Which of the following information about a pesticide-treated field is not required to be displayed at a central location?

The requirement for displaying information about a pesticide-treated field at a central location is designed to ensure safety and accountability within agricultural practices. This information allows for quick access in case of an emergency—such as a spill or health incident—and helps to keep track of pesticide use.

The name of the pesticide used, the amount of pesticide applied, and the date of application contribute to this accountability and safety. They provide critical information needed to assess potential exposure or risks associated with the pesticide.

However, while knowing who made the application is important, it is not mandated to be on display at the central location according to the regulations. This aspect of identification may be recorded for internal records or accountability but does not have to be publicly posted as part of the essential information required by law. Therefore, the name of the person who made the pesticide application does not have to be displayed prominently in the same way as the other information, which is why this is the correct answer.