Links

Noxious Weeds, and Exotic and Invasive Plant Management Resources: great source for a number of other sites.

Identification
CSU/Arapahoe County Cooperative Extension: Identification, management, prevention,statistics
Idaho's Noxious Weeds: Online version, by Robert H. Callihan. Identification, Ecology
Crop Net: Lots of weeds!
Montana Weed Control Association: Legislation, information,Identification
Plant Protection & Weed Control Program: Identification and control
Colorado Weed Management Association: Identification, Management, & other info

Control/Management
CSU/Arapahoe County Cooperative Extension: Identification, management, prevention,statistics
CSU/Arapahoe County Cooperative Extension-Prevention of Noxious Weeds: Noxious weeds, why they invade
NationalCooperative Agriculture Pest Survey (CAPS): State Comment(s) & Information
CAPS: Montana
CAPS: Wyoming
National Biological Control Institute
Weed-feeders

Herbicide Information
C&P PRESS, INC.: This is a online version of the C&P Greenbook, list major herbicide labels
DOW AgroSciences
DUPONT
FMC

Plant Data Bases
Invaders Database system: Northwest US tracking and information system.
USDA: Plants National Database
MEL: Weeds and weeds Management: Links to a number of information and database sites.

Reference: Good sources for reports and papers
Weed science Links:
WSSA (Weed Science Society of America): publications, weed information, herbicides, photo herbarium
FICMNEW: Federal Interagency Committee for the Management of Noxious and Exotic Weeds
Rangeland Weeds: Arizona state
Impacts of noxious weeds on the ecology and economy of Montana

Supplys and Resources
Wyoming Weed and Pest Council Public Library

Use a Search engine to find other related sites.

Profusion
Lycos