Vessel 3-way Herbicide - 2.5 Gal. Vessel 3-way Herbicideis a broad spectrum postemergent broadleaf herbicide containing Trimec developed for use by turfmanagement professionals. Vessel can be used on cool-season and warm-season turf. Broad-spectrum postemergent broadleaf weed control. Quick dandelion curl. Tank mix compatible with most commonly used fungicides, insecticides and spray adjuvants. Exceptional turf tolerance. Rainfast in 24 hours.