What group is responsible for overseeing pesticide regulations in Iowa?

The Iowa Department of Agriculture and Land Stewardship is the primary agency responsible for overseeing pesticide regulations in Iowa. This department enforces state laws regarding pesticide use, licensing of commercial applicators, and ensuring safe application practices to protect human health and the environment. They are tasked with the regulation of pesticide sales and use, education for applicators, and compliance enforcement, making them the key authority on pesticide matters within the state.

The other organizations mentioned have different focuses. The Environmental Protection Agency (EPA) sets federal regulations and guidelines for pesticides, but it is not specifically an Iowa agency. Iowa State University is a center for research and education but does not have regulatory authority over pesticides. The Iowa Department of Health is concerned with public health issues, including those related to chemical exposure, but it does not directly regulate pesticide use. Therefore, the Iowa Department of Agriculture and Land Stewardship stands out as the correct answer, as it is the agency tasked with implementing and enforcing pesticide laws at the state level.