Ray from Vero Beach, Fl writes
Triad Select Herbicide does not gives rates per gallon but instead rate per area in however much water it takes for you to cover that area. Per the product label you would use 0.75 to 0.9 fl oz per 1000 sqft in 1 to 5 gallons of water applied to dormant St Augustine only. You can only apply twice a year as well up to the max rate.
Answer last updated on: 04/01/2018