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And with a concentrate that is 3x’s stronger, you prevent over-spraying or overlapping liquid applications. It naturally disappears with rainfall and exposure to sunlight and doesn’t stain your shoes, clothes, mesotrione, or pets.3x super concentrate blue marker: petratools sprayer’s blue is a highly concentrated water soluble spray colorant for fertilizers, herbicides, and weed killer products.
With its extremely visible blue color, you can quickly locate the liquid products applied on your lawn and clogged nozzles or blockages in your sprayer. This is a super concentrate that requires 3X’s less marker per gallon compared to other lawn dyes so that you get 3X’s the value for your money. Your satisfaction guaranteed or your money back. Saves chemical solution and money: by having a blue indicator, plant damage, or possible burns from inaccurate spraying of chemicals.


Rock-solid spraying guaranteed, and all our other fine spraying tools, from petratools: we work hard to make sure PetraTools Sprayer’s Green Grass Paint, meet the highest quality standards. Excellent for covering thin, brown spots caused by drought. Reinvigorates dormant grass: petratools sprayer’s green grass paint is a yard coloring paint that transforms a dull, brown turf into enticing emerald green.
This formula is intended for dormant, dry or dead grass areas and not for dog urine spot treatment check out PetraTools ready-to-use grass spray repair for urine spots. Petratools is family-owned and offers excellent customer care to assist you with product concerns and inquiries. You’ll have vibrant green grass during the cold months! Ideal for residential lawns, commercial landscaping, and athletic fields. It uses custom pigment technology and binder chemistry that generate a natural-looking, bright green color.

But if you don’t, reach out for a full refund. Used by pros – because it’s a simple product that works. Marksman provides a clear and consistent blue spray pattern that remembers for you.
Buy it. Marksman blue fades away after 24-48 hours from sunlight or rainfall. We don’t dilute marksman blue so that you get more for less. A deerlightful guarantee – here at stag, we pride ourselves on being leaders of the pack. We back our products with a moneyback guarantee so good even the weeds in your yard might give us a try. It’s so concentrated it can make more than 30 gallons of spray solution.

It works great with Roundup or Remuda, and herbicides. Avoid overlap - by utilizing the mark-it blue, pesticides, fertilizers, you will be able to avoid overlapping sprays as well as ensure that you have applied the chemical to all desired areas.
Anywhere that spray evidence is needed, cemeteries, Mark-It Blue can be used. No permanent stain - mark-it blue is an indicator that will not permanently stain foliage or skin, but if it is spilled on fabric, it should be washed off before it has a chance to dry. Depending on usage, or soil incorporation.

1. Liquid Harvest
#ad
Liquid Harvest Lazer Blue Concentrated Spray Pattern Indicator 8 Ounces Perfect Weed Spray Dye, Turf Mark and Blue Herbicide Marker, Fertilizer Marking Dye, Herbicide Dye
#adLiquid Harvest #ad - Mixes only with water based solutions, will not work with oil based. Mix with herbicides, fungicides, pesticides, & fertilizers. Non-permanent and nonstaining. Easily marks grass and lawns. Indicates where spray mixtures have been applied.More information #ad
Brand | Liquid Harvest #ad |
Manufacturer | Liquid Harvest #ad |
Weight | 0.4 Pounds |
Part Number | 125 |
Model | 00125 |
More information #ad
2. BASF
#ad
BASF 10059 Blue 32oz Turf Mark
#adBASF #ad - Temporary formulation - will not permanently stain treated surfaces. Great for being able to track where you've sprayed so you don't miss any areas. Non toxic to people, animals and the local environment. Can be used inside and outside the home.More information #ad
Brand | BASF #ad |
Manufacturer | BASF #ad |
Height | 8 Inches |
Length | 2 Inches |
Width | 4 Inches |
Part Number | 10059 |
Model | 10059 |
More information #ad
3. Liquid Harvest
#ad
Herbicide Dye, Turf Marker and Herbicide Marker, Fertilizer Marking Dye, Liquid Harvest Lazer Green Concentrated Spray Pattern Indicator, 1 Quart 32 Ounces, Perfect Weed Spray Dye
#adLiquid Harvest #ad - Non-permanent and nonstaining. Indicates where spray mixtures have been applied. Mix with herbicides, fungicides, pesticides, & fertilizers. Mixes only with water based solutions, will not work with oil based. Easily marks grass and lawns.More information #ad
Brand | Liquid Harvest #ad |
Manufacturer | Sanco Industries #ad |
Height | 10.27 Inches |
Length | 3 Inches |
Weight | 2 Pounds |
Width | 4.4 Inches |
Part Number | 123 |
Model | 123 |
More information #ad
4. Liquid Harvest
#ad
Herbicide Dye, Fertilizer Marking Dye, Liquid Harvest Lazer Blue, Concentrated Spray Pattern Indicator, 32 Ounces, Perfect Weed Spray Dye, Turf Mark and Blue Herbicide Marker
#adLiquid Harvest #ad - Easily marks grass and lawns. Mix with herbicides, pesticides, fungicides, & fertilizers. Mixes only with water based solutions, will not work with oil based. Indicates where spray mixtures have been applied. Non-permanent and nonstaining.More information #ad
Brand | Liquid Harvest #ad |
Manufacturer | Sanco Industries #ad |
Height | 6 Inches |
Length | 9 Inches |
Weight | 2 Pounds |
Width | 6 Inches |
Part Number | 117 |
Model | 117 |
More information #ad
5. Petra
#ad
Fertilizer & Weed Killer, Blue Mark Spray Indicator for Home and Commercial Sprayer Use 8oz, PetraTools Blue Herbicide Lawn Dye, Super Strength Concentrate 3X More Than Others, for Herbicides
#adPetra #ad - Petratools offers guaranteed products: petratools is a family-owned & operated u. S. Compatible with tenacity herbicide, surfactant for herbicide, & all herbicides. You also avoid skipped areas, you get even more value for your money. Business, we design, sell, committed to providing you rock-solid sprayers and solutions for all your growing and lawn needs.And with a concentrate that is 3x’s stronger, you prevent over-spraying or overlapping liquid applications. It naturally disappears with rainfall and exposure to sunlight and doesn’t stain your shoes, clothes, mesotrione, or pets.3x super concentrate blue marker: petratools sprayer’s blue is a highly concentrated water soluble spray colorant for fertilizers, herbicides, and weed killer products.
More information #ad
Saves you time spraying! Quickly fades: no need to worry about seeing your yard blue for a long time! Our blue turf mark will fade in 24-48 hours. As a dependable and trusted sprayer manufacturer, PetraTools is developing the lawn solutions you need for the sprayers that get the job done right. With its extremely visible blue color, you can quickly locate the liquid products applied on your lawn and clogged nozzles or blockages in your sprayer. This is a super concentrate that requires 3X’s less marker per gallon compared to other lawn dyes so that you get 3X’s the value for your money. Your satisfaction guaranteed or your money back. Saves chemical solution and money: by having a blue indicator, plant damage, or possible burns from inaccurate spraying of chemicals.
Brand | Petra #ad |
Manufacturer | Petra #ad |
Part Number | 001 |
More information #ad
6. Bluewater Chemgroup
#ad
8 Ounces, Weed Spray Dye, Organic Herbicide Marking, Fertilizer Marking Dye, Herbicide Dye, Turf Mark and Blue Herbicide Marker, Blue Spray Marker
#adBluewater Chemgroup #ad - Works great with remuda & other herbicides as well as fertilizers & insecticides. Non permanent and Will Not Stain. Has a blue colorant that indicates where you have applied a chemical spray. Easily marks Grass and Lawns.More information #ad
Brand | Bluewater Chemgroup #ad |
Manufacturer | Bluewater Chemgroup #ad |
Part Number | 154 |
More information #ad
7. Petra
#ad
Green Grass Lawn Spray, PetraTools Sprayer’s Green Grass Paint – Lawn Paint, Lawn Colorant, Turf Paint, Long Lasting Green Lawn & Grass Spray 32 Oz, Turf Dye, Lawn Dye, Grass Paint For Lawn
#adPetra #ad - Uniform lawn application: our yard dye is formulated with green propriety wetting agents that help the liquid easily spread across your lawn for a uniform and easier application of green grass spray. Doesn’t fade quickly: with the strong adhesion and colorant formula, our green grass paint will stay for months despite the changing or intense weather conditions.Rock-solid spraying guaranteed, and all our other fine spraying tools, from petratools: we work hard to make sure PetraTools Sprayer’s Green Grass Paint, meet the highest quality standards. Excellent for covering thin, brown spots caused by drought. Reinvigorates dormant grass: petratools sprayer’s green grass paint is a yard coloring paint that transforms a dull, brown turf into enticing emerald green.
More information #ad
It works best with our PetraTools sprayers. Gentle solution: we test our products for quality and safety, pets, and non-corrosive ingredients, and our turf dye is made of non-irritating, safe around people, and the environment, and machinery. This formula is intended for dormant, dry or dead grass areas and not for dog urine spot treatment check out PetraTools ready-to-use grass spray repair for urine spots. Petratools is family-owned and offers excellent customer care to assist you with product concerns and inquiries. You’ll have vibrant green grass during the cold months! Ideal for residential lawns, commercial landscaping, and athletic fields. It uses custom pigment technology and binder chemistry that generate a natural-looking, bright green color.
Brand | Petra #ad |
Manufacturer | Petra #ad |
More information #ad
8. Stag
#ad
Triple Concentrated Spray Pattern Indicator & Turf Grass Mark, 3X Blue Marker Dye Makes 32 Gallons, Pair with Surfactant Liquid for Lawn Spray Mixes 8 oz
#adStag #ad - Probably like it. Anything more than that is overkill. Try it. 3x strength, 3x value – more blue for your buck. Save some by not having to remember where you’ve been and where you still need to go. It’s 100% active so you only need to use up to ¼ oz per gallon of spray mixture.But if you don’t, reach out for a full refund. Used by pros – because it’s a simple product that works. Marksman provides a clear and consistent blue spray pattern that remembers for you.
More information #ad
Save some time – lawn treatments take time. Fades away in 2 days – you need a spray pattern that stays put for a day or two just in case you split the application up. Buy it. Marksman blue fades away after 24-48 hours from sunlight or rainfall. We don’t dilute marksman blue so that you get more for less. A deerlightful guarantee – here at stag, we pride ourselves on being leaders of the pack. We back our products with a moneyback guarantee so good even the weeds in your yard might give us a try. It’s so concentrated it can make more than 30 gallons of spray solution.
Brand | Stag #ad |
Manufacturer | STAG #ad |
Weight | 0.5 Pounds |
Part Number | STAG-MBLUE-HD |
Model | STAG-MBLUE-HD |
More information #ad
9. Monterey
#ad
15.9 Fl Oz Pack of 1, White, Monterey LG1142 Spray Solution Colorant Mark-It Blue Dye
#adMonterey #ad - The more sunlight and heat, apply as a foliar spray, soil drench, the faster the breakdown. Breaks down in heat and light - the blue color of the product breaks down with exposure to heat and sunlight. Ideal for a variety of applications - this product can be used for golf courses, parks, athletic fields, and any other turf or grass areas.It works great with Roundup or Remuda, and herbicides. Avoid overlap - by utilizing the mark-it blue, pesticides, fertilizers, you will be able to avoid overlapping sprays as well as ensure that you have applied the chemical to all desired areas.
More information #ad
Spray identification - after applying insecticide, herbicide, or fungicide to your lawn or garden, use Monterey's Mark-It Blue Spray Solution Colorant to indicate where you have applied a chemical spray. Anywhere that spray evidence is needed, cemeteries, Mark-It Blue can be used. No permanent stain - mark-it blue is an indicator that will not permanently stain foliage or skin, but if it is spilled on fabric, it should be washed off before it has a chance to dry. Depending on usage, or soil incorporation.
Brand | Monterey #ad |
Manufacturer | Lawn & Garden Products #ad |
Height | 4.5 Inches |
Length | 3.1 Inches |
Width | 1.3 Inches |
Part Number | LG1142 |
Model | LG1142 |
More information #ad
10. Liquid Harvest
#ad
1 Gallon 128 Ounces, Perfect Weed Spray Dye, Herbicide Dye, Turf Mark and Blue Herbicide Marker, Fertilizer Marking Dye, Liquid Harvest Lazer Blue Concentrated Spray Pattern Indicator
#adLiquid Harvest #ad - Non-permanent and nonstaining. Mixes only with water based solutions, will not work with oil based. Easily marks grass and lawns. Mix with herbicides, pesticides, fungicides, & fertilizers. Indicates where spray mixtures have been applied.More information #ad
Brand | Liquid Harvest #ad |
Manufacturer | Sanco Industries #ad |
Height | 10.26 Inches |
Length | 2 Inches |
Weight | 8 Pounds |
Width | 4.39 Inches |
Part Number | 118 |
Model | 118 |
More information #ad