(31)
3.5 out of 5 stars
one way
By Chuck in Mason Valley, NV on 02/23/2015
been using mark-it blue for about 5-6 years I have 5 acres with a lot of tumble weeds I ad added mark-it blue. Due to the cost of weed killer I started using mark-it blue it saves a lot of $$$ becaus…
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Mark-It Blue
By Kurt on 05/27/2013
Easy to use. Just visible enough to keep from overlapping or missing spots but not too bright. Seems to fade quickly from concrete. I used 1oz per gallon with great results.
Helpful
By Patti in Charlotte, NC on 09/10/2016
Helpful with herbicide application but hard to see on dark green foliage unless recommended amt is doubled. Even at 2x strength I will get alot of applications from one bottle. Accidentally knelt in f…
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Only marks dead grass areas
By Don in Redmond on 12/03/2015
This product did not show up on my regular grass, it only showed on dead grass. Ok to use it if you are spraying dead areas but useless on live, green lawns and vegetation.
Mark it blue
By Lonnie in Burlington, Ky 41005 on 06/26/2017
Product seems to be satisfactory. Packaging is pretty weak and thin. Dropped a jug and it split open and went everywhere. Quite a mess and expense due to lost product. Not sure if I'd use this again o…
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No visible on green grass
By Graham in Pittsburgh on 06/07/2019
If you put a blue tint on green grass, the tint cannot be seen. Why didn't I think of this before I wasted the money. If your grass is green, find a contrasting color of tint.
Mar-It Blue Results
By Tim in Grand Blanc, Mi on 08/09/2019
This stuff did not work in my opinion. It made the solution a dark blue but virtually no color when applied to the lawn. It did turn blue some vertical solid surfaces I inadvertently sprayed. A waste…
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Do not follow directions
By James in Tunnel Hill, GA on 08/16/2019
If you use only the directions recommended amount you will be disappointed. Takes about 1/3 bottle for the blue to work on 2 gal of water
Highly disappointed
By Don in Millersville, PA on 08/16/2019
Mixed product as directed and it did not mark my grass where sprayed. On my next batch, I doubled the dosage and could barely see where I sprayed. Third batch, I tripled amount and was the same as t…
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Does the job!!!
By Matthew in Seminole, FL on 10/02/2020
I mixed as recommended and it did the job but I wish it was a bit darker and slightly longer lasting as it was already faded the next day and I was going to do another treatment and hit all the spots …
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Does the Job!
By Jim in Lee's Summit,MO on 04/26/2019
Received quickly even though it was back ordered product works great! Marks the weeds that had been sprayed.
Color doesn't show up.
By Mr.jenkins in Savanna,GA on 06/07/2019
No matter how much of this product you add to your mix it still doesn't show up well. Dosent show up on ground either.
Not as effective as I hoped
By Jack in AKRON OH on 08/23/2019
This dye didn't do the job. I don't know why it wasn't dense enough to show up on the grass and mark it clearly. I suspect I should have spent the extra $10 for the higher rated due. Next time.
Didn't work
By Sha in McKinney, TX on 03/15/2024
Didn't work, even tried more than double quantity per gallon. Didn't mark at all.
Expert response:
Greeting, We are sorry you had trouble with this product. MARK-IT BLUE should be added to the spray tank when it is approximately half full. Use 1 fl. oz. of MARK-IT BLUE per gallon of spray. More or less may be used, depending on turf or weed color, height and local water conditions. If you are still experiencing trouble please contact our Customer Service staff and we would be happy to trouble shoot with you.
True Blue
By Doug in Fowler, IL on 08/30/2019
I suggest using bluing so you can see where you've applied and where you've missed.
hard to see on green grass
By Michael in bridgeton, nj on 04/19/2019
this stuff is like the blue stuff you put in the toilet, easy to make a mess with. if your putting it on grass and its not still dormant and brown, its very hard to see at the recommended mix rate. im…
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Mark-It Blue
By Deanna in West Columbia, SC on 04/05/2019
This product made it easy to see where I had sprayed a post-emergent herbicide so I was better able to ensure I didn't miss a lot. The product mixed with the herbicide and a surfactant stayed on the g…
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nice blue color
By Mark in ogden, utah on 09/13/2019
really made spraying my grass much easier. the blue is easy to see and it doesn't permanently mark up concrete. it faded out within a day.
Grass marker
By Steve in Punta Gorda, Florida on 11/29/2019
Works great. Saves money on chemical use. Keeps from overspray issues.
Lawn
By Joshua in New Palestine,Indiana on 05/25/2020
Mixed as recommended and when I sprayed it I still couldn't tell where I had sprayed.
Mark-it blue
By Ruben in Des moines on 05/29/2020
is not as blue wen sprayed on the are is to light blue
Blue color
By Robert in Abbeville, AL on 08/24/2020
Works great. I was able to cover all areas and not miss any spot or double cover any.
Excellent quality.
By Bill in Pensacola Florida on 02/01/2019
Works as advertised. Have used it for years. I never use a herbicide without it.
Spray Dye Review
By Rodney in Karnack, Texas on 10/02/2020
Excellent product, works well, little messy, dye will come off hands with little work, I suggest gloves.
Mark It Blue
By Cheryl in Oroville, CA on 03/27/2021
I love this stuff. I wish I could get it here locally. That would be easier than waiting but it's all good. I love knowing where I have already sprayed.
too little
By Denise in Lake Mary on 06/01/2018
the product is excellent, the bottle on the web looks larger than it is. Be sure and order the larger quantity, it's a much better price per ounce. You will use it up in no time
Using Mark-It-Blue
By Ernie in Queen Creek, AZ on 04/16/2024
This is a great dye to help you know where and what you have sprayed. Yep, it’s blue.
Mark-It Blue
By Marcus in Pahrump NV on 05/11/2024
Product workout great when I mixed it with the other chemicals.
It's Blue
By Bill in Milwaukee, WI on 05/11/2024
This stuff is a Blue Dye that is super concentrated. It dilutes in the spray mixture and allows you to see where you have sprayed. It works really well.