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2007 "Volunteers Working With Invasives"
Grants Report Form

Display Report


Project Title: EDRR of perennial pepperweed and Japanese knotweed
Region: 5
Station: Parker River NWR
Contact Person:
Name and Phone Number
Nancy Pau (978) 465-5753 x211
Project Description:
(Up to 250 words)
We continued control of perennial pepperweed within the Parker River NWR and the Great Marsh, a region stretching from the New Hampshire seacoast to Cape Ann in Massachusetts. Perennial Pepperweed is a relatively new invasive in New England currently reported in New Hampshire, Massachusetts and Connecticut. Early detection and treatment will likely lead to control of pepperweed. Japanese knotweed control continued on refuge and neighboring properties with follow-up treatments and monitoring.
List of Invasives Species Targeted:Common NameScientific Name
  Perennial Pepperweed Lepidium latifolium
Project Status: Completed
Project Completion Date
or Estimated Completion Date:


Volunteer Affiliation:
(Check all that apply)
VA_Scouts    VA_SchoolGrp                    VA_CivicOrg       
Volunteer Involvement:
Describe the type of work the volunteers performed. (Up to 150 words)
Volunteers mapped pepperweed in the winter, spring and summer. From May to October they hand pulled pepperweed removing as much root as possible. All visible pepperweed was removed-both bolting stems and rosettes.
Total Number of Volunteers: 81
Total Number of Volunteer Hours: 304
List both new and existing partnerships utilized in this project. (Up to 150 words).
The pepperweed project utilized many volunteer groups including the Gulf of Maine Institute Team from Newburyport, Ipswich High School students, Essex 5th grade students, Essex Girl Scout Troup 184, Essex Boy Scouts and UMass Boston graduate students. Other volunteers include community members, local landowners, and staff from Eight Towns and the Bay, the Mass Bay's program, Massachusetts Audubon Society and Plum Island Kayaks. Knotweed partners include the Massachusetts Audubon society, Historic New England and the Massachusetts Department of Conservation and Recreation. 34 landowners granted FWS/Audubon permission to control pepperweed and/or knotweed on their property. The local newspaper, Daily News, provide much outreach for these projects through announcements and various featured articles.


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 75% of the Great Marsh. Two winter mapping workshops resulted in the identification of an additional 40 sites. 3.5 acres of pepperweed were treated on the refuge and 4.5 off the refuge. Time spent pulling pepperweed was less in 2007 than 2006 at 2 of 3 sites where the comparison was possible. 4 sites which were treated with herbicide in 2006 did not have pepperweed in 2007. Several volunteers adopted sites in their local to clear of pepperweed. These volunteers also introduced the problem of pepperweed to their neighbors. We created a pepperweed identification card to distribute in the community and Great Marsh Weed Warrior t-shirts for project members. 4 knotweed sites covering 3 acres received follow up herbicide application with a 5% Rodeo solution. Plot monitoring showed >95% knotweed control at the 2 refuge sites and 50-75% control at 2 privately owned sites. We also noticed many native plant species growing at control sites which used to have 100% knotweed cover.
Number of Acres Treated: 8.5 ac. (pepperweed) + 3 ac. (knotweed)
Number of Acres Inventoried and/or Mapped: 15,000 ac. (pepperweed) + 5 ac. (knotweed)
Number of Acres Restored: 1200 ac.


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 $40 0.3%
Biocontrol Agents
Volunteer Stipends
Volunteer Coordinator Salary/Contract $11960 99.7%
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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