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Volunteer Invasives Mapping Project Report

Display Report


First Year of Project
Station: San Bernard NWR
Region: 2
Contact Person: Thomas Adams
Contact Phone Number: 979.292.5642
Date Report Submitted:

List Type and/or Affiliation(s) of Volunteers: SCA, Summer Visting Volunteers
Total Number of Volunteers Trained to Map: 6
Total Number of Volunteer Hours Spent Mapping: 192

List of Invasives Species Mapped:Common NameScientific Name
  Deep-rooted Sedge Cyperus enterianus
Which, if any, of these Species are Early Detection Species: Chinese Tallow
Total Number of Acres Mapped (since project initiation): 350
Have You Shared Mapping Data with USGS in Ft. Collins? No

Describe Projects Initiated with Follow-Up Funds ($10,000): Unit is a severely degraded upland prairie purchased by the refuge complex. Unit was overgrazed and heavily modified to make wetlands for cattle and waterfowl. Volunteers mapped over 700 acres of upland in summer 2008, of which 350 acres are scheduled for chemical treatment of deep-rooted sedge in May 2009. A 20 acre site was treated with plateau in August 2008 to test efficacy of herbicide. Results were positive. Following prescribed burn in March 2009 the target area will be aerial sprayed with Plateau in early May 2009. Aquaneat herbicide will be applied by tank sprayer on sedge bordering wetlands. In June 2009 volunteers will assist with spreading 30 acres of the target site with hay from a pristine upland prairie. Results of sedge eradication and prairie restoration should be evident from 12 monitoring plots by September 2009
Total Number of Acres Treated with Follow-up Funding: 25
Total Number of Acres Restored with Follow-up Funding: 0
Total Number of Volunteers Engaged in Treatment and/or Restoration: 4


How has this Project Benefited Invasive Species Management Efforts at Your Station? Wait and see. The second part of this project - the aerial chemical treatment in May 2009 and the application of native seed species (shredded hay) in September 2009 will give us a measure of success or failure.
What are some of the Lessons Learned and/or Troubleshooting Points that could be Shared with Others Engaged in Similar Activity?
You have to be flexible. Severely degraded prairies on the coast will have to wait until January to prescribe burn because the annuals remain green until then. Strong frost will also brown out the vegetation and north winds are drier. Prairies with wetlands will necessitate adjustments with the type of herbicides used. Plateau herbicide cannot be sprayed near wetlands therefore labor intensive spraying with Aquaneat (generic Rodeo) is required on sedge bordering wetands and ditches.


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