What action can increase the dosage applied by a sprayer?

The action that can increase the dosage applied by a sprayer involves decreasing the speed of travel. When a sprayer moves more slowly over an area, it allows for more time for the pesticide to be applied to the surface being treated. This increased application time translates to a greater volume of liquid being dispensed per unit area, effectively increasing the dosage of the pesticide being applied.

This principle is pivotal in pesticide application, as the rate of application is often a function of both the speed of the equipment and the output rate of the sprayer. Therefore, reducing the travel speed enables the sprayer to deliver more pesticide solution over the same area, which can be crucial for achieving the desired efficacy of the treatment.