Evaluation of Imazapic Soil Persistence and Carryover Potential as Affected by Lime and Cover Crop

hnazapic (Cadre) is a commonly used peanut herbicide that effectively controls many troublesome weeds such as sicklepod, FL beggerweed, nutsedge, morningglory and grasses. It has both PRE and POST activity. However, the persistence of imazapic in soil is usually long and can be highly variable among different soil types and locations. hnazapic carryover injury has been frequently reported in cotton and vegetable production in the Southeast. Many research studies have evaluated its injury potential on sensitive crop species. Nevertheless, the persistence of imazapic in soil and key factors affecting its persistence under field conditions are still not fully understood. Many field observations of imazapic carryover injury seemed to be random and weather dependent.