Richard from Oro Valley, Az writes
Indicator Blue SG Select is measured at 1 - 2 ounces per 50 gallons of spray solution to cover 1 acre. If you are going to add this dye to herbicides or to insecticides on turf, then you may want to test a small amount with only water in your sprayer first to determine how much concentrate best suits your needs.
Answer last updated on: 12/28/2015