Pack size

5 & 10 L

Application rate

0.2 - 2.4 L/ha

Water volume

300 - 1,000 L/ha

Maximum total dose rate

16 L/ha per year


121g/L trinexapac-ethyl



 Primo Maxx
  • Key points
  • Directions for use
  • Areas of use
  • Downloads
Key points
  • Increases sward density and root mass
  • Reduces mowing frequency by up to 50%
  • Enhances turf colour, appearance, strength and resilience
  • Improves stress tolerance
Directions for use
  1. Too optimise best results, applications can start when consistent grass growth commences or when soil and air temperatures average 8 - 10 degrees or above for more than 5 days consecutively. For weather and temperature guidance go to
  2. Various application rates are recommended depending on intended area of use.
  3. For best results apply with Liquid N (minimum 2.5kg N/ha)
  4. Avoid appilcations during frosty or drought conditions
  5. Can be tank mixed with H2Pro Conserve and H2Pro Maximise wetting agents, Greenmaster Liquids and sportsmaster WSF water soluble fertilizers. Advice should always be sought from your ICL Technical Area Sales Manager before any tank mix is applied.
  6. Mix with Turf Mark Extra spray pattern indicator to aid spraying, to conidtion water and minimise spray drift.
  7. For use only as a horticultural plant growth regulator.
Areas of use
  • Fine turf
  • Sports pitches
  • Outfields
  • With line marking paints

Primo Maxx is a proven formulation grass growth regulator for the improvement of playing surfaces and reduction of management intensity.

Suggested period of use

  • Jan
  • Feb
  • Mar
  • Apr
  • May
  • Jun
  • Jul
  • Aug
  • Sep
  • Oct
  • Nov
  • Dec