Weeds

California Noxious Weed Control Projects Inventory
A combined government/private/non-profit endeavour to establish a database, accessible through the Internet, containing information on noxious weed control in California.
http://endeavor.des.ucdavis.edu/weeds/

Environmental Weeds Action Network (EWAN)
A community initiative to tackle the problem of environmental weeds in bushland and waterways in Australia.
http://members.iinet.net.au/~ewan/

Environmental Weeds in Australia
Brief introduction to some major environmental weeds in Australia, with photos.
http://www.anbg.gov.au/weeds/weeds.html

Flame Weeding for Agronomic Crops
Article discussing the use of flame weeders to control weeds before or after germination of the crop.
http://attra.ncat.org/attra-pub/flameweed.html

HDRA Organic Weed Management
This project aims to be a primary resource on weed management for organic farms, reporting on the latest weed information, weeding techniques and weed research.
http://www.gardenorganic.org.uk/organicweeds/

Identification of Vine Weeds in Florida Citrus
Photographs and identifying features of the commonly occurring climbing weeds.
http://edis.ifas.ufl.edu/HS185

Integrated Weed Control
Biological products and consulting services for weed management. Montana.
http://www.integratedweedcontrol.com/index.htm

International Parthenium Research News Group
Resources on this noxious weed for scientists and researchers. Includes a news group, picture gallery, scientists directory, references and links.
http://www.iprng.org/

International Survey of Herbicide Resistant Weeds
Information about weeds and their identification, control and herbicide resistance. A global collaborative effort.
http://www.weedscience.com

Iowa State Weed Science
Detailed information and articles covering all aspects of agricultural weed science.
http://www.weeds.iastate.edu/

King County Noxious Weed List
Weed identification in Washington State, USA.
http://dnr.metrokc.gov/wlr/lands/weeds/weedid.htm

Management of Problematic Aquatic Weeds in Africa
Information from the FAO on this subject with particular reference to water hyacinth, water lettuce and water fern.
http://www.fao.org/DOCREP/006/Y4270E/Y4270E00.HTM

National Weeds Strategy - Weeds of National Significance
Australian site promoting key weed policies, regulations, current issues, national initiatives, research, extension training and personnel.
http://www.weeds.org.au/natsig.htm

New Jersey Agricultural Weed Gallery
Includes brief details, and photographs of the important weeds of NE United States.
http://njaes.rutgers.edu/weeds/

Noxious Weeds in the US and Canada
Searchable database of the noxious weed lists for all U.S. states and six southern provinces of Canada.
http://invader.dbs.umt.edu/Noxious_Weeds/

Pacific North West Weed Management Handbook
Information on dealing with weeds found in this region including a weed identification image collection.
http://weeds.ippc.orst.edu/pnw/weeds

Principles of Sustainable Weed Management for Croplands
Article discussing several alternatives to conventional tillage systems, including allelopathy, intercropping, crop rotations and a weed-free cropping design.
http://attra.ncat.org/attra-pub/weed.html

Procedures for Weed Risk Assessment
Information from the FAO on what should be done prior to the importation of plants to evaluate the likelihood of them becoming nuisance weeds. [PDF]
ftp://ftp.fao.org/docrep/fao/009/y5885e/y5885e00.pdf

A Review of Non-Chemical Weed Management
Organic farmers cite weed control as the most significant problem they encounter. This article discusses possible solutions in depth. [PDF]
http://www.gardenorganic.org.uk/organicweeds/downloads/updated_review.pdf

UNL Weedscience
This University of Nebraska program conducts research into herbicides and weed types. Page includes list of publications and news.
http://weedscience.unl.edu/

Virginia Tech Weed Identification Guide
Images and descriptions of many species of terrestrial and aquatic weeds in Virginia.
http://www.ppws.vt.edu/weedindex.htm

Weed Definitions and FAQs
Information from the NSW Department of Primary Industries in Australia on weeds classed as noxious that need to be eliminated, those that threaten the environment and agricultural weeds.
http://www.dpi.nsw.gov.au/agriculture/pests-weeds/weeds/definition

Weed Identification
Key and species accounts for 172 species from the University of Illinois.
http://web.aces.uiuc.edu/weedid/

Weed Management for Developing Countries
Information from the FAO on improved weed management, problem weeds in crop and non-crop situations and management options and perspectives.
http://www.fao.org/DOCREP/006/Y5031E/Y5031E00.HTM

Weed Research and Information Center
An interdisciplinary collaboration that fosters research in Weed Management and facilitates distribution of associated knowledge for the benefit of agriculture and for the preservation of natural resources.
http://wric.ucdavis.edu/

Weed Science Society of America
Publishers of Weed Technology, which includes original research on weed biology and control, weed and crop management systems and reports of new problems.
http://www.wssa.net/WSSA/Jobs/

Weeds Australia
Australian Weeds Committee site promoting key weed policies, regulations, current issues, national initiatives, research, extension training and personnel.
http://www.weeds.org.au/

Weeds Management
Information on Australian weeds with guides to identification and control.
http://www.agric.nsw.gov.au/reader/weeds

Weeds Society of Western Australia
Includes scientists, consultants, company representatives, conservationists, other practitioners and members of the public who have an interest in weed management
http://members.iinet.net.au/~weeds/