21. A Mysterious Foe This article discusses the mysteries of plantpathogens and the diseases they cause. http://grounds-mag.com/ar/grounds_maintenance_mysterious_foe/

var towercount = 0; var buttoncount = 0; var vertbannercount = 0; var smsquarecount = 0; var rectanglecount = 0; var spotlightcount = 0; var vertrectanglecount = 0; var lgsquarecount = 0; var bannercount = 0; var halfbannercount = 0; Chemicals Equipment Irrigation Construction/Design ... Reprints A mysterious foe Eric Liskey Editor www.grounds-mag.com Mar 1, 2001 12:00 PM E-mail this article Plant pathogens often are more difficult for grounds managers to deal with than other types of pests. This may be due to the fact that you often can't actually see the pathogen itself. You may only see the symptoms, which can be difficult to define and also may closely resemble several different diseases. (How many possible causes can you think of for a dead patch of grass? Or dieback in a tree?) In other words, you may have to work a little harder to diagnose the problem correctly. Perhaps this relates to the human tendency to fear the mysterious. Diseases often seem to come out of nowhere or occur randomly. In fact, pathologists know better. If a disease shows up one year but not the next, there's usually a reason. Probably certain environmental conditions required by the pathogen occurred one year but not another. To give you a better grasp on new as well as ongoing disease problems, we're focusing this issue of

22. Plant Pathology PPWS 3104 plant diseases caused by nematodes; Diagnosis of abiotic conditions that causeplant diseases (or disorders); Miscellaneous plant pathogens protozoa, algae http://www.ppws.vt.edu/courses/ppws3104.htm

Plant Pathology PPWS 3104 General Introduction Semester: every fall Prerequisites: Biology 1005 and 1006, or equivalent. Instructor: Dr. Anton Baudoin, 417-A Price Hall, Tel: 231-5757 Description. Introduction to plant pathology as a science and a crop protection discipline. Plant disease diagnosis, biology and identification of plant disease causing agents, factors leading to disease build-up, and management of plant diseases. Diseases of specific crops will be studied as examples. The course contains 3 sections: Lecture, on general principles Laboratory exercises on techniques, diagnosis, etc. Guided self-study of diseases of crops of interest to individual students. Lecture Topics Overview of plant pathology; plant disease definition; crop losses; pathogenic agents. Plant disease diagnosis: principles (Koch's postulates) and practical procedures Disease symptoms, and what they tell us about causes Disease development; life cycles and disease cycles Overview of methods of plant disease control Fungal plant pathogens: characteristics, classification, identification Soilborne diseases caused by fungi Foliar diseases caused by fungi Prokaryotes: characteristics, classification, identification

23. A Plant Disease Video Image Resource An Interactive Videodisc Introduction to plant pathogens and diseases combinesonone screen-the videodisc images and database descriptions from A plant http://www.shopapspress.org/41426.html

Edited by Thomas A. Evans, Gail L. Schumann, and Frank H. Tainter SCROLL DOWN TO ORDER THIS TITLE. This resource is composed of three parts: a videodisc, a database, and a set of student lessons. The videodisc contains nearly 10,000 full-color plant disease images - compiled from Plant Disease journal, APS PRESS Compendia, APS PRESS slide sets, and private slide collections. The database contains records describing each image, together with retrieval software to find specific images. The student lessons combine text and images on-screen, allowing the student to study major pathogens at his or her own pace. ISBN 0-89054-142-6 For basic research, education, or extension You don't need an interactive computer system to conduct basic image research and viewing. With your personal computer, you can use the database to obtain a list of all slide images involving a given pathogen, disease, host, etc. Open any record within this list and you will see the description of the image, as well as a number indicating its location on the videodisc. By entering this number on your videodisc player, you can display the image on screen. For interactive educational use Now students can study plant pathogens and disease symptoms on their own-all at the touch of a computer key! An Interactive Videodisc Introduction to Plant Pathogens and Diseases combines-on one screen-the videodisc images and database descriptions from

24. New, Emerging, And Threatening Plant Diseases And Crop Biosecurity New plant diseases caused by fungal, bacterial and viral pathogens haveappeared at an alarming rate in Florida in the last two decades. http://edis.ifas.ufl.edu/BODY_PP112

New, Emerging, and Threatening Plant Diseases and Crop Biosecurity Tim Momol, Jim Marois, Bob McGovern, Pam Roberts and Gail Wisler Figure 1. Southern Plant Diagnostic Network (SPDN) "Educate to detect" SPDN: New Network for Crop Biosecurity UF/IFAS recently received a major grant award to help prevent "crop bioterrorism" by protecting crop plants from new introduction of pathogens, insects, nematodes, and weeds. Five land grant universities (Univeristy of California at Davis, Cornell University, University of Florida, Kansas State University, and Michigan State University), in the United States have been designated as the coordinators for their Plant Diagnostic Regional Centers for the U.S. Plant Disease Surveillance and Detection Network. A homeland security grant from the U.S. Department of Agriculture (USDA) is providing the initial funding for a new Southern Plant Diagnostic Network (SPDN) http://spdn.ifas.ufl.edu at the University of Florida (UF) coordinated by IFAS. The University of Florida established this network with 11 other southern states and one U.S. territory (Alabama, Arkansas, Georgia, Kentucky, Louisiana, Mississippi, North Carolina, Puerto Rico, South Carolina, Tennessee, Texas, Virginia -see Figure 1) to improve regional capabilities for rapid and accurate identification and diagnoses to safeguard against newly introduced and re-emerging pests and pathogens, genetically modified pathogens, pesticide-resistant pathogens, and natural changes in endemic organisms.

25. Florida Extension Plant Disease Clinic Network Many of the pathogens that cause plant diseases have the ability to exist as bothdiseasecausing microbes and often as saprophytes on plants or in soil. http://edis.ifas.ufl.edu/BODY_SR007

Florida Extension Plant Disease Clinic Network C.M. Stiles, M.T. Momol, P.D. Roberts, R. McMillan, R.E. Cullen, and G.W. Simone Plant Sample Submission and Diagnoses The primary role of the Florida Extension Plant Disease Clinic (FEPDC) network is to determine if symptoms in submitted plant samples involve an infectious causal agent, e.g. fungus, bacterium or virus. The FEPDC is a fee-based service provided to any Florida resident by the Plant Pathology Department of the Institute of Food and Agricultural Sciences (IFAS), University of Florida, in conjunction with the Cooperative Extension Service. The FEPDC network consists of four UF/IFAS laboratory facilities. The FEPDC is open from 8:00 AM to 12:00 PM and 1:00 to 5:00 PM Monday through Friday (except for University holidays). The FEPDC network consists of four UF/IFAS laboratory facilities located as follows: Gainesville: Florida Extension Plant Disease Clinic. P.O. Box 110830, U.F., Bldg. 78, Mowry Rd., University of Florida, Gainesville, FL 32611-0830. Note: For overnight mail or package delivery service (UPS, Fedex, etc.), be sure to include the physical street address: "UF, Bldg. 78, Mowry Rd." Phone: (352) 392-1795 or Suncom 622-1795, FAX: (352) 392-3438, E-mail:

26. LookSmart - Directory - Plant Pathology Research Labs And Institutes Society, The Ottawa society presents its history, membership details, featurearticles and publications regarding diseases and pathogens of plants. http://search.looksmart.com/p/browse/us1/us317914/us55998/us56029/us330303/us101

@import url(/css/us/style.css); @import url(/css/us/searchResult1.css); Home IN the directory this category YOU ARE HERE Home Sciences Botany Research Topics ... Plant Pathology Plant Pathology Research Labs and Institutes - Find laboratories, college research centers, and government institutes that study plant diseases. Directory Listings About American Phytopathological Society Organization devoted to the study and control of plant disease offers features, membership information and a plant pathology resource center. Biosupplies Australia Specializes on producing reagents for detection, characterization, and quantification of chemicals from plant cell surfaces and secretions. Canadian Phytopathological Society, The Ottawa society presents its history, membership details, feature articles and publications regarding diseases and pathogens of plants. In English or French. Mediterranean Phytopathological Union Organization for pathologists interested in Mediterranean plant diseases offers an event calendar, discussion forum and a membership application. New and Emerging Plant Diseases Project Lists fungal, viral, nematode and bacterial plant diseases by host, disease and pathogen. Primarily for agricultural producers and scientists.

27. Common Plant Diseases - Description And Treatment Since killing the pathogens is difficult or impossible, prevention when propogatingand growing your plants, you can prevent a lot of diseases from taking http://www.dgsgardening.btinternet.co.uk/disease.htm

/* Static Top Menu Script By Constantin Kuznetsov Jr. (GoldenFox@bigfoot.com) Featured on Dynamicdrive.com For full source code and installation instructions to this script, visit Dynamicdrive.com */ Down Garden Services PLANT DISEASES Plants can suffer from bacterial, viral and fungal attack just as we can ourselves. The organisms themselves (pathogens) are different, but at the microbial level the infection is much the same since one cell is as good a host as another. No matter which part of the plant is attacked the effect is usually to weaken or kill it. By infecting the leaves the plant's ability to produce its food is reduced. Some pathogens block the vessels in the stems which supply the leaves and by attacking the roots, the uptake of water and nutrients is reduced or stopped completely. Sometimes the 'infection' is symbiotic where both organisms derive a benifit. A good example of this is the nitrogen fixing bacteria which reside in nodules on the roots of leguminous plants (the pea family), the plant provides food and protection, the bacteria takes nitrogen from the air and converts it to a form usable by the host.

28. Poinsettia Diseases & Control Poinsettia diseases and subsequent plant losses due to fungal pathogens cause moredamage and monetary loss than do bacterial pathogens, but where bacterial http://aggie-horticulture.tamu.edu/greenhouse/nursery/guides/poinsettia/disease.

Diseases represent a serious hazard to the production of a quality poinsettia crop. Control of poinsettia diseases should be based on disease prevention because once disease producing organisms invade plant tissue, control is much more difficult and expensive and frequently not too successful. Growers should become familiar with the common poinsettia diseases and for each disease they should have a basic understanding of: (I) the causal organism involved; (II) likely sources of pathogen introduction; (III) conditions required for plant infection and disease development; (IV) and, effective disease control measures. (I) Causal organisms of poinsettia diseases Bacterial and fungal pathogens are most commonly involved in damage to commercial poinsettia production in Texas. Poinsettia diseases and subsequent plant losses due to fungal pathogens cause more damage and monetary loss than do bacterial pathogens, but where bacterial diseases are severe, extensive losses can occur. Both bacteria and fungi are microscopic in most forms and because of this, it is impossible to detect their presence until plant infection and subsequent plant deterioration occurs. Therefore, it is important to anticipate potential disease problems and to modify the greenhouse environment or initiate preventive chemical control to minimize plant loss to disease. (II) Sources of pathogen introduction Potential poinsettia pathogens can be introduced into a greenhouse in several ways. Some pathogens, such as

29. Natural Disease Control—A Common-sense Approach To Plant First Aid Fungi are the cause of the largest number of plant diseases, while viruses oftencause those with the most severe symptoms. Many pathogens cause only cosmetic http://www.bbg.org/gar2/topics/sustainable/handbooks/naturaldisease/primer.html

@import "/common/bbg.css"; @import "/common/filter.css"; Skip navigation Brooklyn Botantic Garden Search for: Visiting Gardening Education Research ... Shop Gardening Gardening Techniques Garden Design Great Plants Gardening for Wildlife ... Gardening Techniques See Also BBG Handbooks BBG's Online Library of Gardening Information Now at BBG June Is Rose Month Buy This Book Table of Contents A Plant Disease Primer by Miranda Smith Plants can also develop disorders. These are not brought on by pathogens, but rather by environmental conditions and stresses. Common examples include blossom end rot of tomatoes and peppers, and tip burn of lettuce, both of which are caused by a calcium deficiency in combination with fluctuating moisture conditions and fluctuating light levels, respectively. In most cases, the symptoms of disorders are confusingly similar to those resulting from pathogenic diseases. Plant Defenses Unlike animals, plants don't have an immune system or disease-fighting white blood cells. Instead, they have developed other mechanisms to escape or survive the diseases that attack them. Some plants are simply genetically incompatible with, or immune to, certain diseases. A corn plant can't host tobacco mosaic virus (TMV), a common tomato disease, for example, just as tomatoes can't host the corn disease smut. It is also possible that a particular cultivar, variety, or even an individual plant is immune to a disease that attacks other members of its species, generally because of subtle differences in the genetic makeup of the various plants.

30. Plant Diseases, UM Libraries guide was created to help students find journal articles on particular plant diseases. havebeen included as aids in identifying hosts and pathogens and their http://www.lib.umd.edu/MCK/GUIDES/plant_diseases.html

Guides to Info. Resources Agriculture and Natural Resources PLANT DISEASES Scope: This guide was created to help students find journal articles on particular plant diseases. Therefore, no attempt has been made to present an exhaustive list of reference materials in the field. Several handbooks have been included as aids in identifying hosts and pathogens and their common and scientific names. Email the subject area specialist at bethr (@umd.edu) or call 405-9666 for more information. Table of Contents Finding books on a topic Handbooks and Dictionaries Bibliography Indexes and Abstracting Services Specific to Plant Diseases ... Internet Resources Finding books on a topic To locate books, search the Catalog . Books or other works can be located using a subject, author, title or other search types. Examples of terms you may wish to use to retrieve books on the subject of plant diseases are: plant pathology plant viruses phytopathology These terms can also be used to locate materials in other files, such as Uncover , a periodical index searchable like the online catalog, but with additional commands and features. Holdings in UM libraries are indicated. For more assistance with this, please

31. Tropical Plant Pathology Laboratories will consist of field observations of plant disease, microscopic observationsof diseases and pathogens, and methods for the culture and isolation http://www.uhh.hawaii.edu/~shintaku/tropical.htm

Home Page Up [ Tropical Plant Pathology ] Applied Microbiology Plant Disease Diagnosis Agricultural Genetics Tropical Plant Pathology (PPAT301) Instructor: Dr. Michael Shintaku Office/Office hours: CAB 106/by appointment Required Text: Plant Pathology , 4th ed., George N. Agrios This course will prepare the student to understand the role of plant pathogens in crop production. Diseases are often a major limiting factor in crop production, and understanding the biology of the pathogen(s) will enable the grower to effectively manage disease problems. In addition, this course offers insight into the relationships between plants and microbes. Laboratories will consist of field observations of plant disease, microscopic observations of diseases and pathogens, and methods for the culture and isolation of plant pathogens. LECTURE TOPICS: SUGG. READING Introduction Basic concepts in plant pathology 3-23 (concepts, causes and history) Nature, causes and types of disease Beneficial interactions Fungi as plant pathogens 245-260 (fungi as pathogens) 295-298 (powdery mildews) Life cycles of the fungi: Ascomycetes 324-331 (anthracnose) Life cycles of the fungi: Imperfect fungi EXAM Life cycles of the fungi: Basidiomycetes 368-381 (rusts) Life cycles of the fungi: Basidiomycetes 382-389 (smuts) Fungal diseases 307-309 (sigatoka) 359-367 (post-harvest losses) 359-350 (Dutch Elm disease) Life cycles of the Oomycetes 266-283 (Pythium and Phytophthora Life cycles of the Oomycetes Parasitism and disease development 45-62 (disease cycle)

32. Biology And Management Of Plant Diseases And Insect Pests Research plant Pathologist The objective of our research is to investigate thebiology and control of soilborne fungal pathogens causing root diseases of http://www.ars-grin.gov/ars/PacWest/Corvallis/hcrl/biomanage.htm

Biology and Management of Plant Diseases and Insect Pests Robert Linderman, Research Plant Pathologist The objective of our research is to investigate the biology and control of soilborne fungal pathogens causing root diseases of horticultural crops, especially floral and nursery crops. Emphasis is placed on cultural and biological control strategies involving interactions between pathogens, mycorrhizal fungi, and bacteria in the rhizosphere of greenhouse and nursery crops. Joyce Loper, Research Plant Pathologist Our research program develops biological control strategies for managing plant diseases in agriculture. Our projects range from field studies evaluating the success of biological control agents to laboratory experiments evaluating the molecular basis of biological control. Through these projects, we are developing knowledge of the processes by which naturally-occurring bacteria that live on plant surfaces suppress plant diseases. Pseudomonas fluorescens Pf-5 website Walt Mahaffee, Research Plant Pathologist The overall goal of our research is to develop integrated pest management systems for small fruit crops, nursery crops, and hops. Our objective is to reduce synthetic chemical inputs through augmentation or replacement with biologically based control strategies. Pathogen epidemiology and the microbial ecology of plant surfaces are being investigated to understand how to better implement biological control strategies for control of plant pathogens. Our research on small fruit crops focuses on powdery mildew (Uncinula necator) and gray mold fruit rot (Botrytis cinerea). The nursery crops component of our program includes the discovery and development of biological control agents against Botrytis spp. and the use of compost for disease control.

33. IOBC/WPRS - EFPP WORKING GROUP: WORKING GROUPS BIOLOGICAL CONTROL OF FUNGAL AND BACTERIAL plant pathogens. Managementof plant diseases and arthropod pests by BCAs and their. http://www.agri.gov.il/Depts/IOBCPP/JGroup/IOBCWPRSintegration1st.html

WORKING GROUPS: BIOLOGICAL CONTROL OF FUNGAL AND BACTERIAL PLANT PATHOGENS INTEGRATED CONTROL IN PROTECTED CROPS, TEMPERATE CLIMATE Integration 2004 S. Michele all’Adige, Italy Meeting of the WGs: Management of plant diseases and arthropod pests by BCAs and their integration in agricultural systems S. Michele all’Adige, Trentino, Italy 9-13 June 2004 SECOND CIRCULAR Registration and Accommodation Call for abstracts Istituto Agrario di S. Michele all’Adige (IASMA), Italy Centre for Research and Development of crop protection with low environment and consumer-health impact (SAFECROP) IOBC/WPRS WORKING GROUPS: BIOLOGICAL CONTROL OF FUNGAL AND BACTERIAL PLANT PATHOGENS CONVENOR : YIGAL ELAD, Dept. of Plant Pathology, The Volcani Center, Bet Dagan Israel email : elady@volcani.agri.gov.il, Tel. ++972 3 9683539, Fax ++972 3 9683688 (on sabbatical leave during 2003, email during that period y.elad@sbc.bbk.ac.uk) Former convenor: Nyckle J. Fokkema, IPO, Wageningen, The Netherlands WG Management Committee: C. Alabouvette , INRA, Dijon, France;

34. PPA  --  Plant Pathology The causes, effects, control and nature of plant diseases will be studied; the laboratorywill expose students to common diseases and pathogens discussed in http://www.uky.edu/Registrar/bull0203/courses/ppa.html

University of Kentucky Undergraduate Bulletin PPA    Plant Pathology PPA 395 INDEPENDENT STUDY IN PLANT PATHOLOGY.(3-4) Independent study in Plant Pathology under the supervision of a faculty member. Prereq: Consent of appropriate instructor. PPA 400G PRINCIPLES OF PLANT PATHOLOGY.(3) To present students with the principles of plant pathology. The causes, effects, control and nature of plant diseases will be studied; the laboratory will expose students to common diseases and pathogens discussed in lecture. Emphasis will be given to diseases important in Kentucky. Lecture, two hours; laboratory, two hours. Prereq: One semester of botany (e.g. BIO 351) and microbiology (e.g. BIO 108/109) or consent of instructor. PPA 410 FOREST PATHOLOGY.(3) Symptomatology, epidemiology, host-pathogen relations and control of selected diseases of forest trees. Lecture, two hours; laboratory, two hours. Prereq: BIO 106 and 107 or BIO 351 or one equivalent semester of botany. (Same as FOR 410.) PPA 601 SPECIAL TOPICS IN MOLECULAR AND CELLULAR GENETICS.(1)

35. The Nature Of Diseases In Plants Part I. Basic Biology and Control of plant diseases Causes and spread of plantdisease; How pathogens attack plants; How plants defend against pathogens; http://www.cplpress.com/contents/C200.htm

The Nature of Diseases in Plants Robert P Scheffer Cambridge University Press April 1997 Hardback ISBN 521 48247 X This book explains how plants get diseases. It covers the origins and evolution of parasites and shows how the great plant epidemics developed. The basic premise of the book is that the conditions favouring disease are inherent in agriculture and that diseases become destructive because of human activities. It also deals with the mechanisms whereby people have dealt with plant diseases in history. Included in the book are the natural histories of some of the most damaging plant diseases, worldwide, with discussions of why each became destructive. Diseases are grouped according to the most significant factors in the development of epidemics: which in every case has been due to a human factor. Discussion of each model disease proceeds from observable facts to more complex concepts; thus even the reader with little knowledge of plant pathology should find the book easily understandable. The contents are as follows: Part I. Basic Biology and Control of Plant Diseases:

36. Plant Pathology Research Biological control of soilborne plant diseases using naturally occurring beneficialfungi with activity against a number of key fruit and vegetable pathogens. http://www.lincoln.ac.nz/spes/research/pathres.htm

This site requires Javascript to be enabled. Soil, Plant and Ecological Sciences Plant Pathology Research Soil, Plant and Ecological Sciences Homepage Division Home Page The Plant Pathology Research Group has an active research programme with a strong emphasis on linkage of laboratory studies with field experimentation. Research is conducted on a diverse range of crops (arable and vegetable crops, fruit and nut trees, grapevines) and across a number of science disciplines (molecular biology, mycology, microbiology, biochemistry). Research projects conducted in the group covers aspects of disease diagnosis, pathogen biology, plant disease epidemiology, molecular biology of pathogens, disease control methods, in particular, biological control and the development of integrated disease management systems. Current Research Focus Biological control of soil-borne plant diseases using naturally occurring beneficial fungi and bacteria.

37. The Environmental Literacy Council - Plant Diseases a new environment, can make them more susceptible to known and new pathogens. flowers,is due in large part to understanding and management of plant diseases. http://www.enviroliteracy.org/article.php/309.html

Home About ELC Site Map Contact Us ... Food Plant Diseases Some diseases limit what can be grown in certain areas. Growing plants, including new varieties, such as apple trees in a new environment, can make them more susceptible to known and new pathogens. The abundance, quality, and even availability of plants used for food, feed (food for animals) and natural resources, such as trees, grasses and flowers, is due in large part to understanding and management of plant diseases. Vegetable MD Online This Cornell University site provides fact sheets on vegetable diseases and the latest disease management guidelines. Searchable by crop, the fact sheets list environmental factors affecting disease development and common control methods. The Plant Pathology Internet Guidebook An extensive collection of information on plant pathologies, this site catalogues annotated links on topics such as IPM, biotech, pesticides, nematodes, and weeds, in useful formats like databases, publications, and glossaries. Plant Pathology: Past to Present This illustrated book provides a history of plants and the diseases that affect them, from the smut that infected the wheat of ancient Babylonia to the "blight" that killed American chestnut trees in the 1920s. This storybook discusses the different types of plant pathogens - viruses, parasitic bacteria, fungi (the most common cause of disease in plants). Ohio State University: Plant Facts Plant Diseases Announcements Produced in collaboration with the Federation of American Scientists, this searchable archive of the emerging plant disease announcements is provided by AgNIC. The list may be viewed chronologically, by subject, or alphabetical order.

38. CABI Publishing - Online Bookshop plant pathogens JM.Waller and PF.Cannon 10 Bacteria and plant Disease G.Saddler11 Virus diseases Revised by JM.Waller 12 Phytoplasma plant pathogens P.Jones http://www.cabi-publishing.org/Bookshop/Readingroom/085199458X.asp

Submit a Book Proposal Write a Review Inspection Copies Check Order ... Publishing Book Details Plant Pathologists' Pocketbook, 3rd Edition Edited by J M Waller, CABI Bioscience, Egham, UK, J M Lenné, International CropsResearch Institute for the Semi-Arid Tropics (ICRISAT), India and S J Waller Publication Date: November 2001 Number of Pages: 528 Pages Binding: Hardback ISBN: 085199458X Contributors Preface to the 3rd Edition Part I: Recognition and Evaluation of Plant Diseases Landmarks in Plant Pathology Some Major Plant Diseases J.M.Lenné Surveys and Sampling M.Holderness Disease and Yield Loss Assessment P.S.Teng and W.C.James Postharvest Diseases Revised by J.M.Waller General Bibliography of Plant Pathology Compiled by J.M.Waller Bibliography of Crop and Plant Diseases Compiled by J.M.Waller Collection and Dispatch of Plant Material J.M.Waller and B.J.Ritchie Part 2: Causes of Plant Disease Fungi as Plant Pathogens J.M.Waller and P.F.Cannon

39. Plants, Pathogens, And People: A Web Site To Improve Student Awareness Of Agricu topics relating to the social impacts of historically important plant diseases. Onour site, plants, pathogens, and People, plant disease epidemics are used as http://www.ispp-itsymposium.org.nz/papers/submiss_7/

Plants, Pathogens, and People: A Web Site to Improve Student Awareness of Agricultural Science Darin M. Eastburn , Cleora J. D’Arcy, and Bertram C. Bruce University of Illinois at Urbana-Champaign U.S.A. Introduction Agricultural issues include not only the production of food, feed, and fiber products, but also issues such as food safety, environmental quality, and use of biotechnology. People have to make decisions on these issues, which directly impact their lives. However, in the U.S.A. only two percent of the population is directly involved in production agriculture, so few Americans have the information needed to make these decisions soundly, a problem known as agricultural illiteracy. In order to increase student's understanding of agricultural/science related issues we have developed a World Wide Web site that addresses topics relating to the social impacts of historically important plant diseases. On our site, Plants, Pathogens, and People , plant disease epidemics are used as case studies to illustrate important issues that involve agriculture. These case studies expose undergraduate and high school students to scientific and societal issues relating to agriculture, and through this exposure to increase the students’ understanding of the agricultural system. Depending on the intent of the instructors who use the materials on this site, the focus can be on the issues and how they pertain to the particular field of study (e.g. biology, history, health), or on the agricultural system itself. The site also gives students a better appreciation for the scientific process and methods of experimentation. Currently the site allows students to explore the topics of late blight and the Irish potato famine, and Dutch elm disease and the decline of the American elm. Additional case studies will be added in the near future.

40. Plant Pathology 305 Main Page viruses, fungi, nematodes and other organisms as plant pathogens; The role of theenvironment in disease development; Selected plant diseases; Methods used in http://ag.arizona.edu/PLP/courses/plp305/

FALL 2003 Tues. and Thur. 11:00 a.m.-12:15 p.m., Marley 230 Instructor: Mary W. Olsen, Marley 741E 626-2681; E-mail: molsen@ag.arizona.edu Office Hours: TBA Course Objectives Grading Policy Textbooks Related links ... Lecture and Exam Schedule Course Objectives: To become familiar with: Bacteria, viruses, fungi, nematodes and other organisms as plant pathogens The role of the environment in disease development Selected plant diseases Methods used in identification of plant pathogens Disease diagnosis Principles of disease management Mechanisms of pathogen invasion and plant defense Texts: Optional: Agrios, G.N. Plant Pathology, 4th. Edition. 1996 The above book is on 2 hour reserve in the main library (621-2348). Expectations: Students are expected to attend all classes. Exams and Grading: Final numerical grades are calculated as a percentage of total points received by each student out of 500 possible points. There will be four exams and a final exam each worth 100 points. Letter grades will be determined as follows: A B C D E less than 60% Incomplete Grades: Incomplete grades will be given only under special circumstances according to the university policy as stated on page 26 of "The University of Arizona Record 98-99 General Academic Manual".

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