Invasive Species Can Affect Us in Many Ways

Invasive species, if left uncontrolled, can and will limit land and water use now and into the future. The longer we ignore the problem, the harder and more expensive the battle for control will become.

The North American Invasive Species Management Association (NAISMA) announces the return of National Invasive Species Awareness Week (NISAW) from February 23–27, 2026, bringing together leaders from government agencies, Tribal nations, nonprofit organizations, academic institutions, and community groups for the nation’s largest cross-sector effort to prevent and manage invasive species.

With this year’s theme, “Defending Our Health by Stopping the Spread,” NISAW 2026 highlights the undeniable link between invasive species and human well-being. Invasive plants, animals, insects, and pathogens increasingly threaten public health, food security, recreation, infrastructure, and ecosystem stability across North America.

Invasive species cost the U.S. more than $120 billion each year. Yet, many of the most effective solutions (early detection, rapid response, behavior-based prevention, and interagency coordination) receive limited attention outside the professional field. We all can have a role in preventing the spread.

Invasive species affect Indiana ecosystems. The Indiana Department of Natural Resources website on invasive species states, “Invasive species are plants, animals, and diseases that are not native to the area in question and have or are likely to cause environmental, human health, or financial harm in Indiana. Many invasive species have entered Indiana or are a threat to arrive in our state. You can fight back by learning the signs, reporting sightings, and taking precautions.”

Locally, Purdue Extension in Wabash County and Whitley County is teaming up to offer a 3-night program in May highlighting invasive species in woodlands. Let us know if you are interested. Contact Geoff Schortgen in Wabash County at 260-563-0661, Ext. 1408, or gschortg@purdue.edu. Contact John Woodmansee in Whitley County at 260-244-7615, or jwoodman@purdue.edu.

The program, entitled “Stewarding Healthy Woodlands, Controlling Invasive Species,” will cover an introduction to invasive species; reporting, recording, and tracking invasive species; invasive forest insects and pathogens; and invasive forest plants. Classroom and outdoor learning activities are planned.

Find program information for this local invasive species program.

An online registration link will be available soon.