In which instances is seed treatment not required to be disclosed?

The correct answer is based on the understanding of regulations regarding seed treatment disclosures under California Seed Law. When a treatment is characterized as benign, meaning it poses no risk to human health or the environment, it does not necessitate the same level of disclosure as other treatments that may have potential risks. This is rooted in the principle that transparent communication is prioritized for treatments that could potentially have harmful effects. Since benign treatments are considered safe, the requirements for labeling or disclosure are relaxed to avoid unnecessary alarm over treatments that do not pose a threat.

In contrast, treatments that enhance growth or are applied after purchase may still have implications for how seeds are perceived and used, thus requiring disclosure to inform consumers accurately. Likewise, selling seeds in bulk can still involve treated seeds; thus, the need for disclosure remains relevant regardless of the quantity sold, particularly for treatments not classified as benign.