What is the dry formulation of herbicide that is impregnated on small particles called?

The dry formulation of herbicide that is impregnated on small particles is known as granules or granular (G). This type of formulation is designed to allow for more even distribution of the herbicide when applied to the soil or turf. The small particles provide a surface area that can hold the herbicide, allowing it to gradually release the active ingredient into the surrounding environment, which can enhance its effectiveness over time.

Granules are often preferred in certain applications because they are easy to handle and apply. They can also be beneficial in reducing the risk of drift, as the larger particles fall to the ground rather than being carried by the wind. Additionally, the slow release feature helps in maintaining effective weed control over an extended period, providing a longer-lasting solution than some other formulations.

Other options like paste, liquid concentrate, and suspended granules refer to different forms of herbicide. Paste is typically a thick substance and not commonly used for granular applications. Liquid concentrates require mixing with water before application, which is different from the dry granule form. Suspended granules represent a formulation that is designed to remain suspended in a liquid, which again is a different application method than what is described in the question.