What are possible secondary effects from moving water after herbicide application?

Moving water after a herbicide application can lead to temporary contamination of water supplies. This occurs because the herbicides may not have fully degraded or settled into the sediment, and moving water can disperse these chemicals into areas where they can impact non-target organisms or contaminate drinking water sources.

This temporary contamination can affect the water quality and safety for aquatic life and potentially humans if the water is used for consumption or recreational purposes shortly after application. It is critical to manage water movement after herbicide application carefully to minimize these risks.

The other options primarily relate to quite different outcomes of herbicide usage or water movement, such as the potential long-term enhancements to habitats or the control of invasive species, which may not be immediate concerns following the disturbance caused by water movement. The growth of aquatic vegetation, while it may ultimately result from successful management of aquatic plants, is not a direct consequence of moving water immediately after herbicide use.