PCP #28042 · Basf Canada Inc. · Growth Regulator
Plant growth regulator containing prohexadione calcium for vegetative growth control in apples, cherries, and strawberries. Also provides fire blight suppression in apples by inhibiting gibberellin biosynthesis, reducing shoot growth for 2-5 weeks per application. Contains the allergen sulfites.
Crop × pest × application rate combinations from the official label. Rates converted to per-acre. PHI is the pre-harvest interval; REI is the restricted-entry interval. Always confirm against the official label PDF before applying.
| Crop | Target | Rate | PHI | REI |
|---|---|---|---|---|
| Apple | Fire blight suppression (Erwinia amylovora) | 546 g/acre | 45 d | 12 d |
| Apple | Vegetative growth control (Low Vigour Trees) | 328–546 g/acre | 45 d | 12 d |
| Apple | Vegetative growth control (Low to Medium Vigour Trees) | 328 g/acre | 45 d | 12 d |
| Apple | Vegetative growth control (Medium to High Vigour Trees) | 546 g/acre | 45 d | 12 d |
| Cherry | Vegetative growth control | 546 g/acre | 20 d | 12 d |
| Strawberry | Vegetative growth control | 54.6 g/acre | 21 d | 12 d |
Adjuvant requirements, compatibility notes, and mixing restrictions from the official label. Always confirm against the official label PDF before mixing.
| Guidance | Adjuvant | Rate |
|---|---|---|
| Recommended | Activate Plus NIS The use of a non-ionic surfactant and ammonium sulphate conditioner is recommended (see Additives section). | – |
| Recommended | Activate Plus NIS |
| – |
| Recommended | AMS The use of a non-ionic surfactant and ammonium sulphate conditioner is recommended (see Additives section). | – |
| Recommended | AMS The use of a non-ionic surfactant and ammonium sulphate conditioner is recommended (See Adjuvant Section). | – |
| Compatible | AGRAL 90 APOGEE plant growth regulator can be applied with Agral® 90 at a rate of 0.5 mL/L or 0.05% v/v in conditions where uptake of prohexadione-calcium would be reduced such as drought conditions, low humidity, hot temperatures or if particularly lush growth is present. | 0.5 mL/L or 0.05% v/v |
| Compatible | AGRAL® 90 Agral® 90 | 0.5 mL/L or 0.05% v/v |
| Compatible | AMS | 1:1 ratio to APOGEE |
| Compatible | AMS APOGEE plant growth regulator can be applied with ammonium sulphate (AMS) at a ratio of 1:1 to APOGEE plant growth regulator if the water source used for spray applications contains high levels of calcium (hard water). Use high-quality, spray grade AMS to avoid plugging nozzles. | 1:1 ratio to APOGEE plant growth regulator |
About this content. This page presents the official PRD label as published by Health Canada's Pesticides Regulatory Directorate (formerly the Pest Management Regulatory Agency), the source of record. Always read the official label and consult your provincial pesticide- application authority before use. Report an error.
