In what situation would calibration not be necessary?

Calibration of equipment is essential in ensuring that the right amount of a pesticide is applied to achieve the desired effect while minimizing environmental impact and safety risks. In scenarios where accuracy is not critical, such as situations involving large areas or less sensitive applications, calibration might not be strictly necessary. This could apply to situations where the pesticides are applied in broad swaths rather than targeted approaches, making slight variations in application rates less impactful.

In contrast, using a new pesticide typically requires calibration to understand its efficacy and to ensure accurate dosing based on the manufacturer's recommendations or guidelines. Home garden applications often still benefit from calibration to provide proper dosing and protect local flora and fauna. Furthermore, calibration is a universal best practice for all pesticide use to maintain safety standards and compliance. Thus, the most reasonable situation where calibration may be forgone is when accuracy is not a primary concern.