A new publication on Palmer amaranth, one of the most aggressive weeds to compete with crops, is now available for free through Purdue Extension’s The Education Store.

Palmer Amaranth Biology, Identification and Management was created by Purdue Extension weed scientists Bill Johnson and Travis Legleiter in an effort to curb the weed’s expansion to the northern U.S. The 11-page publication can be downloaded at www.the-education-store.com.

Palmer amaranth is a green, hairless, flowering weed with multiple seed heads. In recent years, Palmer amaranth has spread north to Indiana, Ohio, Illinois and Michigan.

The publication offers management recommendations based on research from the South and Michigan State University since this is a relatively new problem in Indiana.