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2009 "Volunteers Working With Invasives"
Grants Report Form

Display Report


Project Title: Volunteer Invasive Weed Control Team
Region: 6
Station: Ouray National Wildlife Refuge
Contact Person:
Name and Phone Number
Diane Penttila 435-545-2522 x 12
Project Description:
(Up to 250 words)
Each year Ouray NWR has an aggressive invasive weed control program using a crew of volunteers and seasonals. With our wetlands and riparian areas dependent on high spring river flows loaded with weed seeds, invasive weeds will be an adherent problem. But many wetland impounds and adjacent uplands where weeds have spread to have already been reclaimed from severe infestations. The Refuge is committed to maintain those wetlands and uplands already controlled of weeds and continue to restore additional wetland, riparian, and upland areas. Target weeds that Ouray NWR focuses on are saltcedr, Russian olive, perennial pepperweeed, Russian knapweed, and Canada thistle. A fairly new invasive weed, bull thistle was discovered before it spread into large infestations. While scattered in many different areas of the Refuge, considerable effort has been made and will contiue to be made to completely eradicate this weed. Several weed treatment test plots are also maintained each year. These plots test chemical and surfactant varieties, rates applied, application methods, timing of application, and effects on target weeds and desirable species to determine the most effective and efficient method of control.
List of Invasives Species Targeted:Common NameScientific Name
  Saltcedar Tamarix ramosissima
Russian olive Elaeagnus angustifolia
Perennial pepperweed Lepidium latifolium
Russian knapweed Acroptilon repens
Canada thistle Cirsium arvense
Bull thistle Cirsium vulgare
Project Status: InProgress
Project Completion Date
or Estimated Completion Date:


Volunteer Affiliation:
(Check all that apply)
VA_Scouts        VA_AmeriCorps            VA_StudentConsAssoc            VA_Other
Volunteer Involvement:
Describe the type of work the volunteers performed. (Up to 150 words)
In 2009, the Refuge had two volunteers that helped on weed control projects for a small amount of hours. In addition, we continued to rely on SCA interns to be an intregal part of our weed control team. In 2009, we had an SCA intern that completed over 1,014 hours. With this intern we were able to maintain control of perernnial pepperweed on all our existing areas of prior treatment and expand treatment into new areas. We re-vamped our Canada thistle efforts after completion of our Refuge wide weed inventory and made considerable progress in control. The intern was very instrumental in our bull thistle eradication as he had an excellent eye for locating the smallest patches. He solely was resposible for maintainance of saltcedar in a large wetland complex and has contributed greatly in expanding our Russian knapweed control. He was also a key member of volunteer weed crews on the Green River working upriver from the Refuge on BLM lands on weeds that have not yet reached the Refuge.
Total Number of Volunteers: 3
Total Number of Volunteer Hours: 1,075
List both new and existing partnerships utilized in this project. (Up to 150 words).
Student Conservation Association, Boy Scouts of America, Uintah Basin Cooperative Weed Management Area.


Project Results:
Give an overview of the results of the project. Include quantifiable measure of success, such as maps produced, efficacy of control measures, number of sites where invasions were detected early and responded to, number of community contacts, etc. (Up to 250 words).
Many areas are now cleared of weeds that only need to be maintained and include: saltcedar in S-4, L-10, north draw, the hatchery canal, a large area along the auto tour route and the Green River, the center canal of Leota bottom and large areas of Johnson bottom and S1a, perennial pepperweed in the Parker tracts, the fields north of Parker Tracts, large areas of Wyasket Pond, and the old hatchery site. Progress is finally being made with control of Russian knapweed and Canada thistle and control has been expanded upon in 2009. Bull thistle was searched for relentlessly in all past areas and a few new areas were found. All were treated in 2009. Many new areas were expanded upon in 2009 including: perennial pepperweed in L-4 and west of Parker, saltcedar in L-4, L-7, L-9, and S-5. In addition, in cooperation with the Uintah Basin Cooperative Weed Management Area (UBCWMA), the intern assisted on several river trips on the Green River to control teasel and map Russian olive on sections of the Green River upriver from the Refuge. UBCWMA is commited to preventing new weed species from moving to new areas downriver and to remove all Russian olive in large sections of the River corridor. All the weed treatment test plots were monitored with assistance from the volunteers and intern and improvements continue to be made based on information on the test plots.
Number of Acres Treated: 275
Number of Acres Inventoried and/or Mapped: 275
Number of Acres Restored: 175


Budget: Account for funds in broad categories such as equipment, volunteer stipends, travel, coordinator salary/contract, etc.

Total Grant Amount:

$ 13,000

Breakdown of Expenditures:


Total $ Spent
% of Total Grant
Equipment / Supplies
Biocontrol Agents
Volunteer Stipends
Volunteer Coordinator Salary/Contract 13,000 100%
Restoration Materials
TOTAL 13,000 100%

Recommendations: (OPTIONAL)
How useful was this program for meeting refuge invasive species objectives and how can it be improved?
This program is essential for Ouray NWR to continue our aggressive invasive weed control program which maintains those areas that have had invasive weeds controlled and to continue to reclaim additional areas.


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