Database of IPM Resources (DIR)
    Internet Resources on Weeds ? Their Control
  1.  APHIS Web - Risk Assessment for Noxious Weeds - An article from USDA APHIS Plant Protection and Quarantine.

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  2. AMERICA'S LEAST WANTED: Alien Species Invasions of U.S. Ecosystems - A publication of The Nature Conservancy. Sponsored by the Invasive Species Specialist Group of the IUCN. To subscribe send a message to majordomo@ns.planet.gen.nz. In the body of the message (not on the subject line) type: subscribe aliens-l. On the next line type "end", or two dashes. For additional information, without subscribing, send a message to majordomo@ns.planet.gen.nz.  In the body of the message (not on the subject line) type: info aliens-l. On the next line type "end", or two dashes.

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  3. Alien Plant Working Group: A web-based, public education project of the Native Plant Conservation Initiative's Alien Plant Working Group, providing information about the serious threat and impact of invasive alien (exotic) plants to the native flora, fauna, and natural ecosystems of the United States. This site provides a compiled listing of identified harmful invasive weeds determined to pose a serious threat to natural areas, fact sheets with information on identification and native range, biology and mechanisms of spread, distribution and habitat in the U.S., management options, and links to management experts and other relevant contacts. 

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  4. Aquatic Plant Management Society - an international organization of scientists, educators, students, commercial pesticide applicators, administrators, and concerned individuals interested in the management and study of aquatic plants. 

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  5. Aquatic Weed Guide - Biological Control With Fish and Insects.

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  6. Biological Control of Weeds in Europe (Lutte biologique contre les mauvaises herbes en Europe) (Biologische Unkrautbek?mpfung in Europa) -  Summary of Objectives, Present status and recent achievements, and Working organisations and working groups.

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  7. Biocontrol Guide - This guide provides photographs and descriptions of major biological control (or biocontrol) agents of major insect, disease and weed pests in North America. Information about parasitoids, predators, pathogens and weed feeders. Link to the National Biological Control Institute.

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  8. California Exotic Pest Plant Council

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  9. Canadian Poisonous Plants Information System  - A research tool that provides access to information on poisonous plants and their effects on animals and humans. The program contains information on: plant nomenclature (common and scientific names), distribution of wild plants (rendered graphically by province and territory), cultivated and food plants of concern, toxic plant parts,  toxic chemicals, additional descriptive information on many of the poisonous plants, references, etc. 

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  10. Canadian Weed Management and Biocontrol (Crop and Plant Management Unit,  Alberta Research Council)

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  11. Citrus Weed Management: Methods of Weed  Control, Weed Control Programs, influence on the environment, environmental considerations, reducing  herbicide movement in the soil.

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  12. Colorado Weed Management Association (CWMA): Weed Watch, the CWMA Newsletter, calendar of events. Weeds mandated by Law to Control, Noxious Weeds, Links to other related resources. Photos and short description of 30 troublesome weeds.

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  13. Compendium of Pesticide Common Names -  More than 1000 pesticide common names as assigned by  the International Organization for Standardization (ISO). This Compendium is believed to be the only place where all of the ISO-approved names are listed,  and it also includes approved names from national bodies for substances that do not have ISO names. Contents: Index of all common names, Index of new common names, Index of molecular formulae, Index of IUPAC systematic names, Index of non-ISO common names, Index of updated data sheets, Index of CAS Registry Numbers,  Pesticide classification, Alerting service, and more. 

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  14. Cornell University Poisonous Plants Page  - A growing reference that includes plant images, pictures of affected animals and presentations concerning the botany, chemistry, toxicology, diagnosis and prevention of poisoning of animals by plants and other natural flora (fungi, etc.). 

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  15. CRC Weed Management Systems,  Australia. 

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  16. Crop Pests - Weeds (Grasses and Grass-like) (Colorado State University, USA)

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  17. Environmental Weeds in Australia (Australian National Botanic Gardens)

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  18. Exotic Plant Species of the Colorado Plateau: Ecology and distribution, photographs, federal, regional, and state exotic plant species information (Colorado Plateau Research Station, Flagstaff, Arizona, USA)

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  19. FAO's GPPIS: Global Plant and Pest Information System

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  20. Federal Interagency Committee for the Management of Noxious and Exotic Weeds (FICMNEW), USA: Index: About FICMNEW, National Invasive Plant Management Strategy, Federal Noxious Weed Act, links to weed related websites.

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  21. Florida Weeds - Index: Introduction, Illustrated glossary, Scientific names and Common Names.

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  22. Herbicide-Resistant Weeds - This list of herbicide-resistant weeds is sorted by crop.

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  23. Impact of Drought on Weed Management - This publication has been issued in print by the North Carolina Cooperative Extension Service as publication number AG-519-7 (December 1994).

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  24. International Survey of Herbicide-Resistant Weeds - The results of the 1998 International Survey of Herbicide-Resistant Weeds are posted at this web site.  The purpose of this survey is to monitor the evolution of herbicide-resistant weeds and assess their impact throughout the world.  At this web site you can view current lists of herbicide-resistant weeds, view a paper and summary graphs of the survey, and register new occurrences of herbicide-resistant weeds.

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  25. INVADERS Database System - A comprehensive database of exotic plant names, distribution records, and regulatory information for thenorthwestern United States. The INVADERS web site contains information from the INVADERS Database project and has the INVADERS software available for download. This software software is a computerized catalogue of plant names and an enhanced electronic atlas of weed distribution data. 

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  26. Invasion Plants of North America
    1. Invasive Plants of Florida
    2. Invasive Alien Plants of Virginia
    3. New Mexico State Exotic Plant Candidate Species
    4. Preliminary List of Plant Species of Concern - Pacific Northwest
    5. Invasive Plants of Canada Project (National Botanical Services, Ottawa, ON, Canada) -  Terrestrial and Aquatic Invasions of Canadian Ecosystems, Garlic Mustard Alliaria petiolata, European Frog-bit Hydrocharis morsus-ranae,  Purple Loosestrife Lythrum salicaria,  Glossy Buckthorn Frangula alnus,  Common Buckthorn Rhamnus cathartica,  Canada Thistle Cirsium arvense, Leafy Spurge Euphorbia esula, Rush Skeletonweed (Chondrilla juncea), Facts and bibliography, Phenology/ecology in the Okanagan Valley, BC, Scotch Broom (Cytisus scoparius), Overview of Scotch Broom in British Columbia, TNC Scotch Broom Element Stewardship Abstract, Impact of Invasive Plants on Species and Habitats at Risk in Canada, and  Guide to Monitoring Exotic and Invasive Plants.

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  27. Invasive Woody Plants in the Tropics research group, based at the University of Wales, Bangor, UK

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  28. Jointed Goatgrass Home Page (Department of Bioagricultural Sciences and Pest Management ,Colorado State University, USA) 

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  29. Links to Exotic Pest Plant Resources 
    1. Florida Exotic Pest Plant Council
    2. Tennessee Exotic Pest Plant Council
    3. Team Arundo del Norte (California Environmental Resources Evaluation System ) 
    4. Element Stewardship Abstracts -exotic pest plants 
    5. Wildlands Restoration Team 
    6. Native Habitats (California organizations ? agencies for ecological restoration) 
    7. An Assessment of Exotic Plant Species of Rocky Mountain National Park
    8. California Noxious Weed Control Project Inventory
    9. Exotic Plant Species of the Colorado Plateau: ecology and distribution, photographs, federal, regional, and state exotic plant species information 
    10. Florida Weeds
    11. Colorado Weed Management Association 
    12. On-Line Book: Nonindigenous Aquatic and Selected Terrestrial Species of Florida
    13. Federal Interagency Weed Committee

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  30.  Mailbase - Mailbase UK electronic mailing list service. A weed-studies discussion list has been set up to provide a forum for discussion of all aspects of weed  research in the UK and further afield. To join the discussion list send a email simply saying 'Join weed-studies first name(s) last name' (e.g. join weed-studies Fred Bloggs) to mailbase@mailbase.ac.uk 

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  31. National Park Service-Handbook for Ranking Exotic Plants for Management and Control (US National Park Service)

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  32. National Parks Service IPM Manual (USA) - Provides descriptions of the biology and management of 21 species or categories of pests. The Park Service is pleased to offer this information to the IPM community.

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  33. New Zealand Weeds ? NZ Weed Control Site

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  34. Noxious Weed Sites in USA
    1. Arizona State Designated Exotic Plant Species
    2. Colorado State Designated Exotic Plant Species 
    3. Kansas Noxious Weed Law
    4. Prohibited Aquatic Plants in Florida
    5. Utah State Noxious Weeds
    6. Noxious Weeds, Exotic Plants and Invasive Plants Management Resources
    7. North Carolina State Noxious Weed List

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  35. Plants that Hog the Garden: Invasive Plants in the United States - Contents: Herbaceous, Grasses, Aquatic, Vines, Shrubs, Tree, and Miscellaneous.

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  36. South Africa: ARC-PPRI Weeds Research Division

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  38. Turfgrass Weeds: National Park Service Integrated Pest Management Manual.

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  39. US Exotic Pest Plant Councils - Florida and California

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  40. Web Sites on Poisonous Plants
    1. Cornell University, New York, USA
    2. Indiana Plants Poisonous to Livestock and Pets 
    3. University of Illinois Plants Poisonous to Animals 
    4. A phytochemical database with plants ranked by chemical content. 
    5. Canadian Poisonous Plants Information System 

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  41. An American bibliographic database

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  43. Weeds Australia, National Weeds Strategy (National Weeds Strategy Executive Committee) - Objective is to promote access to key weed policies, regulations, current issues, national initiatives, research, extension, training and personnel. 

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  44. Weed Control Guide: (Florida Agricultural Information Retrieval System): Principles, Herbicides, Control of Weeds in different Crops.

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  45. Weeds Homepage: Biology and Control of annual and perennial weeds, Economics of chemical weed control

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  46. Weed Identification (Univ. of Illinois): Weeds, Wild Herbs and Poisonous Plants. Images of many weeds in various stages.

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  47. Weed Images 
    1. Illustrated Guide to Arizona Weeds 
    2. The Nature Conservancy's Wildland Weeds Management ? Research site: 
    3. Weed Science Society of America Photo Herbarium 
    4. WSSA Photo Herbarium 
    5. Western Weeds, A guide to the weeds of Western Australia. 

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  48. Weed Images and Descriptions (Rutgers Cooperative Extension, New Jersey Agricultural Experiment Station): Searchable by keyword

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  49. Weed ID and Management page 

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  50. Weed Pictures at University of California, Davis 

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  51. Weed Killers by the Glass: Weed Killers by the Glass - Health effects of herbicides, Methodology, Findings and Recommondations.

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  52. Weed List - A list of 16,000 records relating to plants as weeds anywhere in the world and the naturalised flora in Australia. The format is relatively simple with one record per line, each line derived from a single source. Multiple records for a species is some indicationof a plants weediness, or at the very least where it is weedy. 

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  53. Weed Management (Agriculture, Food, and Rural Development of Alberta, Canada)

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  54. Weeds of no-till cropping systems 

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  55. Weed Science Lab (University of Illinois)

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  56. Weed and Related Societies/Councils
    1. Aquatic Plant Management Society 
    2. California Weed Science Society 
    3. California Exotic Pest Plant Council 
    4. Colorado Weed Management Society 
    5. Council for Agricultural Science and Technology (CAST) 
    6. European Weed Research Society, ? links to other sites 
    7. Federal Interagency Committee for the Management of Noxious ? Exotic Weeds (USA) 
    8. Floridia Exotic Pest Plant Council 
    9. International Weed Science Society 
    10. Italian Weed Science Society
    11. North American Weed Management Assoc. 
    12. North Central Weed Science Society (Iowa State University)
    13. North Eastern Weed Science Society 
    14. Oregon Vegetation Management Research Cooperative 
    15. Plant Protection Society of Western Australia 
    16. 'Pulling Together:  National Strategy for Invasive Plant Management (USA)
    17. The Weed Society of New South Wales Inc. 
    18. Western Society of Weed Science 
  57. Western Weeds - the Book! (Plant Protection Society of WA)

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  58. Wildland Weeds Management ? Research Program (Nature Conservancy)

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