1. The Weed Science Society Of America Publishers of Weed Technology. Weed Technology includes original research on weed biology and control, Category Science Agriculture Pests and Diseases Weeds...... http://www.wssa.net/

The Weed Science Society of America The Weed Science Society of America was founded in 1956. The Society was established to encourage and promote the development of knowledge concerning weeds and their impact on the environment. The society membership currently consists of approximately 2,000 scientists worldwide. The Society publishes two journals, Weed Science and Weed Technology. Mission Statement The Weed Science Society of America promotes research, education, and extension outreach activities related to weeds; provides science-based information to the public and policy makers; and fosters awareness of weeds and their impacts on managed and natural ecosystems See our jobs listing Join/start a discussion group Get an update on the weed biology committee activities Information on the Invasive Plant Conference, 3-7 Nov 2003. The Weed Science Society of America (WSSA) publishes original research and scholarship in the form of peer-reviewed articles in two international journals. Weed Science is focused on understanding “why” phenomena occur. As such, it focuses on fundamental research directly related to all aspects of weed science, including invasive plant species.

2. Iowa State Weed Science Online weed science Archives. A listing of all articles that have appeared on this site since November 1996. http://www.weeds.iastate.edu/

Weed Resources Select a page ... Herbicide Manual for Ag Professionals Product and label update center Research Report Agronomic Links Iowa Weed Law Weed Identification Quick Links Select a site... Iowa State University ISU Extension Extension Agronomy Integrated Pest Mgmt. ICM Newsletter National Weather Service Chicago Board of Trade Site Sections New Articles Reference Desk A collection of useful references for weed management including links to herbicide labels, publications, and agrochemical manufacturers. Weed Science Archives A listing of all articles that have appeared on this site since November 1996. Articles are arranged by topic. Weed Science Personnel Links to Iowa State University faculty, staff, and graduate students involved with weed science research, extension, and teaching. Publications A listing of available weed management and related publications offered by Iowa State University, both online and in print form. Ordering information is also included. Agronomic Links Internet sites related to agronomy and crop production topics, government agencies, media, and University departments.

3. University_of_Missouri_Weed_Science MU weed science Research Reports and Field Evaluation Reports http://www.psu.missouri.edu/agronx/weeds

4. WeedJobs (Positions Available In Weed Science) Provides a list of current jobs in the industry as well as news and advice for career management. Positions in weed science. (WeedJobs). New position(s) added on February 21, 2003 http://www.nrcan.gc.ca/~bcampbel

Positions in Weed Science (WeedJobs) has moved to: http://www.wssa.net/weedjobs/

5. ISU Weed Science Online - Weed ID University; Common weed seedlings of Michigan Michigan State University;Photo Herbarium - weed science Society of America; Common http://www.weeds.iastate.edu/weed-id/weedid.htm

Where do you want to go? Home page Reference Desk Weed Science Archives Weed Science Personnel Publications Weed Search Agronomic Links Weed Identification Resources Weed Seedling ID Prepared by Brent Pringnitz , extension program specialist This is a web version of a slide set developed in cooperation with the ISU Agribusiness Education Program. As more weed ID slides are developed they will be added. When viewing each slide, the buttons below the slide will move you ahead, back, or return to this listing. Weed Seedling Identification Title Page Woolly cupgrass Yellow nutsedge Common cocklebur ... Velvetleaf (again) Black nightshade Jimsonweed Pennsylvania smartweed Common lambsquarters ... Marestail More Weed ID Resources Online listing of Print resources for Weed ID - Iowa State University Common weed seedlings of Michigan - Michigan State University Photo Herbarium - Weed Science Society of America Common Weeds of No-till Cropping Systems - Purdue University Weed Images and Descriptions - Rutgers University Idaho Noxious Weeds Kansas Noxious Weeds - Kansas Dept. of Ag

6. Weed Science Home Page Department Of Agriculture The Oregon State University Agronomic weed science Program conducts basic and applied research and extension programs in http://www.agric.wa.gov.au/progserv/plants/weeds

Department of Agriculture - Western Australia HOME The Department Contacts Feedback ... Helpful Hints Weed Science Home Page If you have any queries about the Weed Science web pages, please contact Rod Randall For further information (media releases, farmnotes etc) on any of the topics on this page, search the Department of Agriculture web site ( www.agric.wa.gov.au Weed Science Topics Identification of Weeds Prevention of Weed Infestation Weed Control Strategies Weed Related Legislation ... General Weed Information Recent Weeds Media Releases 8th July 2002: APB [Agriculture Protection Board] rejects criticism 12th June 2002: Public awareness success 30th May 2002: Beautiful but deadly, the truth about aquatic plants 30th May 2002: Aquatic weed threat to water ways 24th May 2002: APB announces zone control authority members 3rd May 2002: Caution on chemical use 10th April 2002: Imported seed must be clean 28th March 2002: Exotic weed found in Northern Territory 26th March 2002: Industry consultation on skeleton weed 20th March 2002: World's largest weed database Identification of Weeds AGWEST Plant Laboratories Books Herbaria Prevention of Weed Infestation Farm Biosecurity WAQIS HortGuard® GrainGuard™ Initiatives

7. ISU Weed Science Online - ISU weed science Online is now at a new address http//www.weeds.iastate.edu http://extension.agron.iastate.edu/extweeds

Iowa State University We've moved! www.weeds.iastate.edu ISU Weed Science Online is now at a new address - http://www.weeds.iastate.edu Please change your bookmarks or favorites so you don't miss out on current weed management information from Iowa State University Extension. For more information contact: ISU Extension Agronomy 2104 Agronomy Hall Ames, Iowa 50011-1010 Voice: (515) 294-1923 Fax: (515) 294-9985 http://www.weeds.iastate.edu This site designed and managed by Brent Pringnitz Submit questions or comments here. Common chemical and trade names are used in this publication. The use of trade names is for clarity by the reader. Inclusion of a trade name does not imply endorsement of that particular brand of herbicide and exclusion does not imply nonapproval.

8. Biological Control ... The Cutting Edge In Weed Science In Weber County Utah, insects have long been assisting in the fight against invading noxious weeds. News, control guide, and calendar. http://utahweeds.tripod.com/cutting.html

Get Five DVDs for $.49 each. Join now. Tell me when this page is updated The Cutting Edge in Weed Science News and Advancements Biological Control practices in weed management are truly on the Cutting Edge of Weed Science, although they have been in place for several years now. Here in Weber County, we took the lead in having insects introduced on Purple Loosestrife, an invader in our wetlands. James Barnhill from the USU Extension Office has really taken hold of this project and in the last four years has introduced 6 (?) species of host specific insects in Purple Loosestrife infested areas along the Weber River. Pictured to the right is one of the beetles, Galerucella calmariensis , that now inhabits the loosestrife population there. For more detailed information, navigate to the Purple Loosestrife bio-control page Knapweed Infestations in the North Fork Environmental Center area have been on the cutting edge of biological control for seven years now. The results have been extremely satisfying and so successful that others are collecting live insects at this site for distribution in other counties and states. For a closer look into this continuing project, navigate to the Knapweeds bio-control pages Noxious Weeds that respond well to biological controls and that have these kinds of insects and agents available are listed below. Follow the link to a page specific to the weed listed. As time goes on, we will add photographs of the resulting biological control activities right in our own "back yard" as well as around the country.

9. PEST CABWeb - Covering Entomology, Nematology, Weed Science, Biological Control, Entomology, nematology, weed science, biological control, and plant pathology . http://pest.cabweb.org

Site Search Go to Advanced Search Bulletin of Entomological Research Biocontrol News and Information Nematological Abstracts ... Weed Abstracts Welcome to PEST CABWeb Covering entomology, nematology, weed science, biological control, plant pathology and many other aspects of pest management: PEST CABWeb demonstrates a unique combination of scientific expertise and authoritative information resources © 2002 CAB INTERNATIONAL Descriptions of Fungi and Bacteria Distribution Maps of Plant Pests Distribution Maps of Plant Diseases Crop Protection Compendium ... Chemical

10. Penn State Weed Management Studies in weed science. Overview. Agronomy Degree Programs and Courses http://weeds.cas.psu.edu/

11. WeedJobs (Positions Available In Weed Science) Advertises permanent, term, postdoctoral and graduate student positions in weed science. http://www.wssa.net/weedjobs/

Positions in Weed Science (WeedJobs) New position(s) added on March 28, 2003 Index of positions available The WeedJobs pages, which were first published on February 6, 1995, list permanent, term, postdoctoral, graduate student and summer positions in weed science for which applications are invited. Invitations for job swaps are also posted. A companion site, Weed Science Resumes , lists resumes of persons seeking employment or graduate assistantships in Weed Science. These sites are the official WWW vehicles for the Placement Services of the Weed Science Society of America and the Canadian Weed Science Society Information for persons seeking positions Information for persons wishing to advertise positions (it's free) Listings of Positions ... Other Weed Science Related Pages Information for Persons Seeking Positions I have no personal knowledge of the positions advertised nor the advertisers. I assume that the listings have been submitted in good faith. Advertisers do frequently extend the closing date so it is worth enquiring about a position which is still listed even though the closing date has passed. Index of positions available Return to top of WeedJobs page Information for Persons Wishing to Advertise Positions Why advertise your weed science position here? First, you get worldwide advertising - most of the younger generation surf the Internet when job hunting. Second, it is fast - it can be on this page the same day that you e-mail it me. Compare this with the WSSA Newsletter which only comes out every three months and requires submissions one and a half months prior to publication. Third, and best of all, it's free.

12. Weed Science Society Of America http://www.wssa.net/subpages/weed/herbarium0.html

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13. Western Society Of Weed Science Western Society of weed science fosters weed research, education, and control programsand cooperation among local, state, federal, and private organizations. http://www.wsweedscience.org/

About WSWS Membership Information Officers Committees ... Weed Links Comments/feedback: WSWS Web Site Editor Something broken? Webmaster W estern Society of Weed Science [WSWS] is composed of weed science professionals that work in western North America. The Society works to promote weed science research and education, and membership is open to anyone interested in those goals. Announcements The submission deadline for Research Progress Reports is December 1, 2002. More>> Submission deadline for the Student Educational Enhancement Program is January 10, 2003. More>> Submission deadline for annual meeting abstract Title/Summary was December 1, 2002. You still may edit the body of your abstract, etc. The deadline for complete abstracts is February 1. More>> The September newsletter is online, and can be read from the Newsletter Page Site by:

14. WSWS Links To Weed Science Resources WSWS Logo. weed science Links There are many sites on the web thatlist links to weed science, weed control, or weed identification http://www.wsweedscience.org/weedlinks.php

Weed Science Links: There are many sites on the web that list links to weed science, weed control, or weed identification resources; in addition, the major search engines can help a person find most of the weed-related resources on the web. This page will focus on links to web sites that are potentially of the greatest interest to our members; in other words, sites that deal with issues and problems of high priority in western North America. Weed Science Societies: CWSS California Weed Science Society WSSA Weed Science Society of America NCWSS North Central Weed Science Society NEWSS Northeastern Weed Science Society IWSS International Weed Science Society Weed Control Programs: APHIS USDA APHIS Noxious Weeds Home Page, "a focal point for accessing information about noxious weeds and their control and eradication " CIPM Center for Invasive Plant Management CWMA Colorado Weed Management Association FICMNEW Federal Interagency Committee for the Management of Noxious and Exotic Weeds Idaho Noxious Weeds Idaho One Plan Noxious Weeds information Idaho Weed Watchers University of Idaho weed resources INVADERS Database System University of Montana: invasive alien plants and weedy natives Jointed Goatgrass Jointed Goatgrass: Threat to U.S. Wheat Production

15. Welcome Site Plan. News What's new in the world of weeds and weed science. MeetingsCheck here for up and coming events in weed management and weed science. http://home.vicnet.net.au/~weedsoc/

WSV Weed Society of Victoria Inc News Meetings Resources Awards ... Home Contact the Society Weed Society of Victoria Inc. PO Box 987, Frankston, Vic 3199, Australia Email: secwssv@surf.net.au Telephone/fax (03) 9576 2949 Objectives To promote wider awareness and interest in weeds and their management Site plan To promote opportunities for exchange of information and ideas based on research and practice for those interested in weeds and their management. Join the Society To encourage the study of weeds and the dissemination of its findings. Society history Business plan View as PDF file Raising weed awareness into the 21st Century Affiliations: International Weed Science Society Council of Australian Weed Science Societies Web management: This site is maintained by Bob Richardson (fax +61 (03) 5286 1533) or email robfiona@pipeline.com.au. Last update Tuesday, 29 January 2002 12:19 PM Site Plan News: What's new in the world of weeds and weed science. Meetings: Check here for up and coming events in weed management and weed science. WSV Meetings Others Resources: Watch here for new publications.

16. Homepage Of The Swiss Society For Phytiatry (SSP) Involved in exchange of information between specialists in phytopathology, entomology and weed science. Contains list of meetings, membership form, and relevant links. http://sgp.ethz.ch/english/index-e.htm

Swiss Society for Phytiatry Phytomedizin, ETH-Zentrum E-mail: brigitte.mauch@unine.ch Web: sgp.ethz.ch SSP - Executive Board Interested in SSP membership ? See the membership information and application form Latest news and updates ! Deutsch About Meetings SGP Info ... Links Send comments and questions about this Web page to christoph.keel@lbm.unil.ch Last updated: February 2003

17. Weed Science And Invasive Plants - Montana State University Weed identification and weed control including weed photos and results from ongoing invasive plant research at Montana State University. Cropping Systems. Weed Physiology. Range Weeds. Weed Ecology. Related MSU MSU Extension Weed Management, Land Resources and Environmental http://www.weeds.montana.edu/

A Service of Montana State University Extension and the Department of Land Resources and Environmental Sciences. Sponsored through funding provided by Montana Wheat and Barley Committee Crop Weeds Cropping Systems Weed Physiology ... Weed Ecology Related MSU Sites Integrated Pest Management Ag. Notes College of Ag. Precision Ag. News and Issues Before You Buy - Comparing Herbicides Basics of Leafy Spurge Chickpea in 2001 : Big Money, Big Wreck Potential Booklet now on the web - Growth Staging of Wheat, Barley, and Wild Oat. A strategic step to timing of field operations Barley injury potential from Wild Oat herbicides Weed control under drought conditions Grass Weed Seedling Key Broadleaf Weed Seedling Key MSU Extension Weed Management, Land Resources and Environmental Sciences Department, 334 Leon Johnson Hall, P.O. Box 173120, Bozeman, MT 59717-3120. Voice: (406)994-5718 Fax: (406)994-3933 Send comments and questions regarding this site to: mtrainor@montana.edu

18. NORTHEASTERN WEED SCIENCE SOCIETY These pages are hosted by Department of Plant Pathology, Physiology andweed science at Virginia Polytechnic Institute State University. http://www.ppws.vt.edu/newss/newss.htm

SOCIETY PUBLICATIONS EXTENSION ANNUAL MEETING ... LINKS CONTENTS NEWS and UPDATES SITE MAP The Society Publications Extension ... Related Links ARCHIVED NEWSLETTERS 2002 APRIL 2001 NOVEMBER 2001 AUGUST 2001 APRIL ... NEWSS webmaster QUICK LINKS Weed Science Volume 49 (2001) Volume 48 (2000) Volume 47 (1999) Volume 46 (1998) Weed Technology Volume 14 (2000) Volume 13 (1999) Volume 12 (1998) Current Events! Northeastern Weed Science Society Collegiate Weed Contest: Rules and plant/herbicide list are now available at the weed contest page! The NEWSS News will be completely electronic in August 2003! Please register your name and e-mail address on the “Newsletter List” at right. Contact Brent Lackey ( brent.lackey@syngenta.com ) or Shawn Askew ( saskew@vt.edu ) for more information. For Award Nomination Forms please click here. New England Invasive Plant Summit: Friday, Saturday, September 19-20, 2003

19. VA Tech Plant Pathology, Physiology And Weed Science Department of Plant Pathology, Physiology weed science VirginiaTech. Society. Northeastern weed science Society of America. Last http://www.ppws.vt.edu/

Department of Plant Pathology, Physiology Weed Science Virginia Tech Departmental Faculty Kriton K. Hatzios August 6, 1949 - February 20, 2003 Respected researcher succumbs to cancer Plant Management Network a resource for the applied plant sciences New Information for Prospective Students Minority Academic Opportunities Program 2002-2003 PPWS Graduate Student Handbook ... of America Last updated February 24, 2003 http://www.ppws.vt.edu

20. Changes In Pteridium Aquilinum Phytotoxicity Following treatments with lime, sulphuric acid, wood ash, glyphosate and ammonium nitrate. Abstract of a paper published in weed science (1996) 36. http://www.svek.slu.se/Abstracts/AD961.HTM

Changes in Pteridium aquilinum growth and phytotoxicity following treatments with lime, sulphuric acid, wood ash, glyphosate and ammonium nitrate. Ann Dolling Weed Research (1996) 36: 293-301 E-mail:Ann.Dolling@svek.slu.se The comparative effects of lime, sulphuric acid, wood ash, glyphosate and ammonium nitrate on Pteridium aqulinum (L.) Kuhn growth and development were evaluated in a Scots pine ( Pinus sylvestris L.) clear cut stand in south-east Sweden over a four-year period. P. aquilinum growth was effectively controlled following the application of glyphosate, but the other treatments generally had little effect on growth of P. aquilinum in terms of shoot density and length. Shoot length was positively related to the number of shoots on plots treated with ammonium nitrate but negatively correlated with the number of P. aquilinum shoots found on wood ash treated and control plots. In a bioassay aspen ( Populus tremula L.) seedling emergence and pH were significantly lower in humus treated with sulphuric acid, glyphosate, ammonium nitrate and untreated humus as compared to the humus treated with lime and wood ash. The negative effect of humus on emergence of aspen seedlings may be caused by phytotoxic compounds at a lower pH level. Forest regeneration might be performed with shade-tolerant species such as Norway spruce seedlings planted beneath a thin canopy of trees to prevent the rapid increase of P. aquilinum

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