1. Nonindigenous Plant Pathogens Threaten U.S. Crops And Forests Why pay retail when you can save at Half? Always find low prices on books by Karl Maramorosch and a great selection of new used books. http://www.apsnet.org/online/feature/exotic

Discussion Section Image Slide Show (download PDF) Press Release ... Features Interested in contributing an APS net Feature? Have a comment? Please contact Jean Ristaino, APS net Feature Editor. Feature Story October 1 through October 31, 2001 What are the Nonindigenous Plant Pathogens that Threaten U.S. Crops and Forests? L. V. Madden, Department of Plant Pathology, Ohio State University, Wooster, OH 44691 ( madden.1@osu.edu Background Fig. 1. Dark brown or reddish lesions of soybean rust (courtesy G. L. Hartman) (click image for larger view U.S. crops are susceptible to a large number of diseases caused by fungi, oomycetes, viruses, bacteria, phytoplasmas, and nematodes. Losses due to plant diseases have been estimated to be as high as $30 billion per year (20). Fortunately, not all pathogens of a given crop currently are present in the U.S. Perusal of any Compendium of Plant Disease published by the American Phytopathological Society (APS) will quickly show that there are several serious pathogens that have not yet arrived or have not become established in this country. Other important plant pathogens are found in only limited areas within the country, such that most of the crop is not affected. One example is soybean rust, caused by the fungus Phakopsora pachyrhizi (Figs. 1 and 2). Yield reductions of 10 to 30% on a regional basis are typical in areas where the Asiatic strain is found (27), and yield reductions of over 90% (relative to attainable yields) have been reported for individual fields (14,28). The pathogen has been in Puerto Rico for some time, but the strain is less aggressive than the Asiatic one. However, the Asiatic strain is now in South America.

2. Plant Pathogens The Biocontrol of plant diseases Laboratory (BPDL) is based at the Beltsville discoverand improve methods for biological control of plant pathogens and weeds http://agrifor.ac.uk/browse/cabi/detail/920d83863a69a2d3a2c00e1b388cbb6e.html

plant pathogens [up] Related topics: broader pathogens other plant diseases plant pathology plant pests narrower plant pathogenic bacteria plant viruses Biocontrol of Plant Diseases Laboratory (BPDL) The Biocontrol of Plant Diseases Laboratory (BPDL) is based at the Beltsville Agricultural Research Center (BARC) and is part of the US Department of Agriculture (USDA) Agricultural Research Service (ARS). The Laboratory "carries out basic and applied research to discover and improve methods for biological control of plant pathogens and weeds using beneficial microbes." Information is provided on the BPDL, it's staff, aims and research activities. A list of recent publications by staff of the Laboratory is available, and a resume of recent research accomplishments is also provided. A collection of links to related web resources is provided. This site also hosts a selection of plant biocontrol FAQ's aimed at children. USA biological control government organizations plant disease control ... British Society for Plant Pathology (BSPP) The British Society for Plant Pathology (BSPP) is a UK organization for the study and advancement of plant pathology. Their site contains details of membership, contact information and journal publications. The site hosts web pages for special interest groups of the Society, several of which provide information on current work in specific areas. Some have full text reports and abstracts of conference papers which can be viewed. A diary of meetings is maintained. New Disease Reports, an online global reporting service for new and significant plant disease situations, was launched in January 2000.

3. Page Not Found Or Moved Database of fungal pathogens on trees, shrubs, and herbaceous plants. Search by pathogen, host or recording authority. http://www.landcare.cri.nz/science/nzpddb/

QUICK SEARCH document.write("") Search Tips We have recently updated our web site The page you are looking for has either been moved, has a new name, or is temporarily unavailable. Please try the following: Use the search box below By default an "OR" search is performed. For example, searching for possum fertility will return documents containing either "possum" or "fertility" or both. If you're looking for more than one word in a document, place the word "AND" between the words. For example, if you're looking for documents which contain both possum and fertility, search for possum and fertility. To find a document with the exact phrase possum fertility enclose the query in quotes. ie: " possum fertility ". If you typed the page address in the Address bar, make sure that it is spelled correctly. Open the www.LandcareResearch.co.nz home page, and then look for links to the information you want. Try our FAQ - Frequently Asked Questions - section.

4. Untitled Document Resources, activities and dialogue relating to the biology, history, economic importance, and other aspects of plant diseases. Developed by University of Illinois, U.S. http://nautilus.outreach.uiuc.edu/ppp/

window.location.href = "http://www.ppp.uiuc.edu/";

5. Review Of Plant Pathology - The Online Abstracts Database For Plant Pathology Re Print and online journal on diseases of crop plants, ornamentals and forest trees caused by range of pathogens, nonparasitic diseases and mycorrhizas. Includes content search, abstracts (1992 to present), and registration form for a free trial subscription. http://www.cabi.org/Publishing/Products/JOURNALS/Abstract/RPP/Index.asp

Books CD-ROM Internet Journals Review of Plant Pathology In print and via the Internet Search Abstracts (registered users only) Register for Internet Access (subscribers only) Annual Subscription Rates Register for Free Trial View a Sample Copy (in PDF format) How to Order Advertising Rates (in PDF format) Features: Records added to print each year: 10,000 Journal Articles, Reports, Conferences and Books Quarterly Author, Subject and Serials Cited Indexes First issued: 1922 Monthly in print Weekly updates for Internet version 10-year backfile for Internet version Subject Coverage: Review of Plant Pathology covers the following aspects, Diseases of crop plants, ornamental plants and forest trees caused by fungi, bacteria, viruses and mycoplasma-like organisms, Non-parasitic diseases and Mycorrhizas. Aspects include: Taxonomy Morphology Genetics Physiology Molecular biology Control Fungicides and antibiotics Regulation and quarantine Take advantage of our Internet free trial offer!

6. New, Emerging, And Re-emerging Plant Diseases In The United States R = Reemerging pathogens associated with chemical resistance End of Viral DiseasesDatabase (Sorted by of plant Pathology, North Carolina State University http://www.ces.ncsu.edu/depts/ent/clinic/Emerging/vpath.htm

New, Emerging, and Re-emerging Plant Diseases in the United States Sorted by Pathogen Name New, Emerging, and Re-emerging Viral Plant Diseases Disease Pathogen Major Host Category Distribution* Sweet orange stem pitting Citrus tristeza closterovirus Citrus Mosaic Cucumber mosaic Clover, Coleus, Cucumber, Pumpkin, Spinach, Tomato, Watermelon N/R Submitted by Cucurbit aphid borne luteovirus Cucurbits N(?) Submitted by Virus geminivirus Tomato Tomato yellow leaf curl Geminivirus (Eastern Mediterranian) Tomato E,N Submitted by Lettuce infectious chlorosis N Submitted by Maize chlorotic mottle MCM virus Corn See also Maize rayado fino MRF virus Corn Mosaic Sorghum stunt mosaic rhabdovirus Corn, Sorghum, Wheat E Submitted by High Plains Mosaic Tenuivirus (?)(or just viral) Corn, Sweet corn, Wheat N Submitted by Corky ringspot Tobacco rattle virus Potato Tomato infectious chlorosis N Submitted by Tospovirus Onion N Submitted by Impatiens necrotic spot Tospovirus Ornamental plants E Submitted by Mosaic Virus Beans N(?) Submitted by Barley yellow streak mosaic Virus Barley E Lettuce necrotic yellows Virus Lettuce E Blueberry scorch Virus Blueberry N Submitted by Tobacco vein-banding mosaic Virus Tobacco N Submitted by Turnip crinkle Virus Daikon radish N Submitted by Tomato spotted wilt Virus (Bunyavirus) Tomato, Vegetables,Tobacco, Peanut, Impatiens

7. An Online Guide To Plant Disease Control, Oregon State University The Online plant Disease Database of over 1 200 plant diseases, images, and control recommendations from the Oregon state University's 2001 Pacific Northwest plant Disease Management Handbook. plant Pathology slide collection, as well as photographs taken by our colleagues. Additional articles from the handbook have been incorporated into the "pathogens http://plant-disease.orst.edu/

alert("Could not get JavaScript: buttonJava.js to load") T his site contains the alphabetical (A to Z) text sections of the 2002 Pacific Northwest Plant Disease Management Handbook, part of the OSU Extension Plant Pathology slide collection, as well as photographs taken by our colleagues. Additional articles from the handbook have been incorporated into the "Pathogens and Pesticides" section of this site. Control recommendations are based on the unique mix of climate, crops, regulations and growers of the Pacific Northwest and may not be applicable in other areas. The new 2003 PNW Plant Disease Management Handbooks are now available. You may purchase the 2003 PNW Plant Disease Management Handbook by contacting: Publication Orders, Extension and Experiment Station Commnications, Oregon State University, 422 Kerr Administration, Corvallis, OR, 97331-2119 FAX:541-737-0817 E-Mail: puborders@oregonstate.edu or the Publications and Videos Web Site Please use the buttons on the left side of this page to navigate throughout this site. The line drawings are linked to our two sister books, The PNW Insect Management Handbook and The PNW Weed Management Handbook. In print since 1954 and on the web since 1996.

8. Plant Diseases On The Forage Information System Alberta Agriculture, Food and Rural Development plant diseases Index Common Namesfor plant diseases CropNet - diseases diseases and pathogens of the Small http://www.forages.css.orst.edu/Topics/Pests/Diseases/

Plant Diseases Local Pages Within FIS Outside Links Damping off Diseases Endophyte Foliar Diseases Root and Crown Diseases ... Damping-Off Diseases Endophyte The Fescue Endophyte Story Tall Fescue and the Fungal Endophyte Foliar Diseases Alfalfa Disease Management - Foliar Diseases Caused By Fungi Foliar Diseases Rust Crown Rust Root and Crown Diseases Alfalfa Disease Management - Root and Crown Diseases Caused By Fungi Root and Crown Rots Wilt Alfalfa Disease Management - Wilt Diseases Caused By Fungi Bacterial Fusarium Verticillium General Plant Disease WWW Sites Alberta Agriculture, Food and Rural Development - Plant Diseases Index Common Names for Plant Diseases CropNet - Diseases Diseases and Pathogens of the Small Grains ... Wheat Diseases and Pests Forage Information System webmaster@forages.css.orst.edu Last updated Thursday, July 30, 1998 http://web.css.orst.edu/Topics/Pests/Diseases/index.html

9. Common Names Of Plant Diseases Local Pages Within FIS Root and Crown diseases General plant Disease WWW Sites Forage Information System Last updated Thursday, July 30, 1998 edu/ Topics/ Pests/ diseases/ index. Common Names for plant diseases. CropNet diseases. diseases and pathogens of the Small Grains http://www.apsnet.org/online/common

Title Page Table of Contents Search Order Common Names in Book or Diskette Form The American Phytopathological Society (APS) is a non-profit, professional, scientific organization dedicated to the study and control of plant diseases. The American Phytopathological Society The American Phytopathological Society Common Names of Plant Diseases Compiled by the Committee on Standardization of Common Names for Plant Diseases of The American Phytopathological Society 1978-2002 ISBN 0-89054-161-2 Updated 2002 Prepared from diskettes provided to APS Press by the Committee on Standardization of Common Names for Plant Diseases. In 1978, The American Phytopathological Society established a committee to develop listings of plant pathogens and the diseases they incite. By act of APS Council, the common names in these listings are now official names for use in APS in APS journals and other publications. The Committee on Standardization of Common Names for Plant Diseases has published names in Phytopathology News and Plant Disease.

10. PLP208 ECOLOGY OF PLANT PATHOGENS & EPIDEMIOLOGY OF PLANT DISEASES Concept Of Inoculum Potential In Soil And Critical Events In plant Infection. ModelingAnd Forecasting Root diseases. Control Of SoilBorne plant pathogens. http://www.plpnem.ucdavis.edu/PLP/courses/PLP208/PLP208.htm

Course Goals: The primary goal is to study those interactions between higher plants, plant pathogens, and the environment which are important in the occurrence and development of plant disease. Emphasis is placed on the population dynamics and ecology of plant pathogens in the aerial and soil environments. Entry Level: The course is designed primarily for graduate students in plant pathology and related fields. Plant pathology 120 or an equivalent course is a prerequisite. Any exposure the student has had to microbiology, mycology, ecology, population dynamics, soils, and atmospheric sciences will be helpful. However, no formal background in these areas is required. Course Format: Three hours of lecture and one hour of discussion are scheduled each week. Some of the discussion is prepared and led by students. Grades are based on one mid-term exam, a final exam and one paper. The paper is written on the epidemiology of a disease of the student's choosing. The paper takes the form of a research proposal and the goal of the proposed research is to gather all the information needed to model and/or forecast epidemics at a given location.

11. Integrated Crop Management - Complete Plant Diseases Index plant. diseases. Complete plant diseases Index. plant diseases Stand reductions in corn due to fungal pathogens and insects (Jun. http://www.ent.iastate.edu/ipm/icm/indices/plantdiseases.html

Plant Diseases Complete Plant Diseases Index Plant Diseases Aflatoxin Mycotoxins in the 1995 corn crop (Jan. 26, 1996) Alfalfa Alfalfa root and crown problems (Apr. 29, 1994) Alfalfa seedling diseases (Apr. 21, 1997) Alfalfa leaf diseases update (May. 26, 1997) Alfalfa seedling diseases in 1998 (Apr. 27, 1998) Alfalfa leaf diseases reported (May. 4, 1998) Alfalfa seedling diseases in 1999 (Apr. 26, 1999) Alfalfa leaf diseases appearing (May. 17, 1999) Spring alfalfa leaf diseases in 2001 (Apr. 30, 2001) Alfalfa disease resistance (Apr. 9, 2001) Alfalfa seedling and root diseases (Apr. 8, 2002) Spring alfalfa diseases in 2002 (May. 13, 2002) Alfalfa problems appearing (Jun. 3, 2002) Alfatoxin Check for ear rot diseases (Oct. 11, 1999) Anthracnose Coming soon: Mid-season corn leaf diseases (Jul. 15, 1996) BSR and other late-summer diseases (Sep. 3, 1996) Tillage and stalk rots (Nov. 17, 1997) Corn leaf diseases are appearing (Jul. 14, 1997) Disease control with Bt corn (Jan. 19, 1998) Corn plants dying prematurely (Sep. 14, 1998) Mid-season corn leaf diseases (Jul. 19, 1999)

12. PLP120 INTRODUCTION TO PLANT PATHOLOGY important crops in California. Lecture Topics Nature and importanceof plant diseases; Characteristics of major plant pathogens; http://www.plpnem.ucdavis.edu/PLP/courses/PLP120/PLP120.htm

Course Goals: To provide the student with concepts that form the basis for understanding the nature, cause, epidemiology, and control of plant diseases. The course emphasizes the ecological and biological aspects of pathogenic agents and their interactions with plants. The student will be introduced to all major types of plant pathogens. This is a basic course for students planning to take additional courses in plant pathology or plant biology, and serves as a breadth course for students whose primary interest lies in other areas of biology. Entry Level: Students are expected to be familiar with the principles and terminology of biology and with the morphology, anatomy, and physiology of plants. Their preparation should be no less than that obtained in Biological Sciences 1C. Course Format: Two lectures and two 3-hour laboratories per week. Lectures deal primarily with broad concepts and principles of plant pathology, pathogen biology and taxonomy, and contemporary topics related to plant-pathogen interactions. Laboratories cover specific types of plant diseases which are selected to illustrate all major groups of causal agents and types of disease and to provide students the opportunity to work with specific pathogens.

13. ARS | Publication Request: Plant Diseases As Potential Limiting Factors For Fora plant vigor, and causing stunting gand dying out of forages on waste applicationsites. This paper reviews observations and studies of diseases and pathogens http://www.nps.ars.usda.gov/publications/publications.htm?SEQ_NO_115=111091

14. This Month's Feature On APSnet plant pathogens, through the diseases they cause, influence the distribution of individualsof a species, the genetic variation of that species with respect to http://www.apsnet.org/online/feature/biodiver/Top.html

Biodiversity and Plant Pathogens and Conservation by Dr. David Ingram Participate in an Ecological Discussion on Plant Pathogen Conservation British Mycological Society Draft Policy On Conservation of Fungi Six Reasons ... Plant Pathology? Related Reading: Potato Late Blight and the Irish Potato Famine Why Europeans Drink Tea ... Chocoholics Link to the site of the th International Congress of Plant Pathology The American Phytopathological Society 3340 Pilot Knob Road St. Paul, MN 55121-2097 USA e-mail: aps@scisoc.org ICPP98 Event July 1 thru July 31, 1998 This ICPP98 event is sponsored by: The International Society of Plant Pathology The British Society for Plant Pathology The American Phytopathological Society Save Our Plant Pathogens! W hy preserve the biodiversity of plant pathogens? International Congress of Plant Pathology President David Ingram gives several reasons in his paper introduced below, including: 1) they serve a role in revealing genetic diversity in potential breeding material and provide vital screens for the development of new cultivars, 2) they are the raw material for much of the basic scientific research on life cycles and genetics that generate an understanding of pathogen variation, evolution and population dynamics, and 3) they constitute a potentially significant biotechnological resource of particular importance to the genetic engineer. Most plant pathologists are employed to control or eradicate plant diseases from crops in agriculture, horticulture or forestry. However, every plant species, wild or cultivated, has one or more plant diseases naturally associated with it. Plant diseases are a normal part of every natural and semi-natural community, but their impact and role in these communities is usually unnoticed and unappreciated. In cropping ecosystems (monocultures), plant diseases often cause visible death and destruction leading to yield loss. In natural ecosystems (biologically diverse), they are an "unseen" influence on both the plant community and the evolution of individual species.

15. Managing Plant Diseases With Biofungicides is composed of beneficial microorganisms, such as specialized fungi and bacteriathat attack and control plant pathogens and the diseases they cause (USDA). http://www.ext.vt.edu/news/periodicals/commhort/2002-11/2002-11-02.html

Managing Plant Diseases with Biofungicides Virginia Vegetable, Small Fruit and Specialty Crops November 2002; Volume 1, Issue 11 Cathy Thomas, Integrated Pest Management Program, Pennsylvania Department of Agriculture Editors note: the following article was taken from the Vegetable and Small Fruit Gazette, November 2002 issue. The newsletter can be accessed on the web at: http://hortweb.cas.psu.edu/extension/vegcrops/newsletterlist.html Diseases in greenhouse vegetables and floriculture crops can be managed effectively with biological fungicides (biofungicides). A biofungicide is composed of beneficial microorganisms, such as specialized fungi and bacteria that attack and control plant pathogens and the diseases they cause (USDA). These specialized fungi and bacteria are microorganisms that normally inhabit most soils. Biofungicides can be a viable alternative to chemical fungicides and can be used as part of an integrated disease management program to reduce the risk of pathogens developing resistance to traditional chemical based fungicides. An example of a widely used commercial biofungicide in the greenhouse industry is Trichoderma harzianum (TH) strain T-22 (PlantshieldÔ). TH protects plant roots from pathogens such as Pythium, Rhizoctonia, Fusarium, Sclerotinia, and Thielaviopsis. TH will also suppress foliar diseases such as Botrytis and powdery mildew.

16. Common Plant Diseases - Description And Treatment they tend to grow on the plant and not in Since killing the pathogens is difficultor impossible, prevention is 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.

17. August 29 4). September 13 Laboratory. Bacterial plant diseases. September 17 Howplants defend themselves against pathogens (Chapter 5). September http://www.ndsu.nodak.edu/plantpath/syl2001.htm

PPth 324 Introduction to Plant Pathology Plant pathology is the study of organisms and environmental factors that cause diseases in plants. The overall objective of this course is to introduce the students to the concept of plant health. Specific goals are: Develop a basic understanding of plant diseases, their cause and management; Develop an understanding of the basic biology of plant pathogens- i.e. how they cause disease, methods of spread and survival; Develop basic techniques necessary to work with plant pathogens in a laboratory setting; and Develop an understanding of the procedures involved in making a plant disease diagnosis. Instructor: Luis del Rio 324 Walster Hall Luis.delRio-Mendoza@ndsu.nodak.edu Office hours: 9:00-10:00 AM Monday and Wednesday and by appointment Lectures: 1:00-1:50 PM Monday and Wednesday in Loftsgaard Hall 114 Laboratories: Thursday in Walster Hall 315 Section 1 (call 13277): Section 2 (call 13285): 10:00-11:50 Section 3 (call 13293): 12:00- Section 4 (call 13307): Lab Instructor: Cheryl Biller 206 Waldron Hall diaglab@ndsuext.nodak.edu

18. For More Information, Contact Department Of Plant Pathology NDSU identifies plant diseases and other plant health problems for farmers and urbangrowers. The Seed Health Testing Laboratory identifies seed borne pathogens. http://www.ndsu.nodak.edu/plantpath/welcome.htm

Welcome Welcome to Plant Pathology website. The web pages included in this site describe the mission and research done here at North Dakota State University. Below is a breakdown of what is done in our department as well as the faculty and staff credentials. RESEARCH: The Plant Pathology Department at NDSU has research projects on the important diseases of major crops. Research projects cover root rots, head blights, foliar diseases, stem rust, leaf rust and viruses of cereals as well as diseases of dry edible beans, sunflowers, potatoes, sugar beets, flax, soybeans, urban forestry and shelterbelts. The faculty has expertise in host-parasite genetics, microbial ecology, epidemiology, tissue culture, molecular biology, genetic resistance, nematology, bacteriology, mycology, virology and electron microscopy. The Plant Pathology faculty have been successful in developing management practices or controls for major diseases. TEACHING: The Department offers programs of study leading to M.S. and Ph. D. degrees. A B.S. program in Plant Protection is available. NDSU graduates have had successful careers in agriculture. SERVICE: Extension Plant Pathologists help growers apply research results in controlling plant diseases. They are also involved in large adult training programs. The Plant Diagnostic Laboratory identifies plant diseases and other plant health problems for farmers and urban growers. The Seed Health Testing Laboratory identifies seed borne pathogens.

19. Midwest Biological Control News pathogens. In some cases, siderophore production and competitive success in acquiringFe3+ is the mechanism by which biocontrol agents control plant diseases. http://www.entomology.wisc.edu/mbcn/fea303.html

FEATURE ARTICLE Biological Control Of Plant Pathogens A Note From the Project Director: In the May 1995 issue of MBCN we acknowledged that while weed and plant disease biological control are very important, our grant specifies a newsletter devoted to insect biological control. The feature article of that issue was an introduction to the biological control of weeds . In this issue, we are pleased to have an article by Dr. Jennifer Parke of the University of Wisconsin, Department of Plant Pathology, introducing the subject of biological control of plant diseases. Plant diseases are caused mainly by fungi, bacteria, viruses and nematodes. Biocontrol of plant disease involves the use of an organism or organisms to reduce disease. In this article, I will emphasize biocontrol of diseases caused by fungi and bacteria. Biocontrol includes management of resident populations of organisms (the 'black box' approach) and introductions of specific organisms (the 'silver bullet' approach) to reduce disease. The 'Black Box' Approach.

20. 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/ppws/academics/courses/ppws3104.html

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

A  B  C  D  E  F  G  H  I  J  K  L  M  N  O  P  Q  R  S  T  U  V  W  X  Y  Z

Page 1     1-20 of 98    1  | 2  | 3  | 4  | 5  | Next 20