Which of the following precautions should be monitored when using herbicides?

When using herbicides, it is essential to monitor usage restrictions on treated water because these restrictions ensure that the herbicides do not contaminate water sources that could be harmful to aquatic life or humans. Many herbicides have specific guidelines on how long the treated water should be restricted from use for drinking, irrigation, recreation, or livestock. This precaution helps prevent direct exposure to potentially harmful chemicals and ensures that the herbicides do not adversely affect the ecosystem, particularly in aquatic environments where sensitive species may be affected.

Monitoring air quality, stormwater runoff, and temperature fluctuations are indeed important in various contexts of pesticide application. However, the focus on usage restrictions specifically relates to safeguarding water sources after herbicide application, making it a critical aspect of responsible herbicide management and aquatic pest control measures.