Liquid Harvest Lazer Blue Concentrated Spray Pattern Indicator - 1 Gallon (128 Ounces) - Perfect Weed Spray Dye, Herbicide Dye, Fertilizer Marking Dye, Turf Mark and Blue Herbicide Marker

Works great when I spot spray marking the areas so I don’t accidentally spray them again. A little goes along way. This stuff can get messy so definitely wear nitrile or vinyl gloves when handling. I had a couple drops hit my red thin hoody but it washed out easily. Stayed on my lawn for 3 to 4 days after applying but then completely went away. Will not stain your spray tank. Easily washes out.

shipped on time and product is as advertised.

I've used the green spray indicator for years with good results, but decided to try the blue one last year. I found it easier to see on green plants so I more easily know where I've already sprayed. The Liquid Harvest Lazer Blue spray indicator is great. It doesn't take a lot to give your a good color indication and I think it is easier to see on green plants by giving them a slight blue tinge. This is my 2nd gallon I've bought and will buy it again when this one is out.

Good product

Liquid Harvest Lazer Blue works great however you must read the instuctions carefully to make sure you mix the solution properly. It is easy to get the liquid on your hands. Dish soap and baking soda will get most of it off, but nail polish remover with acetone will do the trick if that doesn't work. Just make sure you handle the products safely since acetone is highly flammable.

It’s great for spot spraying!

So far so good it’s a nice blue color so my HOA knows that I’ve sprayed my lawn. The weeds seem to be dying pretty quickly so I’m happy and I think the price is right a little goes a long way.

Liquid Harvest Lazer Blue Concentrated Spray - I have about a half an acre of desert property that needs to be sprayed. last year I bough and went through quite a lot of the Spray Pattern Indicator I could get at lowes/home depot. those worked ok but I had to keep going back for more because the bottles wee small and in the end I spent a lot of money on them. this product was so much better. it seems more concentrate than the stuff I bought last year. I think I used too much (probably used more then recommended based n the previous years use of a different product) since when I was done I joked with my wife that the yard looks Smurfy. It faded a lot in the 1st 48 hours but took a couple weeks to fade completely (helped by some rain too). next time I will use a lot less. the advantage of the smaller bottles from home depot was pouring it was easier. My hands were stained for a few days where it got on me. I would not use this wearing anything i care about but the clothes I wore did seem to come clear in the wash.