Adsorption, desorption and persistence of fomesafen in soil.

Background: Fomesafen provides control of glyphosate-resistant Palmer amaranth in cotton but frequent seedling injury has been reported. This study evaluated soil adsorption, desorption, and field persistence of fomesafen.

Results: The Freundlich distribution coefficient (K ) for fomesafen on seven US soils varied from 1.