The 108-page booklet includes tools to aid in accurate weed identification as well as weed lifecycle and herbicide management and stewardship information. It includes over 35 illustrations and more than 250 high-quality photographs of weeds found in Iowa. Source: Iowa State University. Links embedded on this page may take you away from the Take Action website. The United Soybean Board/Take Action is not responsible for the content and/or claims made by websites not overseen by the soy checkoff.