Noxious and Invasive species treatment tips and links
Basic Concepts of Weed Management to Consider
- Be persistent; think long-term - No quick fix for weed problems
- Manage small infestations immediately - Small weed populations can be managed quickly and efficiently.
- Contain large weed infestations - Large weed populations take many years to manage, avoid the spread of existing infestations.
- Education of the public is important - Inform landowners on key weed problems and how to identify important weeds.
- 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
MN Dep of Agriculture Noxious Weed Page
USDA Introduced, Invasive and Noxious Plants