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Monterey Mark-It Blue 32oz

(8 customer reviews)

Spray Solution Blue Colorant That Indicates Where You Have Applied A Chemical Spray
Works Great With Roundup Or Remuda And Other Herbicides As Well As Fertilizers And Insecticides
Avoid Skips And Overlapping
No Assembly Required


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SKU: B015EA1U1I Category:

Spray solution blue colorant that indicates where you have applied a chemical spray. Works great with Roundup or Remuda and other herbicides as well as fertilizers and insecticides. Avoid Skips and overlapping. Washes off without staining, is non0toxic and dissipates with sunlight.

Specification: Monterey Mark-It Blue 32oz

Weight 1 lbs
Dimensions 1 × 1 × 1 in

8 reviews for Monterey Mark-It Blue 32oz

4.4 out of 5
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  1. Ryan

    This product is FANTASTIC! I was skeptical about this product, but I decided to buy it anyway. I have a really large yard/lawn so when spraying something, I usually cannot figure out where I have done so and where I have not and let me tell you it’s as good as all the other reviews say it is! It was easy to mix, I used my Chapin 5 Gallon Lawn Spray and put about 1 once each gallon so I had 5 ounces of it. It was very easy to tell where I have or have not sprayed in the grass. It worked like a charm! The only thing is, one bottle of this will not last long and it is kind of expensive but it works just fine. If you found this helpful, consider leaving me feedback. And if you have any questions, feel free to ask, I’m happy to help.Read more

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  2. DAJ

    I used only half the recommended amount of this product when I sprayed the yard for weeds (desert Southwest where no grass grows but weeds are rampant) and still had excellent results. I oversprayed my concrete driveway and sidewalks and it bleached out completely in a couple of days. I’ll keep buying it.Read more

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  3. J. Wilkerson

    Mixed concentrated bush eradicator, water and this blueing in a 2 gallon sprayer. Wonderful! I can see exactly where I sprayed, I had a long fenceline and some other random spaced spors to spray. I could see where I sprayed and the eradicator worked just like it was supposed to. The blue eventually disappeared, so no worries if blueing gets on concrete.Read more

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  4. Jim B.

    This stuff is excellent at letting you know where you’ve already sprayed! Be careful, though, with using it in a backpack pump sprayer that leaks . . . I’ve gotten a couple of white T-shirts spotted-blue because of liquid leaking from the tank :-p Luckily, soaking the shirt in the sink w/ soap gets it all out . . . so, no long-term damage done. But, that isn’t the product’s fault . . . this stuff definitely tells you where you’ve been, and that you are actually atomizing your liquid (important when using a Dial-and-Spray hose-end sprayer).Read more

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  5. Tulsakev

    Maybe I have blue grass of something but I couldn’t tell were I had sprayed at all so I feel like this is pretty much a waste of money. I found it much simpler to just make visual landmarks and run with that. I wouldn’t say it’s the same results for every situation but for me, I could have better done without.Read more

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  6. Mike Navarette

    Since the beginning of this year, I took back the job of treating for pest, weeds and fertilizing my lawn. Until I came across How to With Doc I did not know of your products… They are are all as advertised, simply fantastic.. but you need to do a better job of keeping them in stock.Read more

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  7. Rodney D. Reynolds

    Pro: + Does exactly what it says it will do. + Use at 1oz per gallon to get a solid blue very noticeable marking Con: – none Add the colorant LAST when mixing – do not add first to tank otherwise you will have a colorful problem with any overflow. Rinse the tank with a hose under the seal before you start to use Blue is very noticeable in full daylight and sticks out vividly.Read more

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  8. Gary Mansperger

    It did make it easier to see what you are spraying, but maybe not so much to justify the cost. Everything on the ground was blue, which is what it is supposed to do, this also includes shoes.Read more

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    Monterey Mark-It Blue 32oz
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