Ethephon 39% SL is a high-performance plant growth regulator (PGR), not a traditional insecticide or fertilizer, used extensively in agriculture to stimulate ethylene production within plant tissues. It is a soluble liquid (SL) formulation that penetrates plant tissues to accelerate ripening, induce flowering, and manage crop maturity.
Uniform Fruit Ripening: Accelerates and synchronizes the ripening process in crops like tomatoes, apples, and bananas, leading to better market appearance and reduced harvest time.
Flower Induction: Promotes flowering, particularly in pineapples, and helps manage alternate bearing (fruit drop/low yield in certain years) in mango trees.
Increased Latex Yield: Significantly boosts latex flow in rubber trees when applied to tapping cuts.
Defoliation: Helps in shedding leaves, particularly for pomegranate, which aids in better fruit growth and synchronization.
Improved Marketability: Enhances fruit color, size, and overall quality, increasing the commercial value of the produce.
Lodging Control: Strengthens stalks in cereal crops (wheat, barley, rice) by reducing internode elongation, preventing plants from falling over.
Major Crops and Applications
Ethephon 39% SL is widely used in both pre- and post-harvest stages for:
Mango: Breaking alternate bearing and inducing flowering.
Pineapple: Inducing flowering at the 3037 leaf stage.
Tomato & Banana: Uniform, on-vine, or post-harvest ripening.
Rubber: Increasing latex production.
Coffee: Uniform ripening of berries.
Cotton: Defoliation and promoting boll opening for efficient harvesting.
Recommended Usage
Dosage: Generally, 1.5 to 2 ml per liter of water is recommended for foliage spraying.
Application Method: Foliar spray (direct spray on leaves/fruit) or post-harvest dip for fruits.
Compatibility: It is often compatible with most fertilizers and pesticides, but a jar test is recommended before mixing.
Safety and Precautions
Handling: Wear protective gear (gloves, masks) as it can cause irritation.
Timing: Apply at correct growth stages to avoid crop stress.
Storage: Keep in a cool, dry place away from direct sunlight.
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