Embark-Telar-Surfactant-2,4-D Combinations for Vegetation Management Along Indiana Roadsides

摘要

Using a combination of a primary growth retardant, mefluidide, a synergistic additive, chlorsulfuron, a detergent to enhance penetration (X-77) and a herbicide, 2,4-D, to provide for control of broadleaf weeds, full season management of bluegrass-tall fescue mixtures along roadsides has been achieved. A single spray application is made in the spring and no additional herbicide applications or mechanical mowing are needed. The treatment is effective with greater than 90% control of fescue seedheads. The effectiveness and low cost of the combination derives from laboratory and greenhouse observations that various materials, herein referred to as additives, often only weakly effective as growth retardants themselves, will interact synergistically with mefluidide to provide overall treatment effectiveness at application rates that are economical.