In what circumstances can you mix two pesticides legally?

Mixing two pesticides is legally permissible when it is specifically mentioned on the product label. This is because pesticide labels are designed to provide critical information regarding the safe and effective use of the product, including instructions on how and when to mix it with other substances. Mixing products according to label directions ensures compliance with legal regulations and safety standards, thereby minimizing the risks associated with improper application.

When the label specifies that a product can be mixed with another, it generally includes information about compatibility and the potential effects of the mixture, such as efficacy and safety for both the user and the environment. Labels also might contain warnings about any potential adverse reactions that could occur when mixing, ensuring that users are well-informed.

In contrast, the other options do not provide legitimate grounds for mixing pesticides. Regulations prohibit mixing products that are both banned, regardless of their toxicity or training received. Training alone does not dictate the legality of mixing unless aligned with label instructions. Lastly, not all low-toxicity products can be mixed; safety and compatibility must always be verified against the product labels.