Penoxsulam is marketed under the product Galleon. Which statement best describes its formulation and target?

• A. Galleon is a liquid, selective systemic herbicide for broadleaf aquatic plants.
• B. Galleon is a granular herbicide for all aquatic plants.
• C. Galleon is a dry powder for submerged grasses.
• D. Galleon is a non-selective contact herbicide.

Answer: (A)

Penoxsulam in Galleon is a liquid formulation designed for aquatic use, taken up by plants and moved within the plant (systemic). It targets broadleaf aquatic weeds specifically, meaning it is selective for broadleaf species rather than grasses or many submerged monocots. This systemic action allows it to kill the entire plant from the point of absorption, including roots, which is more effective for broadleaf weeds than a simple contact approach. The product is not a granular or dry powder, nor is it non-selective, so the statement describing a liquid, selective systemic herbicide for broadleaf aquatic plants best fits how Galleon works.