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2006 "Volunteers Working With Invasives"
Grants Report Form

Display Report


Project Title: Grand Bay NWR Savanna Restoration
Region: 4
Station: Grand Bay National Wildlife Refuge
Contact Person:
Name and Phone Number
Durwin C.Carter (228) 475-0765
Project Description:
(Up to 250 words)
Grand Bay NWR is 14,000 acres. Uplands consist of mostly pine savanna habitat. This habitat is beneficial to endangered wildlife species such as the gopher tortoise and bald eagle. Pine savannas are also noted for a high level of species diversity in the herbaceous understory. Plant species of particular interest found on Grand Bay NWR include various insectivorous species such as sundews, pitcher plants and pinguiculas. Cogon grass infestations on the edges of the savanna and in the heart of newly acquired tracts of land threaten this critical habitat and the wildlife it supports. We propose to instruct a team of volunteers to GPS the locations of cogon grass areas within the boundaries and if time permits, identify areas of concern adjacent to the refuge boundary. After areas are identified volunteer teams will initiate cogon grass eradication with preferred herbicides at priority locations. Treatment dates will be dependant upon period of retranslocation of cogon grass nutrients to maximize herbicide effect. Herbicides will be reapplied as warranted. Site mapping and initial application should be completed by the end of FY 07.
List of Invasives Species Targeted:Common NameScientific Name
  Cogon Grass Imperata cylindrica
Project Status: Completed
Project Completion Date
or Estimated Completion Date:


Volunteer Affiliation:
(Check all that apply)
Volunteer Involvement:
Describe the type of work the volunteers performed. (Up to 150 words)
Volunteers have initiated GPS mapping cogon grass infestations within the boundaries of the Grand Bay National Wildlife Refuge. Adjacent lands with substantial cogon grass infestations are also being mapped if deemed a threat to refuge lands. After mapping areas, volunteers and partners use gas powered trimmers to mow dense stands of cogon grass. After mowing dense stand volunteers use leaf blowers to remove cut vegetation and exposed base of invasive plants. ATV boom sprayers and backpack sprayers are used to disperse a mix of Arsenal and Round-Up mix. Following herbicide application sites will be monitored, documented, and herbicide reapplied if warranted.
Total Number of Volunteers: 8
Total Number of Volunteer Hours: 100 hours to date
List both new and existing partnerships utilized in this project. (Up to 150 words).
Participants in this project will be the National Estuarine Research Reserve (NEER), Grand Bay NWR volunteers, and Grand Bay NEER volunteers.


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).
To date about 20 acres of cogon grass have been identified and treated by our volunteers. More than 10,000 acres remain to be evaluated for cogon grass infestations. 20 acres have been treated and invasive kill has been successful. Additional applications will take place as warranted (most likely October before retranslocation to maximize kill rate). Some area were not mowed to examine if plant kill rate is higher/faster/more effective in mowed vs. unmowed area. Field observations suggest that areas mowed before herbicide application result in higher and greater plant death than areas not mowed before herbicide application. This fiscal year Grand Bay NWR is scheduled to receive prescribed burn treatments which will facilitate locating, mapping, and treating additional areas on the refuge.
Number of Acres Treated: 20 to date
Number of Acres Inventoried and/or Mapped: 20 to date
Number of Acres Restored: 20 acres sprayed


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

Total Grant Amount:

$ 9313.00

Breakdown of Expenditures:


Total $ Spent
% of Total Grant
Equipment / Supplies 2702.05 29
Chemical 5125.46 55
Biocontrol Agents
Volunteer Stipends
Volunteer Coordinator Salary/Contract
Restoration Materials
Other 1472.49 16
TOTAL 9300.00

Recommendations: (OPTIONAL)
How useful was this program for meeting refuge invasive species objectives and how can it be improved?


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