DCNR Invasive Exotic Plant Tutorial for Natural Lands Managers

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Management and control tools

After assessing which invasive plant species are to be targeted for management, evaluating options for control is the next step in the Adaptive Management Approach. There are a number of tools available to land managers. They include everything from manually or mechanically removing plants to using biocontrol or chemicals. Understanding the biology of the targeted plant, as well as population size, degree of threat and tools that have proven successful by other practitioners should all play in to your decision of what tools to use.

In most cases, more than one tool will be necessary to control your target. Integrated Pest Management (IPM) is an approach to controlling pests in safer, more effective, longer-lasting ways and is an approach that we promote and encourage in this tutorial. When you use IPM, you:

a) understand a pest's identity and habits so non-toxic, preventative measures can be used first
b) use a combination of different tactics for better effectiveness
c) use least-toxic chemicals, if any

Any tool chosen must be used at the right time and place to be effective. Keeping track of invasive populations before they get out of hand is also important to avoid "emergency" situations, which may require pesticide use (The Pennsylvania Integrated Pest Management Program). IPM is a best management practice and results in the least amount of impact to humans and the organisms and natural resources on the land and waters where invasive plants are being controlled.

The various management tools presented in the section include Manual and Mechanical approaches to control, Prescribed Fire, Grazing, Biocontrol and Chemicals. Prevention and Early Detection, as well as Restoration are often considered management tools. Depending on how you approach your management planning, you may want to consider them as control options.

 

SOURCE: The following information is taken from The Nature Conservancy, Invasive Species Initiative (TNC-ISI), Weed Control Methods Handbook: Tools and Techniques for Use in Natural Areas by Tu. M, C. Hurd and J.M. Randall. April 2001. This handbook can be accessed at http://tncweeds.ucdavis.edu > Invasives and Control Methods > Weed Control Methods Handbook. NOTE: This information may be updated periodically. Visit the website to check for updates.

Management Tools

Manual and Mechanical

Grazing

Prescribed Fire

Biocontrol

Chemical

Aquatic Plants