Abstract Background Acetyl-CoA carboxylase (ACCase) enzyme inhibitors are post-emergent herbicides recommended for the control of sourgrass ( Digitaria insularis ). Water stress can influence the physiological processes and the effectiveness of these herbicides in weeds. Objective The objective of this work was to evaluate the effectiveness of ACCase enzyme inhibitors in the control of sourgrass after different periods of water restriction. Methods The treatments were organized in a factorial scheme (8×4). Factor A was composed of periods of water suspension […]