The Hi-Light Blue Spray Indicator is a temporary colorant that is used to identify spray patterns on treated areas so you don't spray the same area multiple times. This marking spray can be used as a marker broadcast, backpack, or general spot treatment and is compatible with water soluble herbicides.
This product can be applied to weed districts, pipelines, highway right of way, plant sites, airports, for bare ground stabilization and for existing vegetation. Mix 0.5 fl oz per gallon of spray.