E Rimsulfuron G Sulfometuron Glyphosate E E Hexazinone NIA Sulfosulfuron NIA Triclopyr G E = Excellent control, generally better than 95% * = Likely based on results of observations of G = Good control, 80-95% related species FLW = flowering F = Fair control, 50-80% NIA = No information available P = Poor control, below 50% Fa = Fall Control includes effects within the season of treatment. Sp = Spring Control is followed by best timing, if known, when efficacy is E or G. Su = Summer RECOMMENDED CITATION: DiTomaso, J.M., G.B. Kyser et al. 2013. Weed Control in Natural Areas in the Western United States. Weed Research and Information Center, University of California. 544 pp. 1 of 1 2013 .

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Amb's : the Spearheads of Ambrosia
Issue 13, December 2004 Amb’s : The Spearheads of Ambrosia Ambrosia artemisiifolia is popularly known as “ragwort”, “annual ragweed” or “short ragweed”, and is really just that: a weed. And not a harmless one… Indeed, A. artemisiifolia has already put many people’s lives in danger and is threatening to become an acute public health problem throughout the world. The good part though is that the battle waged against Ambrosia has brought about a better understanding of a number of proteins which are at the heart of the damaging effects the plant has on certain people. A modern ailment Nowadays, farmers do not feed their cattle with hay but with fodder made up of grass that has Two hundred years ago, had you been suffering been cut before it has had time to flower. Yet in from the effects of hay fever and attempted to spite of the resulting decrease in pollen, cases of describe your symptoms to a doctor, he would hay fever continue to increase. And now, to cap it have been – to say the least – puzzled. In fact, it all, a new formidable enemy has cropped up in the was only in 1819 that the condition was first fully last few years: Ambrosia. described in a scientific review by a London practitioner. For a long time, this mysterious affliction – known as ‘Bostock’s catarrh’ – was Once food for the Gods, now just a weed described as ‘a rare and most extraordinary condition’. It started as a minor medical curiosity Ambrosia –meaning ‘food for the Gods’ – covers to become, within the space of two centuries, a 40 different species that are mainly found in the very common ailment which affects 10 to 18% of temperate regions of America.
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Common Ragweed: an Alien Invasive Species Threatening Health and Crop Production All Over Europe
COMMON RAGWEED: AN ALIEN INVASIVE SPECIES THREATENING HEALTH AND CROP PRODUCTION ALL OVER EUROPE It thrives in disturbed soils and grows mainly in fields, along roadsides and riverbanks and is a major cause of allergic disease. This invasive species, which is the source of highly allergenic pollen, is Ambrosia artemisiifolia, also known as common ragweed. Ambrosia artemisiifolia is an annual herbaceous plant native to North America. Although it was first observed in Europe in the mid-19th century, it began to spread in Europe after 1940, first in Hungary and then in Eastern European countries, South Eastern France, Northern Italy and into many continental European countries later on, partly as a result of the trade in crop seed that was contaminated with ragweed. It poses a great threat to human health, economy and the environment. It is a highly invasive weed. It spreads quickly under warm continental climate conditions, colonising a wide range of habitats. Ragweed populations are considered as a pest for agriculture and natural ecosystems. They successfully compete with neighbouring plants and crops for resources. Sunflower fields, for example, are particularly susceptible to ragweed infestation. Moreover, Ambrosia pollen is an important cause of human allergy with symptoms ranging from hay fever to asthma. Currently, the pace at which Ambrosia is spreading in Europe is on the rise, with a concomitant rise in allergy. INTERESTING FACTS THE POLLEN Pollen is produced by all seed plants and is key for their reproductive cycle. It is generated by male flowers. Ragweed may produce up to a billion pollen grains per plant in one season and uses the wind to spread them.
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Ragweeds (Ambrosia Artemisiifolia L. and Other Ambrosia Species) Are Plants from America That Have Been Introduced Into Europe
Ragweeds (Ambrosia artemisiifolia L. and other Ambrosia Scientists concerned with the ongoing spread of Mainly common ragweed produces large amounts of species) are plants from America that have been ragweeds in Europe and with the large damages pollen that is highly allergenic and can result in severe introduced into Europe and have partly become these cause founded this Society in 2009 in order to reactions like asthma. Due to the late flowering, established. combine efforts to: ragweed makes seasonal allergic patients suffer longer in the season. Ragweeds are monoecious with male and female • Inform about the plant and its negative impacts, inflorescences on the same plant. They are wind • Enhance collaboration, research, and Common ragweed (A. artemisiifolia) is also a bad pollinated and flower in late summer and autumn. In development of measures, promote an efficiently agricultural weed that reduces yield in many crops Europe, Ambrosia artemisiifolia is common in the control against the plant. and is difficult to control. Pannonian Basin, the Balkans, Italy and France. In other countries like Austria and Germany, the plant is still spreading and likely to become more widespread in the near future. Measures analysis of ragweed pollens reveals that the plant is present along the 45th parallel either in North America or Europe. A.artemisiifolia A.tenuifolia A.trifida A.psilostachya Because of the large negative impacts it causes, ragweed has been studied intensively by scientists. Research has focused on the biology, the distribution of the plant and its pollen, on the allergy it causes, on other impacts and on methods to efficiently reduce its spread.
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Septoria Epambrosiae Sp. Nov. on Ambrosia Artemisiifolia (Common Ragweed)
ZOBODAT - www.zobodat.at Zoologisch-Botanische Datenbank/Zoological-Botanical Database Digitale Literatur/Digital Literature Zeitschrift/Journal: Sydowia Jahr/Year: 2001 Band/Volume: 53 Autor(en)/Author(s): Farr David F., Castlebury Lisa A. Artikel/Article: Septoria epambrosiae sp. nov. on Ambrosia artemisiifolia (common ragweed). 81-92 ©Verlag Ferdinand Berger & Söhne Ges.m.b.H., Horn, Austria, download unter www.biologiezentrum.at Septoria epambrosiae sp. nov. on Ambrosia artemisiifolia (common ragweed) David F. Farr & Lisa A. Castlebury Systematic Botany and Mycology Laboratory, USDA, Agricultural Research Service, Beltsville, Maryland 20705-2350 Farr, D. F. & L. A. Castelbury (2001). Septoria epambrosiae sp. nov. on Ambrosia artemisiifolia (common ragweed). - Sydowia 53(1): 81-92. Recently an unidentified Septoria was reported to be pathogenic on Ambrosia artemisiifolia L. (common ragweed) in Hungary and may have potential as a biocontrol agent for this noxious weed. After reviewing the two previously known species of Septoria on Ambrosia (Asteraceae), the Septoria from Hungary is described as a new species, Septoria epambrosiae. A synopsis of the three species of Septoria on Ambrosia is provided. Based on a molecular analyses of the nSSU and complete ITS region of the rDNA, the taxonomic relationships of S. epambrosiae are determined. Septoria epambrosiae clusters with members of the Dothideales with the teleomorph most likely a species of Mycosphaerella. Keywords: Ascomycetes, molecular taxonomy, biocontrol, taxonomy. Ragweed {Ambrosia artemisiifolia L., Asteraceae) is a noxious weed common throughout temperate regions that produces quantities of pollen to which many humans have an allergic reaction, often referred to as hay fever. A species of Septoria Sacc. in Hungary was discovered and tested as a potential biocontrol agent of ragweed (Bohär & Schwarczinger, 1999).
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(<I>Ambrosia Artemisiifolia</I> L.) In
University of Nebraska - Lincoln DigitalCommons@University of Nebraska - Lincoln Theses, Dissertations, and Student Research in Agronomy and Horticulture Department Agronomy and Horticulture Spring 4-2017 Emergence, Competition, and Management of Glyphosate-Resistant Common Ragweed (Ambrosia artemisiifolia L.) in Nebraska Soybean Ethann R. Barnes University of Nebraska-Lincoln Follow this and additional works at: http://digitalcommons.unl.edu/agronhortdiss Part of the Agricultural Science Commons, Agriculture Commons, Agronomy and Crop Sciences Commons, Botany Commons, Horticulture Commons, Other Plant Sciences Commons, and the Plant Biology Commons Barnes, Ethann R., "Emergence, Competition, and Management of Glyphosate-Resistant Common Ragweed (Ambrosia artemisiifolia L.) in Nebraska Soybean" (2017). Theses, Dissertations, and Student Research in Agronomy and Horticulture. 120. http://digitalcommons.unl.edu/agronhortdiss/120 This Article is brought to you for free and open access by the Agronomy and Horticulture Department at DigitalCommons@University of Nebraska - Lincoln. It has been accepted for inclusion in Theses, Dissertations, and Student Research in Agronomy and Horticulture by an authorized administrator of DigitalCommons@University of Nebraska - Lincoln. EMERGENCE, COMPETITION, AND MANAGEMENT OF GLYPHOSATE- RESISTANT COMMON RAGWEED (Ambrosia artemisiifolia L.) IN NEBRASKA SOYBEAN by Ethann Robert Barnes A THESIS Presented to the Faculty of The Graduate College at the University of Nebraska In Partial Fulfillment of Requirements For the Degree of Master of Science Major: Agronomy Under the Supervision of Professor Amit J. Jhala Lincoln, Nebraska May, 2017 EMERGENCE, COMPETITION, AND MANAGEMENT OF GLYPHOSATE- RESISTANT COMMON RAGWEED (Ambrosia artemisiifolia L.) IN NEBRASKA SOYBEAN Ethann R. Barnes, M.S. University of Nebraska, 2017 Advisor: Amit J. Jhala Common ragweed (Ambrosia artemisiifolia L.) is a competitive annual broadleaf weed in soybean (Glycine max) production fields throughout North America.
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The History of Ragweed in the World - 489
Makra et al.: The history of ragweed in the world - 489 - THE HISTORY OF RAGWEED IN THE WORLD MAKRA, L.1* – MATYASOVSZKY, I.2 – HUFNAGEL, L.3 – TUSNÁDY, G.4 1Department of Climatology and Landscape Ecology, University of Szeged, HU-6701 Szeged, P.O.B. 653, Hungary; (phone: +37-70-294-1310; fax: +36-62-544-624) 2Department of Meteorology, Eötvös Loránd University, HU-1117 Budapest, Pázmány Péter st. 1/A, Hungary; (phone: +36-30-480-1832) 3Adaptation to Climate Change Research Group, Corvinus University of Budapest, Hungary; (phone: +36-1-294-9875) 4Mathematical Institute of the Hungarian Academy of Sciences, HU-1364 Budapest, P.O.B. 127, Hungary; (phone: +36-1-483-8324) *Corresponding author e-mail: [email protected] (Received 4th Sept 2014; accepted 1st Dec 2014) Abstract. The aim of the study is to provide a survey on the history of ragweed worldwide. Its climate dependence, impacts in agriculture, health effects and social costs are also presented. In Europe common ragweed (Ambrosia artemisiifolia) is predominant of all Ambrosia species that is supported by population genetic data. The most important habitat areas of ragweed and the highest pollen concentrations occur, in decreasing order of the pollen levels (1) in the south-western part of the European Russia, (2) in the southern and eastern parts of Ukraine, (3) in the Pannonian Plain in Central Europe, (4) in the Rhône- Alpes region in France, furthermore (5) in the Po River valley in Italy. Besides Europe, ragweed occurs in China, India, Japan and in other Asian countries, furthermore in Australia and the Unites States of America.
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Ambrosia Artemisiifolia
EuropeanBlackwell Publishing Ltd and Mediterranean Plant Protection Organization PM 9/7 (1) Organisation Européenne et Méditerranéenne pour la Protection des Plantes National regulatory control systems Systèmes de lutte nationaux réglementaires Ambrosia artemisiifolia Speciﬁc scope Speciﬁc approval and amendment This standard describes the procedures for control of Ambrosia First approved in 2008-09. artemisiifolia. measures: raising awareness, monitoring, regulating, management Introduction measures and further research. Ambrosia artemisiifolia (Compositae) is an introduced exotic EPPO member countries at risk are advised to prepare a pest of the EPPO region originating from North America. contingency plan for the surveillance, eradication and containment Within EPPO, the question whether this species should be of this pest. recommended for regulation as a quarantine pest has been This standard presents the basis of a national regulatory extensively debated. Although member countries agreed that control system for the monitoring, eradication and containment this plant presented a threat mainly because of human health of A. artemisiifolia and describes: problems, no consensus could be reached that the plant be − Elements of the monitoring programme that should be regulated as a quarantine pest. However, it should be noted that conducted to detect a new infestation or to delimit an infested Ambrosia artemisiifolia may have severe impacts on certain area crops. While A. artemisiifolia is already widespread in several − Measures aiming at eradicating recently detected populations European countries such as France, Hungary and Italy, it is still (including an incursion) absent or rare in other parts of Europe but is beginning to − Containment measures: to prevent further spread in a country spread, for example in Austria, Germany and Switzerland.
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Common Ragweed (Ambrosia Artemisiifolia L.) Interference with Soybean in Nebraska
Published online January 18, 2018 PEST INTEracTIONS IN AGRONOMIC SYSTEMS Common Ragweed (Ambrosia artemisiifolia L.) Interference with Soybean in Nebraska Ethann R. Barnes,* Amit J. Jhala, Stevan Z. Knezevic, Peter H. Sikkema, John L. Lindquist* ABSTracT ommon ragweed (Ambrosia artemisiifolia L.) is an herbaceous, annual weed, native to North America Common ragweed is a competitive weed in soybean fields in (Coble et al., 1981). Common ragweed seeds can north central United States and eastern Canada. The effect of Cremain viable in the soil for as long as 39 yr, allowing it to available soil water on the competitiveness of common ragweed survive in many environments (Bassett and Crompton 1975). in soybean hasn’t been determined. A field study was conducted Cold stratification is required for the seeds to germinate in 2015 and 2016 in Nebraska to assess common ragweed (Bazzaz 1970). Germination occurs near the soil surface in interference in soybean as affected by available soil water and early spring (Bazzaz 1970). Common ragweed plants have a common ragweed density. The experiment was arranged in a fibrous root system and can grow over 2 m in height (Bassett split-plot design with irrigation level as main plots and com- and Crompton 1975; Clewis et al., 2001). When grown in a mon ragweed density as subplots. Periodic crop and weed leaf non-competitive environment, a small (95 g fresh weight) and area index (LAI) and aboveground biomass were sampled and a large (2400 g fresh weight) common ragweed plant produced soybean yield was harvested. A model set was constructed using 3135 to 62,000 seeds, respectively (Dickerson and Sweet 1971).
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Common Ragweed
GWC-14 The Glyphosate, Weeds, and Crops Series Biology and Management of Common Ragweed Tom Jordan, Purdue University Glenn Nice, Purdue University Reid Smeda, University of Missouri Christy Sprague, Michigan State University Mark Loux, Ohio State University Bill Johnson, Purdue University Purdue Extension 1-888-EXT-INFO Glyphosate, Weeds, and Crops TheThe Glyphosate,Glyphosate, Weeds,Weeds, andand CropsCrops SeriesSeries This publication was reviewed and endorsed by the Glyphosate, Weeds, and Crops Group. Members are university weed scientists from major corn and soybean producing states who have been working on weed management in glyphosate-resistant cropping systems. To see other titles in the Glyphosate, Weeds, and Crops series, please visit the Purdue Extension Education Store: www.extension.purdue.edu/store. Other publications in this series and additional information and resources are available on the Glyphosate, Weeds, and Crops Group Web site: www. glyphosateweedscrops.org. University of Delaware North Dakota State University Mark VanGessel Jeff Stachler University of Guelph Richard Zollinger Peter Sikkema The Ohio State University University of Illinois Mark Loux Aaron Hager The Pennsylvania State University Iowa State University Bill Curran Bob Hartzler Purdue University Mike Owen Thomas Bauman Kansas State University Bill Johnson Dallas Peterson Tom Jordan Michigan State University Glenn Nice Wes Everman Steve Weller Christy Sprague South Dakota State University University of Minnesota Mike Moechnig Jeff Gunsolus Southern Illinois University University of Missouri Bryan Young Kevin Bradley University of Wisconsin Reid Smeda Chris Boerboom University of Nebraska Mark Bernards Stevan Knezevic Financial support for developing, printing, and distributing this publication was provided by BASF, Bayer Crop Science, Dow AgroSciences, Dupont, Illinois Soybean Association, Indiana Soybean Alliance, Monsanto, Syngenta, Valent USA, and USDA North Central IPM Competitive Grants Program.
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Ambrosia Artemisiifolia (Asteraceae)
EPPO, 2000 Mini data sheet on Ambrosia artemisiifolia Added in 2000 – Deleted in 2000 Reasons for deletion The Panel on Phytosanitary Measures considered that the weed Ambrosia artemisiifolia did not have the characteristics of an alert. In 2000, it was therefore removed from the EPPO Alert List. Ambrosia artemisiifolia (Asteraceae) - common ragweed Why The Panel on Phytosanitary Measures is currently discussing the potential quarantine status of weeds, and Ambrosia artemisiifolia was retained as a potential candidate. Where It is native to North America and has spread from there to many other areas in the world (except perhaps Africa). Europe: Austria, Belgium, Croatia, Czechia, France, Germany, Hungary, Italy, Lithuania, Luxemburg, Moldova, Poland, Portugal, Romania, Russia (Krasnodar territory), Slovakia, Sweden, Switzerland, Turkey, UK, Ukraine, Yugoslavia (at least Serbia). Asia: Azerbaijan, China (Yangtze river valley, Liaoning), Japan, Kazakhstan, India, Korea, Russia (Primorski territory), Taiwan, Turkey. Africa: Mauritius. North America: Canada (in all provinces, but most common in southern Quebec and Ontario, very rare in British Columbia and Newfoundland, uncommon in prairie provinces and provinces of the Atlantic coast), Mexico, USA (eastern, north central states, Hawaii). Central America & Caribbean: Cuba, Guadeloupe, Guatemala, Jamaica, Martinique. South America: Argentina, Bolivia, Brazil, Chile, Colombia, Paraguay, Peru, Uruguay. Oceania: Australia, New Zealand. On which crops A. artemisiifolia can infest practically all field crops (cereals, maize, soybean, sunflower, rootcrops, etc.), meadows, pastures, orchards and vineyards, and also rangeland. However, it is commonest along waterways, roads, railways and in wasteland. Dissemination Fruits of A. artemisiifolia are dispersed by birds, melting snow, waterways and strong winds. Seeds of A. artemisiifolia are dispersed through exchanges of contaminated seed lots, forage and fodder.
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Annual Ragweed Theambrosia, Rabbit Horseweed and Or Its Asthma Control Plant Wildoryctolagus Dog Cuniculus Control Canisambrosia Familiaris Artemisiifolia
Department of Agriculture, Fisheries and Forestry Biosecurity Queensland Restricted invasive plant Annual ragweed TheAmbrosia, rabbit horseweed and or its asthma control plant WildOryctolagus dog cuniculus control CanisAmbrosia familiaris artemisiifolia Annual ragweed (also called ambrosia, horseweed or Legal requirements asthma plant) is a fast-growing plant introduced from North America. Annual ragweed is a categeory 3 restricted invasive plant under the Biosecurity Act 2014. It must not be given away, It can invade and suppress weak and overgrazed sold, or released into the environment. The Act requires pastures, reducing productivity. The pollen of this plant everyone to take all reasonable and practical steps to can cause health problems such as hay fever and can minimise the risks associated with invasive plants under aggravate asthma. their control. This is called a general biosecurity obligation (GBO). This fact sheet gives examples of how you can meet your GBO. At a local level, each local government must have a Where possible, check the source of hay and other biosecurity plan that covers invasive plants in its area. stockfeed before purchase. Also check the origin of This plan may include actions to be taken on certain stock (particularly horses, which are often associated species. Some of these actions may be required under with annual ragweed and its spread in coastal areas). local laws. Contact your local government for more Also check the origin of topsoil, which is a major source information. of seed. Description Mechanical control Where feasible, plants can be pulled by hand; however, Annual ragweed is an erect plant, 1–2 m high with slightly if anyone is prone to allergies, contact with flowering rough, fern-like leaves.
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Ambrosia Artemisiifolia) Populations
doi: 10.1111/j.1420-9101.2011.02404.x Genetic differentiation in life-history traits of introduced and native common ragweed (Ambrosia artemisiifolia) populations K. A. HODGINS & L. RIESEBERG Department of Botany, University of British Columbia, Vancouver, BC, Canada Keywords: Abstract Ambrosia artemisiifolia; Introduced species represent opportunities to observe evolution over contem- biological invasion; porary time scales, and as exotics encounter new environments, adaptive drought; responses can occur, potentially contributing to invasion. Here, we compare EICA hypothesis; 22 native North American populations and 12 introduced European popula- herbivory; tions of common ragweed (Ambrosia artemisiifolia) in five common gardens life-history trade-offs; (control, herbivory, light stress, nutrient stress and drought). We found light stress. evidence for improved growth and reproduction of the introduced populations in most environments, particularly in the light stress. However, under drought conditions, the introduced plants experienced more rapid wilting and mortality than their native counterparts, evidence consistent with a life- history trade-off between rapid growth and drought tolerance. Moreover, we found parallel latitudinal clines in flowering time and correlations between fitness components and the local climate of the source populations in both ranges. Together these data provide evidence for adaptation to local environ- mental conditions in the native and introduced range of common ragweed. There is a large body of research
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