Marengo is a pre-emergent, selective liquid herbicide that offers long-term residual control of both grassy and broadleaf weeds on ornamentals grown in production nurseries, including those grown in-ground and in pot-in-pot containers. Marengo may also be used on conifers, Christmas trees and greenhouse floors. Marengo can be used in ornamental production sites and hardscapes and is labeled for use in shadehouses and hoophouses in areas covered by landscape fabric, rock or under benches. With the new active ingredient indaziflam, Marengo offers unparalleled, season-long control of many hard-to-control broadleaf weeds such as bittercress, groundsel, oxalis, marestail, and spurge. Marengo also controls tough grassy weeds such as crabgrass, annual bluegrass, and annual sedge. Marengo demonstrates early post-emergence activity against some weeds, including annual bluegrass, crabgrass, and oxalis. Rate of use:Marengo use rates range from 7.5 to 18.5 fl. oz. per acre, depending on soil type and conditions. Marengo should be applied in a minimum of 10 gallons of water per acre (one quart of water per 1,000 sq. ft.). Active ingredient: 7.4% Indaziflam More Information
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