Extension Publications

Tips for collecting weed seeds (Ensure your resistance sample gets tested)



Weed samples can be submitted to MSU Diagnostic services for resistance screening (scroll to the bottom).





Palmer Amaranth and waterhemp in Michigan (Glyphosate- and multiple herbicide-resistant)

 Keys to Identification (MSUWS01-2013)





Keys to distinguishing Palmer amaranth from other species (MSUWS03-2012)







Confirmation and management of Glyphosate-resistant Palmer Amaranth (MSUWS02-2012)



 Keys to management of multiple-resistant Palmer amaranth and waterhemp in soybean, corn and alfalfa (MSUWS06-2015)







Horseweed (marestail)

Herbicide-resistant horseweed (marestail) in Michigan: Keys to management in no-till soybean (MSUWS08-2016)








Common windgrass

Common windgrass in Michigan








An IPM Pocket Guide for Weed Identification in Field Crop (E-3081)

For a pdf copy of the bulletin...

 Visit www.ipm.msu.edu/weeds-field.htm

 To order a hard copy of the bulletin...

 Visit MSUE Bookstore (Inventory # E3081)

 Call (517) 353-6740 (Inventory # E3081)








  • Corn and Soybean Herbicide Chart -This chart provides useful information about the mode of action of corn and soybean herbicides. Utilizing different modes of action can reduce the incidence of weed resistance.