Diquat is a chemical herbicide commonly used to control weeds and aquatic plants. It works by disrupting the photosynthesis process in plants, leading to their death. Diquat is often applied in agricultural settings, as well as in managing vegetation in water bodies. This herbicide is typically used in a liquid form and can be effective against a wide range of unwanted plants. However, it is important to handle Diquat with care, as it can be toxic to humans and animals if ingested or improperly applied. Proper safety measures should always be followed when using this chemical.