Ethrel Plant Growth Regulator – Bayer
About the Product
Ethrel is a unique and versatile plant growth regulator from Bayer that contains Ethephon 39% SL. Known for its multiple functions across a variety of crops, Ethrel promotes uniform ripening, flower induction, defoliation, and fruit quality enhancement. It supports better yield and harvest efficiency in crops like mango, coffee, tomato, pineapple, and pomegranate.
Composition & Technical Details
- Technical Name: Ethephon 39% SL (39% w/w)
- Mode of Entry: Systemic
- Mode of Action: After absorption, Ethephon decomposes into ethylene inside the plant, which regulates growth, ripening, and flowering by mimicking the natural hormone ethylene.
Key Features & Benefits
- Promotes uniform fruit ripening in crops like tomato, coffee, mango, and pineapple
- Induces profuse flowering and breaks alternate bearing in mango
- Helps with defoliation in pomegranate to improve fruiting and flowering cycles
- Improves fruit coloration and post-harvest ripening
- Supports latex yield in rubber trees through bark brushing applications
Usage Recommendations
| Crop |
Purpose |
Formulation (ml/acre) |
Water Volume (L/acre) |
| Mango |
Break alternate bearing |
308 – 410 |
600 – 800 |
| Mango |
Flower induction (juvenile trees) |
1538.4 – 2051.2 |
600 – 800 |
| Mango |
Post-harvest ripening |
769.2 – 1025.6 |
600 – 800 |
| Pineapple |
Flower induction |
154 – 205.2 |
600 – 800 |
| Coffee (Arabica) |
Uniform berry ripening |
295.2 – 394 |
600 – 800 |
| Coffee (Robusta) |
Uniform berry ripening |
86 – 114.8 |
600 – 800 |
| Tomato |
Post-harvest ripening |
65 ml per 10 L water |
Dip once |
| Rubber |
Latex stimulation |
26 ml per 10 L water |
Apply by brushing bark |
| Pomegranate |
Defoliation |
400 – 500 |
200 |
Method & Timing of Application
- Mango (alternate bearing): 5 sprays at 15-day intervals starting mid-October to early November.
- Mango (flower induction): 5 sprays at weekly intervals from early November.
- Pineapple: One spray at 30–37 leaf stage or 10–12 months old plants.
- Coffee: One spray during fly picking stage when 10–15% berries are ripe.
- Tomato: Dip mature fruits post-harvest for uniform ripening.
- Rubber: Brushing on tapping cut of bark during March, August, September, and November.
- Pomegranate: One spray 1 month before flowering season (Bahar): Mrig (June–July), Hast (Oct–Nov), Ambe (Dec–Jan).
Additional Information
- Compatible with most agrochemicals
- Recommended for use under professional supervision
- Ideal tool for regulated crop management and increased yield
Terms and Conditions
30-day money-back guarantee
Shipping: 2-3 Business Days
