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Primo Maxx

Last updated:

Growth Regulator

Authorisation Number: 
Pack size: 
1 Litre / 5 Litre
Microemulsion concentrate
Mode of action: 

The active ingredient in PRIMO MAXX, trinexapac-ethyl, causes a temporary halt to the production of gibberellic acid, a plant growth hormone which is responsible for the top growth of the plant. Trinexapac-ethyl is taken up by the foliage of the grass plant and is translocated systemically to the growing point of the plant. After application the turf grass grows more slowly than in untreated areas, with shorter leaf blades

Bowling greens

Golf greens

Sports field / Out field (cut at >18 mm)

Tees and fairway type turf (cut at < 18 mm)

Legal warning

Re-entry Period

  • Not applicable as Primo Maxx is used only for turf grass. Don't enter treated areas without footwear until sprays have dried.

Hazard Statements

  • H319 Causes serious eye irritation. H360Df May damage the unborn child. Suspected of damaging fertility. :H412 Harmful to aquatic life with long lasting effects.

Precautionary Statements

  • P102 Keep out of reach of children P201 Obtain special instructions before use. P273 Avoid release to the environment. P280 Wear protective gloves/protective clothing/eye protection/face protection. P308/P313 IF exposed or concerned: Get medical advice/attention. P501 Dispose of contents/container to a licensed hazardous-waste disposal contractor or collection site except for empty clean containers which can be disposed of as non-hazardous waste.
Personal Protective Equipment
  • Wear proper personal protective equipment, refer to label for further instruction.

Other Restriction of Use


Tank mixing

Refer to Label for further instruction

Tank mix preparation

Make sure the sprayer is clean and set to give an even application at the correct volume and an even deposit.

Implementation particular terms

PRIMO MAXX may be applied with knapsack sprayers, hand sprayers, boom sprayers and spray-gun application devices.
Always use constant agitation of the sprayer tank during mixing, transportation and application.

Mixing and spraying

Add half of the required water to the sprayer.
Add the required amount of Primo Maxx and then the remaining water and begin agitation.
Thoroughly wash all spraying equipment immediately after use.
The diluted product must be used on the day of mixing.
Maintain vigorous agitation in the spray tank before and during the application.
This will ensure a well-mixed spray suspension.
Do not allow spray suspension to dry in the tank.
Thoroughly clean the sprayer after use by flushing the system with water containing a detergent.
Refer to the Pesticide Disposal section of this label for waste disposal.

Water volume



Adapt the pressure for each spray-type.


1 hour

Frost sensitivity


Tank mix lifespan

Immediate use.

Tank mix stability


Rate of Usage

Bentgrass - 0.8 l/ha
Tall Fescue - 2.4 l/ha
Kentucky Blue Grass - 1.9 l/ha
Perennial Ryegrass - 3.2 l/ha
Mixture (Kentucky Blue Grass; Tall Fescue;
Perennial Ryegrass; Annual Blue Grass) -
1.6-2.4 l/ha (22-33 fl. oz/acre)

  • In case of toxic or transport emergency ring +44 (0) 1484 538444 anytime (24hr)

  • Primo MAXX for turf growth management reduces the frequency of mowing and the amount of grass clipping by reducing the vertical growth of warm and cool season turf grass.

    Other benefits such as increased turf density, increased color and increased turf quality are frequency observed after Primo MAXX application. It also improves the visibilty and quality of line markings. Find out more in this article - Primo Maxx for Turf Line Marking.

    Primo Maxx is foliar absorbed, with no effect on seed germination or seedling growth.

    Apply Primo Maxx one to five days before seeding, prior to verticutting, spiking, or other operations as part of the over seeding renovations.

    Syngenta Primo Maxx Turf Wetting Agent - United Arab Emirates



    • Leading Turf Growth Regulator
    • Higher quality playing surface
    • Better wear resistance
    • Reduced frequency of mowing
    • Faster cutting
    • More successful over seeding and renovation
    • Less clippings to box off
    • Lower maintenance costs
    • Healthier turf = improved stress tolerance
    • Cut costs and carbon footprint of turf management
    • Better shade tolerance


    The unique Syngenta Maxx formulation has beenspecifically designed for turf applications. The advantages of the Maxx formulation include:

    • Outstanding turf safety
    • Increased and enhanced product uptake
    • Very stable in the sprayer tank
    • An easy to use liquid formulation
    • Compatible and easily mixable with other products