DOUGLAS COUNTY: Brule River Yellow Flag Iris EDRR Project
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Purpose

Douglas County aims to map and manage populations of Yellow Flag Iris within the upper reach of the Bois Brule River. This will include Early Detection surveys following DNR protocols, selective chemical and manual removal treatment, and generation of maps. Deliverables include: Results of this project will be a control summary, including herbicide and manual removal treatment records, survey results, and creation of maps within the project boundaries. Special Condition: Locational data should be entered into SWIMS. The specific objectives, metrics, and deliverables for the listed activities are included in the application and supporting materials, and this scope is not intended to replace or supersede those documents. If consultant is to provide final report, it is recommended that Grantee provide DNR Lake Coordinator with a draft for comment on report adequacy prior to making final payment to the consultant. DNR to receive both paper and electronic .pdf copies of the final report along with, or prior to submission of grantee's final payment request

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Aquatic Invasives Grant
Aquatic Invasives Early Detection and Response
AIRR27322
2021
Complete
 
Reports and Documents
Successfully dessicated YFI after digging 2
After manually digging out Yellow Iris plants and all rhizomes with surrounding soil, plants are placed above the high water mark on fallen trees or brush to desiccate in-situ. This photo shows successful desiccation and death of plants that have been drying for about one month.
Volunteers assist YFI control on the Brule
Douglas County volunteers preparing to assist with manual control of Yellow Flag Iris as part of the Brule River YFI EDRR Project. June 15, 2022.
YFI before control (Blacks Landing Brule EDRR)
Volunteer assists Douglas County Brule River EDRR Project
Local volunteer Reed Schwarting assists Douglas County AIS Specialist Zach Stewart in manual control of Yellow Flag Iris on the Bois Brule River in Douglas County. October 2022.
More YFI rhizomes
More YFI rhizomes dug out during manual control Sep 2022.
Successfully dessicated YFI after digging 1
After manually digging out Yellow Iris plants and all rhizomes with surrounding soil, plants are placed above the high water mark on fallen trees or brush to desiccate in-situ. This photo shows successful desiccation and death of plants that have been drying for about one month.
Huge yellow iris with hat for scale
A large Yellow Iris cluster on the Brule River in our EDRR project area. Hat for scale. Sep 2022
A large YFI Rhizome
Douglas County staff Zach Stewart holds a large YFI rhizome dug up during manual control of YFI on the Bois Brule. These rhizomes have a distinctive pink color on the inside. Sep 2022.
A large Yellow Iris Rhizome
Douglas County staff Zach Stewart with large Yellow Iris Rhizome dug up during manual control of Yellow Iris on the Brule River in Sep. 2022.
Volunteer helping with manual control
Local volunteer Will F. helps Zach with manual control efforts near Camp road on the Brule River.
Landowners help Zach control YFI on Brule
Douglas County AIS Specialist Zach Stewart with volunteers assisting manual control of Yellow Flag Iris as part of the Brule River YFI EDRR Project. Aug 2022.
Zach holding YFI
AIS Specialist holding up a "trophy" Yellow Iris while conducting manual control work on the Brule River.
Landowners help control YFI
Local landowners help AIS Specialist Zach Stewart remove Yellow Flag Iris from private property along the Bois Brule.
Irises lined up for desiccation
Yellow Flag Iris plants after manual digging are lined up on a deadfall log for in-situ desiccation, which kills the vegetation and rhizome.
Volunteers assist manual control on private lands
Volunteers assist with manual control of yellow iris on private property along the Brule River. About 8 canoe loads of this size were removed this day.
Marking YFI for control
Douglas County AIS Specialist Zach Stewart marks Yellow Flag Iris for manual control as part of the Brule River YFI EDRR Project. June 15, 2022.
Volunteer assissts YFI manual control on the Brule River
Douglas County AIS Specialist Zach Stewart directs volunteers assisting manual control of Yellow Flag Iris as part of the Brule River YFI EDRR Project. June 15, 2022.
Presentation: Yellow Iris management on the Brule
A powerpoint presentation detailing mapping, surveillance, plans and preliminary control work on the Brule River Yellow Flag Iris EDRR project. Dating from March 2022.
Yellow Iris in flower during inital mapping on the Brule
Yellow Iris flowering during initial mapping of the 35km long project area conducted during 2021.
Mapping YFI June 2021
AIS Specialist Zach Stewart maps YFI locations in project area June 2021.
Monitor/survey with TNC staff
Initial monitoring and mapping of the 35km project area for Yellow Iris with TNC staff Steph Judge.
Mapping YFI June 2021
AIS Specialist Zach Stewart mapping YFI locations in project area June 2021.
 
Activities & Recommendations
Grant Awarded
Grant AIRR27322 awarded
 
Watershed
Bois Brule River
 
Waters
Big Lake
Monitoring Data
Lake Details
Bois Brule River
Monitoring Data
Little Bois Brule River
Monitoring Data
Lucius Lake
Monitoring Data
Lake Details
Spring Lake
Monitoring Data
Lake Details
Unnamed
Monitoring Data
Lake Details