Roadsides are often a very difficult place to control weeds. Weeds thrive on roadsides and roadsides and rights of way are obviously long and narrow. Weeds along the edge of the shoulder need to be cleared to reduce fuels to prevent wildfires, and to ensure safety for drivers and also so that weeds do not damage the road surface or shoulder structure.

Herbicide applications on roadsides are often conducted at large scales where several acres to many acres are treated in a day. Roadside equipment can also be highly specialized ensuring large stretches of public roads and adjacent lands are better protected.

Herbicide applications on roadsides should be calibrated to ensure the amount of herbicide applied is the amount...