Which herbicide is specifically mentioned for algae control in Washington?

Copper sulfate is specifically mentioned for algae control in Washington because it is commonly used in aquatic environments to manage algal blooms. Algae can proliferate in water bodies, leading to oxygen depletion and harming aquatic life. Copper sulfate acts as an algaecide by disrupting cellular functions in algae, effectively reducing their population and improving water quality.

The use of other herbicides, while effective for different types of vegetation management, doesn't directly address the specific needs for algae control in Washington waters. Triclopyr is primarily targeted for controlling woody and certain aquatic plants, glyphosate is a non-selective herbicide effective primarily on terrestrial plants, and acrolein is used for control of various aquatic plants but is not specifically recognized for algae. Therefore, copper sulfate stands out as the targeted solution for algal issues in this context.