Abstract: A swathing guidance display for accurately guiding and navigating an agricultural product application vehicle is described. The invention aids in precision guidance of the application of agricultural products such as fertilizers and herbicides to reduce application overlap. The invention further provides assistance in planting operations without requiring the use of traditional markers, provides parallel swath guidance of an agricultural product application vehicle, and provides an apparatus which providing a vector for navigating an agricultural product application vehicle to a desired application location. The swathing guidance device includes a circular display having a plurality of illuminating radial vectors to indicate the direction of the desired course and course correction. Both guidance and navigational functions are provided.