Proliant® PGR optimizes growth and development along with increasing size and quality of fruits and vegetables and other horticulture crops.


Technical information

Active ingredients: Gibberellic acid (GA3) 40%
Packaging: 4 x 850 g case 
Rainfast: Delay application if rainfall is imminent
Notes: Non-ionic surfactant recommended

Registered crops

  • Highbush blueberry
  • Lowbush blueberry
  • Potato seed


  • Supplements the plant’s natural GA3 production during slow growth stages
  • Temporarily increases plant growth rate
  • Increases early season photoradiation capture of the treated crop – more photosynthetic capacity

General usage information

  • Do not apply to plants under pest, nutritional or water stress
  • For optimum effectiveness, thorough spray coverage must be achieved. All parts of the plant or crop must receive the spray or the desired results will not occur.
  • For best results, the water pH should be around neutral, and always below 8.5
  • In many cases, performance is increased if application is made under slow drying conditions (cool to warm temperatures, medium to high relative humidity, and no wind) will increase absorption by the plant and optimizing effectiveness. Nighttime applications are encouraged when daytime conditions are not conducive to slow drying conditions.
  • Airblast application – do not direct spray above trees to be treated. Turn off outward pointing nozzles at row ends and outer rows. Do not apply when wind speed is greater than 16 km/h at the application site as measured outside of the treatment area on the upwind side.
  • Can be applied with most herbicides, fungicides and foliar nutrients (Check with your Nufarm representative for compatibility questions)

For specific crop usage information see label for details