Which of the following describes spot treatment in pesticide application?

Spot treatment in pesticide application refers to the method of directly applying pesticide to the specific area where pests are located. This approach is targeted and efficient, allowing for the use of chemicals only where they are needed, thereby minimizing environmental impact and reducing costs. It helps in preventing unnecessary exposure of non-target areas and organisms to pesticides, which can be harmful.

In contrast, other options describe broader application techniques. For example, applying pesticide in a narrow strip does not focus on specific pest locations, while spraying the entire field evenly is a blanket approach that treats all areas uniformly, regardless of pest presence. Using pesticide in a curved or circular pattern may not be relevant to the definition of spot treatment either, as it suggests a pattern that does not specifically target individual pest-saturated areas.