Resource Management

Pest & Weed Management

Pests are organisms that are capable of harming humans, animals, plants or the environment. Pests include a variety of organisms ranging from microbes to plants to animals. Weeds and invasive plants cause harm by competing with native plants. Invasive plant species grow and reproduce rapidly, causing major changes in vegetative cover wherever they become established. Left unchecked, invasives can overtake desirable plants and significantly degrade grasslands, wetlands and woodlands.


A fourfold approach is used to manage most pests:


1. Prevention

Prevention begins with excluding new invasive species from Minnesota. Education is critical to prevention; this includes educating the public on risks of transporting pests in firewood.


2. Early Detection

Detection surveys help find pests before they become established.


3. Rapid Response

If an invasive pest is detected it is critical to quickly determine the extent of the infestation and contain it to limit the spread.


4. Integrated Pest Management

Established plant pests result in significant economic and environmental damage each year in agronomic and horticultural crops as well as in natural and recreational areas. Losses occur from pest damage as well as from costs associated with actions taken to mitigate that damage. Integrated Pest Management is a balanced approach to pest management which incorporates the many aspects of plant health care/crop protection in ways that lessen harmful environmental impacts and protect human health by providing effective management tools for producers, land managers, governmental agencies, schools, communities and home owners.






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