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Aquatic Plant Monitoring Contacts
Aquatic Plant Research > Invasives > Management and Control > Eurasian Watermilfoil (EWM) Control

Aquatic Plant Research Eurasian Watermilfoil (EWM) Control

Eurasian watermilfoil is an invasive species that is found across the state. In some waterbodies where it is found, there is a desire to control the growth of this plant. DNR Science Services are investigating multiple control methods in order to determine both efficacy and possible unintended effects.

Large Scale Management

DNR Science Services staff are studying the effects of whole-lake management techniques on the control of invasive aquatic species and impacts to the native communities.



Small Scale

DNR Science Services researchers are studying the effects of small- scale management techniques on the control of invasive aquatic species and impacts to the native communities.



Synthesis of Current Research on Control of Invasive Aquatic Species

Following several years of data collection, DNR Science Services researchers are synthesizing the findings of different treatment strategies to determine the most effective way to approach Eurasian watermilfoil management in the state of Wisconsin.



Large Scale Management
EWM 2,4-D
    Continued Research on Large Scale 2,4-D Treatments
    Efficacy, Selectivity, and Herbicide Concentrations after a 2,4-D Whole-lake Application
    Large Scale Chemical Management Fact Sheet
    Large-scale Herbicide Treatments in Wisconsin Lakes
EWM Fluridone
    County Collaboration - Providing Technical Consultation
    Effects of Whole-lake Herbicide Treatment of EWM
    Lake Tides Article - Dose of Science
    National Fluridone Review
    Susceptibility Database
Small Scale
Biological Control
    Weevil Study
EWM 2,4-D
    Small Scale Fact Sheet
Mechanical Control
    Final Report of Early Season 2,4-D Herbicide and Deep Harvesting Treatment Effects on EWM
    Public Meetings Provided for the Small-scale Early Season 2,4-D Herbicide and Deep Harvesting Treatments
    Summary of Small-scale Early Season 2,4-D Herbicide and Deep Harvesting Treatment
Synthesis of Current Research on Control of Invasive Aquatic Species
EWM Long-term Ecological Monitoring Project
Herbicide Concentration Data Collection and Analysis (EWM and CLP)
Long-term Management of EWM Factsheet
Preliminary Report: Large-scale Use of the Herbicides 2,4-D and Endothall to Control Non-native EWM and Hybrid Milfoil in Wisconsin Lakes