Adjuvants & Colorants

Harrell's SprayMAXThe Harrell's SprayMAX® product line of spray adjuvants and colorants is designed to enhance the quality of your turf and plants by increasing the efficacy of the products you use every day. From Harrell's Crop Oil Concentrate to Harrell's Nonionic Spreader Sticker, you can count on a product that will strengthen the hard work you already put into your turf and plants.



Benefits of Adjuvants

Adjuvants are designed to increase the efficacy of your spray control products.  Adjuvants increase efficacy by improving leaf surface contact, penetration of tough cuticle surfaces, and modification of tank mix pH solution.  Proper selection of an adjuvant product is important to ensure that control products are working at their greatest potential.  Always follow label instructions to maximize efficacy and reduce potential for unintended injury.

Benefits of Colorants

Harrell’s SprayMAX colorants are designed to facilitate the application of all sprayable products and increase the aesthetic quality of turfgrass.  The use of colorants increases the accuracy of application and minimizes undesirable misses and over-sprays by providing clearly visible spray pattern boundaries.  SprayMAX colorants also make it easy to identify mid-boom misses that are caused by clogged nozzles.  In addition, the use of specific colorants called pigments also increases turfgrass quality through foliar uptake of the pigmented compound resulting in an enhanced natural appearance.  Colorants in the paint category serve to provide color during periods of full dormancy when nondormant turf aesthetics are desired.

Confused about the various ways to green up your turf? Product knowledge is power:

Paint - superficial outer coating which can be broken down by sunlight or mown off. Also blocks plant transpiration.
Dye -  water soluble and therefore loses it physical structure during application, so it fades quickly. Normally used as a spray indicator for pesticide and fertilizer applications.
Pigment - low solubility, longer-lasting. Penetrates turfgrass leaves shortly after application, resulting in a more natural look. Even after sunlight exposure and mowing.


Thank you for your interest in PAR SG. Please visit the product page for more information.

Pigment Cleaner Plus

Thank you for your interest in Pigment Cleaner Plus. Please visit the product page for more information.

Dormant Green Plus

New and Improved Formula. More Potent. Bolder Color.  

Harrell’s SprayMAX® Dormant Green® Plus is an organic polymeric colorant designed to provide natural green color on non-dormant, semi-dormant and dormant turfgrass.

Dormant Green® Plus contains Surface Coverage Brightener or ScB™ Technology, a unique, proprietary color additive that improves leaf surface coverage and concentrates color for a brighter, bolder, more natural green.


  • Enhances colorant efficacy
  • Improves leaf surface coverage
  • Promotes consistent, uniform colorant longevity

Related Products

Harrell's Activator 1 Qt. HSMACT SDS Label More…
Harrell’s SprayMAX® Activator is an adjuvant designed to enhance the performance of both contact and systemic products.
Harrell's Black Pond Dye 6 x 5.25 oz Each HSMBLA SDS Label More…
Harrell’s SprayMAX® Black Pond Dye is a proprietary blend of environmentally friendly, nontoxic, water-soluble dyes formulated to reduce sunlight penetration and impart a natural black color when applied to ponds, lakes and fountains. Black Pond Dye is protected by a unique, waterproof, foil-lined over pack to prevent accidental staining while handling. Black Pond Dye and its water-soluble packaging dissolve quickly and are nontoxic to turf grass, birds, mammals, reptiles, fish or other aquatic species. Irrigation, swimming and other recreational uses are approved during and following the use of this product. Applications to chlorinated water may require more frequent treatment. PRINCIPAL FUNCTIONING AGENTS
  • Proprietary Blend of Water-Soluble Dyes and Stabilizers 100.0%

Harrell's Blue Pond Dye HSMBLU SDS Label More…
Harrell's Blue Pond Dye is a blended formulation of water-soluble dyes. Harrell's Blue Pond Dye is designed for use in lakes, ponds, decorative water features and other impounded bodes of water with limited outflow. Harrell's Blue Pond Dye beautifies murky, cloudy or off-colored water with a pleasing, natural aqua-blue color.
Harrell's Blue Spray Indicator 2.5 Gal HSMBSI SDS Label More…
Harrell’s SprayMAX® Blue Spray Indicator is a proprietary colorant blend used as a visual aid to help determine what areas have been covered by the applicator. For use with pesticides, fertilizers and PGR foliar applications on turfgrass and other non-crop vegetation sites with all types of spray equipment. Blue Spray Indicator leaves a temporary visual identification of the areas already treated by the applicator. Avoid the added cost of overlapping spray applications and ensure that no areas are being skipped, saving you the time and expense of incomplete applications and re-treatments.

Harrell's Blue Spray Indicator:

  • is a blue liquid colorant
  • is washable colorant technology
  • is non-hazardous
  • will not permanently stain skin
Harrell's PH Buffer 1 Gal HSMBUF SDS Label More…
Harrell's PH Buffer is a water conditioning agent which promotes herbicide performance by modifying elements such as pH and hardness of the spray water. Hard water and high pH can minimize the effectiveness of certain pesticides. pH Buffer positively affects herbicide spray applications. PRINCIPAL FUNCTIONING AGENTS
  • Alkyl Polyethoxy Ether 20.0%
  • 2-Hydroxy -l, 2,3-Propane-Tricarboxylic Acid. 19.0%
  • Dimethyl Poly Siloxane Antifoam 1.0%
  • Formulating Aids and Inert Ingredients 60.0%
  • TOTAL 100.0%

All ingredients are exempt from the requirements of a tolerance as specified in CFR 40, 180.1001(c)

Harrell's Crop Oil Concentrate 2.5 Gal HSMCOC SDS Label More…
Crop Oil Concentrate is a blend of a surfactant and a nonphytotoxic agricultural spray oil designed for use with pesticides including desiccants, and defoliants, where an oil concentrate adjuvant is recommended on the pesticide label.. Care should be exercised when herbicide sprays containing Crop Oil Concentrate are applied to new varieties or highly inbred lines not previously treated with spray tank adjuvants. If mixture has not been used before, it is recommended that small test areas be treated, before undertaking large-scale application.
Harrell's Defoamer 1 Qt. HSMDEF SDS Label More…
Harrell’s Defoamer is a highly active, nonionic, silicone, defoamer designed to eliminate foam in a variety of applications. The use of Harrell’s Defoamer can control foaming of spray mixtures. The reduction of foam can reduce mixing and filling times and material loss caused by foaming-over of spray tanks. Harrell’s Defoamer formula is designed to prevent foam formation as well as provide curative knock down of foam that has previously formed.
Harrell's Dormant Green® 2.5 Gal HSMDOR SDS Label More…
Harrell’s SprayMAX® Dormant Green is a polymeric colorant designed to provide natural green color on non-dormant, semi-dormant and dormant turfgrass.
Harrell's Dormant Green® 30 Gal HSMDOR1 SDS Label More…
Harrell’s SprayMAX® Dormant Green is a polymeric colorant designed to provide natural green color on non-dormant, semi-dormant and dormant turfgrass.
Harrell's Green Spray Indicator 2.5 Gal HSMGSI SDS Label More…

Harrell's Green Spray Indicator identifies exactly where your spray is being applied to the turf. It eliminates overlap as much as 50%. It eliminates misses, which is particularly important when a weed or pest is allowed to remain. Harrell's Green Spray Indicator is nonstaining so it washes off skin, clothing and equipment. It is temporary, fading in sunlight or washing off with irrigation or rainfall.

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