Which of the following is a restricted use pesticide in most formulations?

Tordon is categorized as a restricted use pesticide in many of its formulations due to its potential for significant environmental impact and the risk it poses to non-target species. This classification is generally applied to pesticides that may have a higher toxicity level, require specialized knowledge for safe handling, or pose risks of groundwater contamination or harm to aquatic life.

In the case of Tordon, which contains the active ingredient picloram, it is primarily used for controlling broadleaf weeds and brush but has a very high persistence in the environment. This longevity can lead to long-term effects on soil and water systems if used improperly.

Understanding the significance of restricted use designations is crucial for ensuring safe application and compliance with regulatory measures that aim to protect public health and the environment. Proper training and certification are often required for those who use restricted pesticides to ensure they are qualified to handle them responsibly.

In contrast, Transline, Vista, and Garlon, while they may also be used in a variety of settings, do not necessarily share the same level of restriction across all formulations, thus making them less regulated compared to Tordon.