Bayer Ethrel is a highly effective plant growth regulator containing Ethephon 39% SL. Widely used in crops like mango, pineapple, tomato, coffee, pomegranate, and rubber, it enhances fruit coloration, promotes uniform ripening, induces flowering, and supports crop management practices such as defoliation and breaking alternate bearing.
| Technical Name | Ethephon 39% SL |
|---|---|
| Formulation | Soluble Liquid (SL) |
| Category | Plant Growth Regulator (PGR) |
| Mode of Action | Ethrel penetrates into plant tissues and decomposes to release ethylene gas, which regulates physiological processes including ripening, flowering, and defoliation. |
| Dosage | 15 ml per 15 L pump or 150 ml per acre (as per crop requirement) |
| Crop | Application Purpose | Method |
|---|---|---|
| Mango | Breaking alternate bearing & flower induction | 5 sprays at 1–2 week intervals starting mid-October to November |
| Mango (Post-harvest) | Uniform fruit ripening | Dip mature fruits once in prepared solution |
| Pineapple | Flower induction | Spray at 30–37 leaf stage (10–12 months crop age), one spray |
| Coffee (Arabica & Robusta) | Uniform ripening of berries | Spray once at fly-picking stage when 10–15% berries are ripened |
| Tomato | Uniform ripening | Dip fruits post-harvest once in solution |
| Pomegranate | Defoliation | Spray for leaf fall management before next crop cycle |
| Rubber | Latex flow enhancement | Brush solution on tapping cut of bark (March, Aug, Sept, Nov) |
The above details are for reference purposes only. Always follow the official label and product leaflet for correct dosage, timing, and safety instructions.
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