West Greeley Conservation Districtwww.wgcd.org
Baca County Websitehttp://www.bacaccd.com/
Adams County Website http://www.colostate.edu/Depts/CoopExt/Adams/weeds.htm
Boulder County Website http://www.co.boulder.co.us/openspace/resources/weeds/weeds_div.htm
Larimer County Website http://www.co.larimer.co.us/depts/pubwor/weeds/district.htm
CO. Dept of Ag. – Noxious Weed Management http://www.colorado.gov/ag/weeds
Colorado Native Plant Society http://www.conps.org/conps.html
Colorado Natural Heritage Program http://www.cnhp.colostate.edu/
Bureau of Land Managements Weed website http://www.blm.gov/weeds/
Natural Resource Conservation Service http://efotg.nrcs.usda.gov/treemenuFS.aspx?Fips=08123&MenuName=menuCO.zip
The National Organic Program http://www.ams.usda.gov/nop/indexIE.htm
USDA Forest Service Invasive Species program http://www.fs.fed.us/invasivespecies/
Weeds Gone Wild – Alien Plant Invaders of Natural Areas http://www.nps.gov/plants/alien/
PNW Weed Management Handbook http://weeds.ippc.orst.edu/pnw/weeds
University of Nebraska Weed Fact Sheets http://ianrpubs.unl.edu/weeds/
University of California - Agriculture and Natural Resources www.ipm.ucdavis.edu/PMG/crops-agriculture.html
Colorado State University http://southcampus.colostate.edu/poisonous_plants/index.cfm
Colorado Weed Management Assoc. www.cwma.org
North American Weed Mgmt Assoc. www.nawma.org
www.cdms.net/http://www.cdms.net/manuf/default.asp
www.greenbook.net http://www.greenbook.net/search/login.asp?returnPage=Quicksearch/
United States Department of Agriculture http://www.usda.gov/wps/portal/usdahome
Colorado Department of Agriculture http://www.colorado.gov/ag
Protect your Waters http://protectyourwaters.org
High-Plains No-Till Conference www.highplainsnotill.com