Terrestrial invasive species

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Contract, grant and permit requirements

“Come Clean, Leave Clean”

If you are working on DNR lands as part of grant or contract or are working under a permit, your grant, contract, or permit will explain the steps you need to take to prevent or limit the introduction, establishment and spread of invasive species.

Minnesota DNR protects and manages the diverse natural resources of Minnesota. Because invasive species have the potential to adversely affect these natural resources, it is the DNR's policy to limit the introduction of invasive species onto DNR managed lands and waters, limit their rate of geographical spread, and reduce their impact on high value resources.

Operational Order 113 (Invasive Species)PDF icon. sets forth DNR policy and procedures to:

This operational order applies to all DNR resource management activities by employees and non-DNR individuals or organizations on DNR-administered lands and public waters; and activities DNR permits or funds (grants).

Prevent the Spread of Invasive Species

(From pages 3-6 of Op Order 113PDF icon.)

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Cleaning off boots with a boot brush can prevent the spread of weed seeds to natural areas.

Before you arrive at a work site and before you leave:

When moving materials:

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Soil stuck on heavy equipment can bring weed seeds and earthworms to a site.



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A hot-water pressure wash can prevent the spread of aquatic invasive species such as zebra mussels, VHS fish disease, and spiny waterfleas.