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2007 "Volunteers Working With Invasives"
Grants Report Form

Display Report


Project Title: Eradication of Deep-rooted Sedge and Huisache from an Upland Prairie
Region: 2
Station: San Bernard NWR
Contact Person:
Name and Phone Number
Thomas Adams/(979) 292-5642
Project Description:
(Up to 250 words)
This project attempts ot eradicate deep-rooted sedge over a period of 3 years from an upland prairie unit of hte San Bernard NWR. To a lesser extent there will be periodic eradication of huisache (a woody legume) when the oppurtunity presents itself. Prior to acquisition the unit was subjected to intense grazing practices and wildfires were suppressed. This unit is expected to be put into a rotation of prescribe burning within 3 years if target species are removed and a succession of native grasses and forbs is established. Collateral mortality to other non-indigenous grasses is expected.
List of Invasives Species Targeted:Common NameScientific Name
  Deep-rooted Sedge Cyperus enterianus
Huisache Acacia farnesiana
Rattail Smut Grass Sporobolus indicus
Vasey Grass Paspalum urvillei
Bahia grass Paspalum notatum
Project Status: NotStarted
Project Completion Date
or Estimated Completion Date:


Volunteer Affiliation:
(Check all that apply)
            VA_GradIntern        VA_StudentConsAssoc           
Volunteer Involvement:
Describe the type of work the volunteers performed. (Up to 150 words)
This project awaits the results of research by a graduate student to determine the effects of specific herbicides on the mortality of deep-rooted sedge and other non-indigenous grasses. Volunteers will commence mapping of the target site, approximately 800 acres, when research concludes in spring 2008. Volunteers will map vegetation in the target site with Trimble hand-held gps units and download the data into an ArcGis mapping program.
Total Number of Volunteers: 4
Total Number of Volunteer Hours: 60
List both new and existing partnerships utilized in this project. (Up to 150 words).
Friends of Brazoria NWR


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).
Corps and desirable wooded tracts bordering the target site make aerially spraying problematic. A boom sprayer was to be the primary applicator of choice on outlier species until the expanse of sedge proved to be too labor intensive. However the Plateau herbicide proved to be very efficient in causing sedge mortality. Therefore management will make an attempt to aerially apply the chemical with a helicopeter in spring 2009 after a prescribed burn in January/February 2009. In addition, huisaches spanning 15 acres will be sprayed with a mix of Grazon p+d and tordon or Arsenal herbicide from a tank mounted ATV. Chemical treatment of sedge will conclude when all the purchased herbicide is exhausted, approximately 700 acres. Results of habitat restoration in sprayed areas will be evident in spring 2009.
Number of Acres Treated: 18
Number of Acres Inventoried and/or Mapped: 700
Number of Acres Restored: 0


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

Total Grant Amount:

$ 9,049.00

Breakdown of Expenditures:


Total $ Spent
% of Total Grant
Equipment / Supplies 4,500.00 50
Chemical 4,349.00 49
Biocontrol Agents
Volunteer Stipends 200.00 1
Volunteer Coordinator Salary/Contract
Restoration Materials
TOTAL 9,049.00 100

Recommendations: (OPTIONAL)
How useful was this program for meeting refuge invasive species objectives and how can it be improved?
Suggestions await implementation of project.


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