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ReTain 123

CaroVail · EPA Reg 73049-45 · Plant Growth Regulator Document last checked 2026-05-30

About this product

Active ingredient Pending extraction
Manufacturer CaroVail
Category Plant Growth Regulator

Full details for ReTain 123

Source safety data sheet ↗ Open the catalog source SDS while the local copy is reviewed. Verify the exact product and revision before relying on it. EPA registration data Reg. 73049-45 — registry reference, signal word and status.

Applicator discussion

Nothing here is label direction — the label is the law. These are notes from other applicators, moderated before they appear. Check the labeling accompanying the product and applicable state requirements.

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According to the label From the product label

These details were extracted from this product's label PDF. The label is the law. Confirm every rate, site, restriction and safety requirement against the label before mixing or applying. Check for a state supplemental label; a product may be restricted or prohibited in a state or site even when a rate appears below. · EPA registration data for Reg. 73049-45 →

ReTain is a plant growth regulator (PGR) containing 15% w/w (wt/w) (S)-trans-2-amino-(4-ethoxyoxy)-3-butenoic acid hydrochloride. It is designed to manage fruit and vegetable growth, specifically targeting harvest timing and fruit quality. It is used on a variety of crops including apples, pears, peaches, nectarines, plums, apricots, stone fruits, pecans, walnuts, cucumbers, and certain cucurbits. For many crops, it helps delay fruit maturity, increase time for color development, maintain fruit firmness, and improve fruit quality. It can also be used on cucumbers to increase the likelihood of yellowing in cucurbit seedlings for seed production. Application methods include spray applications using calibrated equipment like air blast sprayers. Users should note that ReTain is a soluble powder that must be mixed in a water-soluble bag. Handling requires personal protective equipment (PPE) including long sleeved shirts, long pants, shoe covers, and waterproof gloves. Always perform a compatibility test before mixing with other products and follow specific dilution rates for each crop to avoid injury or ineffective results.

Areas treatable (1)
Apple, Cucumber, Pear, Pecan, Stone Fruit, Walnut

Application instructions from the label 1

Apple, Cucumber, Pear, Pecan, Stone Fruit, Walnut

Used to manage harvest timing, fruit firmness, and quality.

Location
Outdoor

Mixing instructions 1

Label notes
Mix in a water-soluble bag. Use calibrated equipment like air blast sprayers.

Worker safety

Re-entry interval (REI) 12
PPE required Long sleeved shirt and long pants; Shoe covers; Waterproof gloves.

Timing & weather

Use restrictions 4