| Fruit Set & Fruit Drop |
ReTain® Plant Growth Regulator Enhances Apple Fruit Set and Reduces Early-Season Fruit Drop ReTain® Plant Growth Regulator Soluble Powder 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 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. 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 When applied post-bloom, ReTain reduces fruitlet abscission ReTain Boosts Cosmic Crisp Fruit Set and Lessens Early-Season Fruit Drop
1.25
1.03
1.00
0.75
0.64
0.60
0.59
0.50
0.40
0.25
0.00
Untreated
ReTain ½ Pouch at Full Bloom + ½ Pouch at 10 mm (no Syl-Coat®)
ReTain 1 Pouch at Full Bloom
ReTain 1 Pouch + Syl-Coat at 10 mm
ReTain 1 Pouch at 10 mm (no Syl-Coat)
This study demonstrates how to enhance fruit set with ReTain when used at bloom and how ReTain can help reduce early-season fruitlet drop when used at 10 mm to ensure your crop load management goals. Organosilicone surfactant did not increase ReTain efficacy for early-season fruitlet drop control.
Crop: Cosmic Crips Apples; Location: Washington Source: Cascade Consulting and Research, LLC
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