What constitutes a "spot treatment"?

A "spot treatment" refers specifically to the application of pesticides in limited and targeted areas, typically to address localized pest issues rather than treating an entire field or space. This type of application allows for precision in managing pests while minimizing chemical use over broader areas. The focus is on small, defined spaces, making option B correct as it recognizes this focused approach, which usually involves treating areas that do not exceed two square feet.

The other options describe practices that do not align with the definition of spot treatment. For instance, applying pesticides over large agricultural fields indicates a broad-area treatment, while random applications across multiple sites lack the targeted nature essential to spot treatments. Similarly, treatments designed for organic farming practices may not encompass the concept of spot treatments, as they can vary based on both the methods and the type of products used. Therefore, the clarity in defining spot treatment as one focused on limited areas is what confirms option B as the correct response.