In areas of beacon DGPS coverage the yearly cost of GPS guidance can be significantly less than foam markers. In areas of satellite coverage, subscription costs are competitive with foam marker accessory expenses. The lightbar placed in the operators peripheral vision eliminates the need to look backwards or sideways to line up the end of the spray boom with the previous swath's foam droppings. GPS guidance reduces set up time With GPS guidance, time that was once spent filling foam tanks and changing foam dyes becomes the operator's. Time is further saved through increased swathing accuracy.
Accurate guidance decreases the time spent spraying part of a field twice.
The efficacy of many pesticides is greatly improved when applied in the evenings, at night, in the early morning or in foggy conditions. This is particularly true for systemic pesticides which benefit from high moisture levels to enable rapid uptake into the plant. In addition many plant species tilt their leaves upwards at night, exposing the undersides of the leaves where species of insect pest prefer to habitate. GPS guidance uses less chemical A reduction in swath overlap significantly reduces the amount of chemical applied. This improves both the environment and the bottom line.