NEW ULM — Invasive species — non-native plants, animals and other living organisms that cause or are likely to cause harm to the environment, economy, or human health, may be more costly that most people think. They cost Minnesotans about $3 billion a year in lost productivity and increased management costs. The national annual cost is about $150 billion, according to a University of Minnesota source presented by Minnesota State University Mankato biology instructor Jordy Veit. Speaking at a CAST (Community and Seniors Together) program at the New Ulm Community Center Thursday, Veit ...