Which of the following pesticides does not require certification for its activities, according to the text?

The reason ultimate disposal does not require certification is that it typically pertains to the proper disposal of pesticide containers and residues rather than the application or handling of pesticides themselves. Regulations around pesticide use often require individuals to be certified to handle, mix, or apply pesticides due to the potential hazards associated with these actions. Certification ensures that the individuals understand the safe handling, application methods, and environmental impact of the pesticides they work with.

In contrast, ultimate disposal generally involves following guidelines for discarding materials safely and properly, which can often be outlined by local waste management authorities rather than requiring specialized training or certification. Thus, while it's critical to manage waste responsibly to avoid environmental harm, the process of disposing of used pesticides and containers might not necessitate the same level of certification that mixing, application, or transportation do.