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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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).
| 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. |
| 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. |