US Patent 7094734 Granular herbicide

This invention provides a granular herbicide for direct foliage application to undesirable plants, which contains a water soluble, non-selective foliage-application type herbicidally active compound as the active ingredient, having an average granule size within a range of 0.21–1 mm and an elution ratio of said active ingredient of at least 20% when 20 mg of the granular herbicide is treated with a circular filter paper sheet of 55 mm in diameter which is impregnated with 50 μl of water.