©2012 Iowa Soybean Association - Full Site
Partially funded by the soybean checkoff.
Written and edited by Kristine Schaefer, Daren Mueller, Adam Sisson, Rich Pope, Clarke McGrath and Bob Hartzler.
Additional editing by David Wright, Tamsyn Jones, Greg Tylka, Karen Simon, LeAnn Strother and Dawn Refsell.
Illustrations by Kaitlin Lindsay, Azusa Okawa, Jamie Rippke, Jessica Thompson and Stephen Robinson with oversight by Lynn Clarke (grass identification).
Graphic design by Gary Usovsky.
Photo credits:
Iowa State University – Kristine Schaefer and Bob Hartzler,
except where noted.
University of Illinois – Star of Bethlehem images.
University of Missouri Weed ID Guide – Field pansy images.
. . .and justice for all
The U.S. Department of Agriculture (USDA) prohibits discrimination in
all its programs and activities on the basis of race, color, national origin,
gender, religion, age, disability, political beliefs, sexual orientation, and
marital or family status. (Not all prohibited bases apply to all programs.)
Many materials can be made available in alternative formats for ADA
clients. To file a complaint of discrimination, write USDA, Office of Civil
Rights, Room 326-W, Whitten Building, 14th and Independence Avenue,
SW, Washington, DC 20250-9410 or call 202-720-5964.
Issued in furtherance of Cooperative Extension work, Acts of May 8 and June 30, 1914, in cooperation with the U.S. Department of Agriculture.