What decision must the private applicator make regarding pest control?

The task of a private applicator involves several critical steps in managing pest control effectively. The chosen answer directly reflects the foundational responsibilities of a private applicator. Identifying the pest is crucial because it sets the stage for understanding its behavior, life cycle, and potential impact on crops or livestock. Recognizing when to treat the pest is equally significant as it relies on understanding the pest's life cycle and environmental conditions to achieve maximum efficacy.

Furthermore, selecting the appropriate control methods ensures that the chosen strategy is effective in targeting the specific pest while also considering factors such as safety, environmental impact, and regulatory compliance. This comprehensive approach ensures that pest management is not only effective but also responsible.

The other options may touch on relevant aspects of pest control but do not encapsulate the essential responsibilities of identifying pests, determining the optimal time for treatment, and choosing suitable control methods, which are all pivotal in successful pest management.