River to River Cooperative Weed Management Area.

RiversEdge West.

Special Note: RiversEdge West formerly known as the Tamarisk Coalition, change effective Mar 1, 2018.

RiversEdge West.

The mission of RiversEdge West (formerly the Tamarisk Coalition) is to advance the restoration of riparian lands through collaboration, education, and technical assistance. One of the most challenging aspects of conducting restoration work can be acquiring and maintaining adequate funding to support the full spectrum of restoration efforts. To that end, RiversEdge West has developed a variety of tools intended to help practitioners secure funding to support this work.

RiversEdge West.

Since 2001, RiversEdge West (formerly known as the Tamarisk Coalition) has been conducting riparian restoration research conferences and symposiums with a focus on impacts to riverside habitat in the arid western U.S. These gatherings are driven by RiversEdge West's commitment to advance the knowledge and practice of riparian restoration.

Dallas County (Iowa). Road Department.

Pennsylvania State University.

University of Georgia. Center for Invasive Species and Ecosystem Health; Invasive.org.

Produced by: Rod Randall, Western Australia Department of Agriculture
Note: Webarchive for Nature Conservancy's Global Invasive Species Team

USDA. FS. Northern Research Station.

"Rooted in Research" is the Northern Research Station's science delivery platform, with events and products tailored to natural resource professionals, partners, collaborators, and engaged citizens throughout the Northeast and Midwest. The bimonthly Rooted in Research focuses on the management implications of the latest research for natural resource managers. This publication features synthesized scientific information for high-priority land management needs, delivering key science findings to people who make and influence decisions about managing land and natural resources.

Montana Natural Heritage Program and Montana Fish, Wildlife and Parks

DOI. Fish and Wildlife Service.

See also: Ecological Risk Screening Summaries for more species summaries

West Virginia Code of State Rules.

Connecticut Agricultural Experiment Station.

See also: Plants: Fruits, Vegetables, Flowers, and House Plants Fact Sheets for more resources

Ontario Ministry of Agriculture, Food and Rural Affairs (Canada).

Saskatchewan Invasive Species Council (Canada).

See also: Fact Sheets for more resources

CAB International. Invasives Blog.

Russian knapweed (Rhaponticum repens) is a nonnative weed in the western United States. It was introduced in the late 1800’s and is now invading and degrading cropland, rangeland, riparian areas, and roadsides. This deep-rooted perennial is persistent and difficult and expensive to control by conventional means, is toxic to horses and outcompetes native vegetation by producing chemicals that inhibit plant growth. Russian knapweed is listed by the State of Colorado as a noxious weed, to be suppressed, contained, or locally extirpated.

The Colorado Department of Agriculture (CDA) offers biocontrol agents to help suppress weeds and insect pests. When two gall-forming agents were developed and tested by CABI, and became available for use against Russian knapweed, the CDA was prepared to use them against the more than 50,000 hectares of the weed that currently infests Colorado.

Wisconsin Department of Natural Resources.

University of Idaho Extension.

PNW 755 - A Pacific Northwest Extension Publication

Kansas State University. Cooperative Extension Service.

Western Australia Department of Primary Industries and Regional Development. Agriculture and Food Division.

Tip of the Mitt Watershed Council (Michigan).