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2008 "Volunteers Working With Invasives"
Grants Report Form

Display Report


Project Title: Strategic Control and Eradication of Invasive Plants On and Adjacent to Parker River National Wildlife Refuge
Region: 5
Station: 53550
Contact Person:
Name and Phone Number
Nancy Pau 978-465-5753 x211
Project Description:
(Up to 250 words)
In 2008 we continued to strategically treat Phragmites, Japanese Knotweed and Perennial Pepperweed in and around the Parker River NWR with the goal of eradicating these invasives on the Refuge and preventing their spread back to the Refuge. Volunteers were key to the project, assisting with mapping patches of these invasives and helping with mechanical control techniques. The salt marsh in and around the Refuge was designated as an IBA and a WHSRN site, and supports a diverse array of wildlife, including saltmarsh sharp-tailed sparrow, Nelson’s sharp-tailed sparrow, seaside sparrow, clapper rail, common tern, red knot, and American eel. It also supports one of the highest concentrations of wintering American black ducks on the east coast, for which the Refuge was established.
List of Invasives Species Targeted:Common NameScientific Name
  Perennial Pepperweed Lepidium latifolium
Japanese Knotweed Polygonum cuspidatum
Common Reed Phragmites australis
Project Status: Completed
Project Completion Date
or Estimated Completion Date:


Volunteer Affiliation:
(Check all that apply)
    VA_SchoolGrp                    VA_CivicOrg        VA_Other
Volunteer Involvement:
Describe the type of work the volunteers performed. (Up to 150 words)
Volunteers participated in three major ways. Especially the Gulf of Maine Insititute helped to recruit new volunteers and educate the community about the threat of invasives. Secondly, volunteers mapped pepperweed over a large geographic area (approx. 500 ac.). And thirdly, volunteers were key to mechanical control and treatment of the invasives by cutting, hand pulling, and disposing of the invasives.
Total Number of Volunteers: 227
Total Number of Volunteer Hours: 601
List both new and existing partnerships utilized in this project. (Up to 150 words).
We had help from many categories of partners in 2008. Conservation and Civic Groups include: Gulf of Maine Institute Newburyport Team, Massachusetts Audubon Society, Eight Towns and the Bay, Historic New England, and Concord Green Team. Several schools lent helping hands: Ipswich High School, Essex Middle School, Northern Essex Community College, and Newburyport High School. We also received help and support from Massachusetts Department of Conservation and Recreation, New England Mosquito Control and the New Hampshire Costal Program. The Newburyport Daily News and the Boston Globe published stories about our endeavors and the radio station WUML interviewed participants in the Pepperweed Project.


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).
We mapped pepperweed in approximately 90% of the Great Marsh identifying over 100 new patches and locating the southernmost and westernmost edges of the treatment area. During the summer, pepperweed was controlled at 40% of known sites. 71 sites were pulled by volunteers and staff and at 29 sites 0.03% Escort herbicide was applied by Refuge staff. Knotweed was treated at 4 sites. Volunteers assisted in cutting and removing knotweed in early to mid summer and staff applied Rodeo herbicide to the regrowth in late summer. Half of the knotweed was stunted and damaged by previous year’s treatment. Monitoring of Phragmites along the refuge road and in impoundments continued. Previously treated areas were re-mapped and treated again.
Number of Acres Treated: 15 (pepperweed) + 3 (knotweed) + 61 (phrag.)
Number of Acres Inventoried and/or Mapped: 15,000 (pepperweed) + 5 (knotweed) + 260 (phrag.)
Number of Acres Restored: 1000 (pepperweed) + 5 (knotweed) + 100 (phrag.)


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

Total Grant Amount:

$ $12,000

Breakdown of Expenditures:


Total $ Spent
% of Total Grant
Equipment / Supplies $100 0.8%
Biocontrol Agents
Volunteer Stipends
Volunteer Coordinator Salary/Contract $11,900 99.2%
Restoration Materials

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


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