Which method is not allowed for the application of OUT?

Chemigation, which refers to the application of pesticides through an irrigation system, is not allowed for the application of OUT due to potential risks to water quality and environmental safety. This method can lead to contamination of both ground and surface water systems, which is a significant concern associated with pesticide usage. Other application methods, such as broadcast, spot, and band applications, are typically more controlled and allow for more precise targeting of the areas needing treatment. Therefore, they are considered safer options that minimize unintended exposure and environmental impact. Understanding the specifics of why chemigation is restricted helps emphasize the importance of adhering to guidelines designed to protect public health and the environment when applying pesticides.