1 Gallon 4X Spray Pattern Indicator Dye + Surfactant, Makes 128 Gallons of Wetting Agent for Lawn & Turf Mark - Effective Spray Indicator, Liquid Blue Dye for Marking Turf, Easy to Mix & Apply

Works as advertised. I was able to see all areas I sprayed and missed very helpful product.

I only use about a capful per gallon of water as this dye seems super concentrated. Make sure you use some disposable nitrile gloves and a roll of paper towels because this dye is messy!

Wow, a little goes a long way with this product. Sticks great to vegetation and excellent visual appearance.Also, wear some gloves, the blue dye is very strong and will stain your skin, though it will scrub off.Just wish it was offered in smaller quantities (I purchased the 1 gallon bottle).

I'm constantly getting weird looks from my neighbor because of all the spots in my front yard where I have applied pre-emergent mixed with the emulsifier with marking dye. I love that I don't have to respay area or stand there scratching my head like an idiot trying to figure out if I’ve already sprayed that patch of weeds. I feel like the dilution rate seems a bit strong, but I am definitely no expert on how much water needs to mix with dyes. something that I’ve learned from the first few sprays is that want to wash off all the colored spots that you get on yourself as soon as you’re finished. Any spots that I miss on the back of my legs are much harder to get off the next day.

This product is an excellent surfactant and the blue dye assisted me by distinguishing the weeds that I would have normally missed. Great product that I will be using on the farm.

Works as advertised. If u get it on your hand paint thinner and the orange mechnic type greasy hand cleaner with pumice takes it off .

Works as promised, and then some.

I used it a week ago and it rained since but still shows on the vegetation i sprayed. I’m thinking the surfactant that is part of it worked.