terrestrial_invasives.png

Noxious and Invasive species treatment tips and links

Basic Concepts of Weed Management to Consider
  1. Be persistent; think long-term - No quick fix for weed problems
  2. Manage small infestations immediately - Small weed populations can be managed quickly and efficiently.
  3. Contain large weed infestations - Large weed populations take many years to manage, avoid the spread of existing infestations.
  4. Education of the public is important - Inform landowners on key weed problems and how to identify important weeds.
  5. Use an IPM approach when possible - Integrated Pest Management techniques used together, have shown greater results than using one weed management technique alone.
Common Management Practices
  • Pre-emergent Herbicides - Used in early spring mostly in agricultural crops
  • Spring and Fall Tillage - Successfully controls many weeds in agricultural fields
  • Spring and Fall Burning - Enhances the growth and development of desirable plants for increased plant competition in natural areas and rights-of-ways
  • Biological Control - Works well on large established stands of leafy spurge, purple loosestrife, spotted knapweed, and garlic mustard
  • Contact Herbicides - Most effective when used to treat emerging seedlings, rosettes, and perennial plants in the early spring and fall
  • Pre-seed mowing - Reduces flower and seed production of many weed species; can also be a major factor of weed seed spread if performed after seed development
  • Woody Perennial Treatment - Cutting and/or pulling of woody species like buckthorns can be effective if cuttings are followed with stump treatments and spot-spraying of emerging seedlings

Helpful Links:

MN Dep of Agriculture Noxious Weed Page

USDA Introduced, Invasive and Noxious Plants



Discover PRWD
I am a...

Upcoming Meetings and Events


PRWD in the News

MPR News Story on PRWD Flowering Rush Project

Dan Gunderson, MPR News, visited Lake Sallie with Brent Alcott to discuss the success of the…

MnDNR begins ZM pilot project treatment

Water Management Plan Update

The Pelican River Watershed District Board of Managers is seeking your input to help us with…

View All


Recent Water Levels
Detroit 1334.03 ft
Last Updated: 11/1/2017
Floyd(s) 1354.10 ft
Last Updated: 11/1/2017


Melissa 1327.86 ft
Last Updated: 11/1/2017
Sallie 1328.94 ft
Last Updated: 11/1/2017

Connect with Us