University of Illinois

No. 13/June 19, 1998

Multi-State Soybean Herbicide-Efficacy Tables

Earlier issues of this Bulletin contained multi-state corn herbicide-efficacy tables as compiled by Marshal McGlamery. In this issue, we present multi-state soybean herbicide-efficacy tables for grass weed control. In a future issue, we will conclude this series of articles with multi-state soybean herbicide-efficacy tables for broadleaf weed control. For a description of how these tables were composed, please refer to the April 24 issue of this Bulletin.

The last column in these tables is an "average" or mean value of the various state ratings for a particular product. Due to subtle differences in various states' numeric and letter scales, the mean value data has been slightly modified according to the scales used by various states.

Tables 1 to 6: Barnyardgrass, crabgrass, woolly cupgrass, giant foxtail, yellow foxtail, fall panicum

Tables 7 to 12: Sandbur, shattercane, rhizome johnsongrass, quackgrass, wirestem muhly, yellow nutsedge

Aaron Hager ( and Marshal McGlamery (, Crop Sciences, (217)333-4424