HAMILTON COUNTY INVASIVES PARTNERSHIP (HIP)
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  • HOME
  • JOIN
  • Stop Invasives
    • Top Invasives & Native Alternatives
    • Boot Brush Stations
    • Invasive Trade In Program
    • #invasivesbucketchallenge
    • Invasive Species GIS Program
    • Native Nectar
    • Strike Team
  • Grow Natives
  • Resources
    • Education
    • Management
    • 2020 Hamilton County Invasive Species Survey Results
    • HIP Blog
  • Events & Volunteering
    • Events
    • HIP Meetings
    • Weed Wrangles >
      • Volunteer at a Weed Wrangle
      • Register a Weed Wrangle
    • Strike Team
  • Donate
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Invasive Management

Invasive species management is the key to keeping invasives at bay and encouraging native growth. Invasives may never be fully eradicated, but they can be managed to make minimal impacts on the environment, human health, and the economy. There are different types of management, each with their own pros and cons. 
​

Types of Management

There are typically two main types of management: physical and chemical management.
  • Physical management is the act of manually removing invasive species by hand or with tools. This process usually relies on removing the entire plant, including the root, in order to stop regrowth or re-sprouting.
  • Chemical management is the act of using a herbicide to kill invasive species. There are many different types of herbicide and ways to use it, including foliar spray, cut surface treatment, and basal bark treatment. 
Many people have environmental concerns about herbicide. When using the correct product, at the correct strength and amount, chemical management can be very safe. Herbicide is a key tool in invasive species management and can be impactful in reducing the effect of invasive species in the environment. The impact of herbicide is often minor when compared to the impact of unmanaged invasive plants. 

Some invasives are classified as Noxious Weeds and must be removed according to the Destruction of Detrimental Plant Law. 

What Method to Use

Invasive species survey
HIP and the Hamilton County SWCD can offer invasive species assessments and help you develop a plan for effective invasive species control.  Large parcels and woodlands are prioritized for this service.  Contact HIP at hcinvasives@hamiltoncounty.in.gov
Often the decision between physical and chemical treatment of invasives comes down to scale. For example a small bush honeysuckle may be easily removed by hand, but larger ones may need to be cut and treated. Or in terms of area, a small patch of purple wintercreeper in your landscaping may be removed by hand, but an acre may need to be treated with a foliar spray application. 

Beyond the question of scale, removal methods for invasive species vary widely depending on their reproduction and ecology. Additionally, it takes maintenance to keep invasive species from recolonizing an area. Establishing native species after removal can help keep invasives at bay.  The resources in this section will help you answer the key questions: What do I do? How do I do it? And what resources can I use to get the tools and information I need?
Management/Control Methods
How to prioritize invasive plant removal
Prioritizing Invasive Removal Webinar
Our friends at Southern Indiana Cooperative Invasives Management have created a landowners toolkit for invasive identification and removal. This collection of resources is a great place to start.  These control and management guides are also great resources. 
The SICIM calendar of control treatment calendar is a great way to visualize what time of year, what management style, and herbicide is best for different species. 


A study on the potential carcinogenic effects (or lack there of) of glyphosate was published in 2021. You can read a summary of that study here. 

Information by Species

Asian bush honeysuckle
​Canada thistle
​Multiflora rose
Border privet
​Japanese knotweed
Asian bittersweet
White and Yellow Sweet-clover
Poison hemlock
​Tree-of-heaven
Callery pear
​Garlic mustard
​Autumn olive
Common teasle
​White mulberry
Reed canarygrass
​Tall fescue
​Crown vetch
Burning bush
Wintercreeper
Vinca
English ivy
​Burning bush
Japanese honeysuckle
Swallow-worts
​Japanese barberry
Dame's rocket
Emerging invasive species in Hamilton County Indiana

Management Tools and Resources

The Hamilton County Soil and Water Conservation District Tool Loan Program has weed wrenches available for free check out to Hamilton County residents. These tools use leverage to remove invasive species shrubs by the root. Learn more and make a reservation online!
SWCD tool loan program
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Invasive Removal Contractors
Contractor Submission

Report Invasives

Reporting invasives to the correct place is key in invasive species management. 

Invasives along interstates: Include all information on form and species, if possible. 

Video Resources

SICIM invasive control playlist
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HIP is a project of the Hamilton County Soil and Water Conservation District
​www.hamiltonswcd.org
CONTACT US:
hcinvasives@hamiltoncounty.in.gov
317-773-2181
1717 Pleasant St. Suite 100
Noblesville, IN 46060