Which herbicide is a widely used algaecide that reacts quickly with other compounds in water?

The herbicide known as a widely used algaecide that reacts quickly with other compounds in water is copper. Copper-based algaecides work by disrupting the cellular processes of algae, leading to their death. These products release copper ions into the water, which interact with the algae and can also bind to other substances present in the aquatic environment. This rapid reaction is crucial because it allows for effective control of algal blooms, which can be detrimental to water quality and aquatic ecosystems.

When choosing algaecides for use in aquatic environments, the speed of action is often a significant factor, particularly in situations where quick responses are necessary to control algae growth. The effectiveness of copper as an algaecide is well-documented, making it a go-to option for many aquatic management professionals facing algae issues.

Other options, such as diquat and fluridone, are primarily used as herbicides for controlling submerged and emergent aquatic plants rather than algae. Glyphosate is primarily a systemic herbicide for terrestrial plants and is not typically used for algae control.