Apogee 123

CaroVail · EPA Reg 7969-188 · Plant Growth Regulator Document last checked 2026-05-30

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. 7969-188 →

Apogee is a plant growth regulator used to control vegetative growth in various crops, including apples, grass grown for seed, peanuts, and sweet cherries. Its active ingredient is prohexadione calcium (27.5%). By inhibiting gibberellin biosynthesis, it helps manage canopy density and fruit production. It is primarily used in orchards and fields to manage shoot growth, which can help reduce the incidence of fire blight in susceptible apple varieties. Application rates vary significantly based on the specific crop, tree size, and vigor. For example, in apples, rates are typically measured in ounces per 100 gallons of dilute spray. Users must carefully manage spray drift, especially during temperature inversions or windy conditions. When handling, wear long-sleeved shirts, long pants, chemical-resistant gloves (polyethylene or polyvinyl chloride), and shoe soles. Always follow manufacturer instructions for cleaning and maintaining personal protective equipment (PPE).

Pests covered (1)

vegetative growth

Areas treatable (1)

apple, grass grown for seed, peanut, and sweet cherry

How to treat each type of area 1

apple, grass grown for seed, peanut, and sweet cherry

Target pest	Location	Rate	Unit	Dilution	Label notes
vegetative growth	Outdoor	varies	ozs/A or ozs/100 gal	varies	Used to manage canopy density and shoot growth; can help reduce fire blight susceptibility in apples.

Mixing instructions 1

For pests	Label notes
vegetative growth	Maintain agitation throughout mixing. Use high quality spray grade ammonium sulfate (AMS) if water source contains high calcium or carbonate. Avoid mixing with calcium or boron sprays.

Worker safety

Re-entry interval (REI) 12

PPE required Long-sleeved shirt and long pants; Chemical-resistant gloves made of waterproof material such as polyethylene or polyvinyl chloride; Shoe soles plus socks.

Timing & weather

AVOID APPLICATIONS DURING GUSTY WIND CONDITIONS.
AVOID APPLICATIONS DURING TEMPERATURE INVERSIONS.

Use restrictions 4

DO NOT apply more than 48 ozs/A (3 lbs) of Apogee within any 21-day interval.
DO NOT apply more than 99 ozs/A (6.2 lbs) of Apogee per year.
Fire blight management is not registered for use in California on apple.
DO NOT apply through any type of irrigation system.

Label SDS

Catalog source document available. The local copy is still withheld until its exact product identity, role, and full file hash are accepted. Open the catalog source label ↗ and verify the product name, EPA registration number, and revision before relying on it.

Publication withheld. This catalog record has no active evidence summary, so its document and any extracted directions remain unavailable while identity and document role are reviewed.

Document text and citations

Extracted text is retained internally for document review and page-level citation checks. The complete third-party text is not republished here; use the document viewer above.

Reference only. Always read and follow the most current EPA-approved label on the product container. State and local restrictions may apply that are not reflected in this digitised copy. Verify the EPA registration number and revision date before use.