Fruit Growers News March 2026

Enhance Apple Fruit Set with ReTain® PGR

< 1 minute read

{Sponsored} ReTain® Plant Growth Regulator Enhances Apple Fruit Set

ReTain® PGR extends flower viability in apples. This increases the opportunity for fruit to set. For best results, use ReTain at early bloom in advance of poor pollinating conditions (cool, wet weather, desiccating winds, and/or low bee activity) or on varieties with low natural fruit set.

ReTain Benefits:

  • Extends flower viability by reducing ethylene production, thus early senescence
  • Increases potential for fruit set under low bee activity
  • Effective on low set varieties such as Cosmic Crisp, EverCrisp, and SweeTango

ReTain Reduces Early-Season Fruit Drop

ReTain also reduces early-season fruit drop by reducing fruitlet abscission when applied post-bloom. Be sure to check out local Section 2(ee) supplemental labels in select apple-growing states by visiting the ReTain webpage.

How to Use ReTain PGR

  • Rate: 1 pouch/A
  • Application Timing
  • Apply as a single application from pink stage to full bloom
  • Apply when average diameter of king bloom fruitlets reaches 10 mm (check local Section 2(ee) supplemental labels in select apple-growing states)
  • Method: Calibrated spray equipment (i.e., air blast sprayer) and adjust water volumes based on tree size and spacing
  • Spray Volume: 100 gallons/A
  • PHI: 7 days 
  • REI: 12 hours

To learn more, contact your local retailer or visit www.valent.com/retain

Always read and follow label instructions.

© 2026 Valent

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