Which of the following is NOT a factor that affects the total amount of pesticide applied to a site?

The factor that is not relevant to the total amount of pesticide applied to a site is the type of pesticide used. While different pesticides can have varying modes of action, effectiveness, and environmental impacts, the specific chemical composition or class of the pesticide does not directly influence the quantifiable amount applied during an application.

In contrast, the other factors listed all play crucial roles in determining the application rate. The spray width of the sprayer influences how much area can be covered, which directly impacts the overall quantity used based on the size of the target area. The concentration of the pesticide in the spray tank affects the strength of the solution being applied and can dictate how much product is necessary to achieve the desired effect. Lastly, the speed of travel by the applicator or equipment governs how much pesticide is delivered over a certain distance, influencing both the total application rate and the efficiency of coverage. Each of these components is crucial to consider for effective and safe pesticide application.