DESCRIPTION
Dhanuka Chempa (Pyrazosulfuron Ethyl 70% WDG) Herbicides Details :
- Dhanuka Chempa is a highly effective, broad-spectrum herbicide containing Pyrazosulfuron-Ethyl 70% WDG. Specially developed for paddy cultivation, Chempa controls a wide range of grassy weeds, broadleaf weeds, and sedges that compete with the crop during the early growth stages. With both pre-emergence and early post-emergence activity, it ensures long-lasting protection and a weed-free environment for optimal rice growth.
Key Features & Benefits:
- Broad-Spectrum Action: Controls major sedges, grasses, and broadleaf weeds in rice fields
- Dual Application Window: Effective when applied as a pre-emergent or early post-emergent herbicide
- Long-Lasting Control: Provides extended residual activity by inhibiting weed shoot growth
- Crop Safety: Selective action ensures safety on rice while targeting only weeds
- WDG Formulation: Water Dispersible Granule for easy mixing and uniform spraying
Technical Composition:
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Active Ingredient
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Pyrazosulfuron-Ethyl
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Concentration
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70% WDG (Water Dispersible Granules)
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Mode of Action
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ALS enzyme inhibitor – prevents amino acid synthesis in weeds
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Application Timing
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Pre-emergence and early post-emergence (up to 15 days after transplanting)
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Target Weeds:
- Grassy Weeds: Echinochloa spp., Dactyloctenium spp.
- Sedges: Cyperus spp., Fimbristylis spp.
- Broadleaf Weeds: Ammania spp., Monochoria spp., Ludwigia spp.
Recommended Crop:
- Paddy (Rice) – Suitable for both transplanted and direct-seeded rice fields.
Usage Instructions:
- Apply within 0–15 days after transplanting or sowing
- Use clean water for spray preparation
- Maintain shallow water (2–3 cm) in the field for 3–5 days post-application
Precautions:
- Do not apply on water-stressed or drought-affected crops
- Wear gloves and mask during handling and application
- Store in a dry, cool place away from food and animal feed
FAQs for Dhanuka Chempa (Pyrazosulfuron Ethyl 70% WDG) Herbicide :
1. What type of weeds does Dhanuka Chempa control?
Ans. Dhanuka Chempa is highly effective against broadleaf weeds, sedges, and some grassy weeds commonly found in rice fields, such as Cyperus difformis, Echinochloa spp., and Fimbristylis spp.
2. When should Chempa be applied for best results?
Ans. Apply it within 10–15 days after transplanting (DAT) or sowing of rice. Early application ensures better weed control and less competition for nutrients.
3. Is Dhanuka Chempa safe for the paddy crop?
Ans. Yes, when applied at the recommended dosage, it is selective and safe for transplanted or direct-seeded rice.
4. Can I use Dhanuka Chempa in standing water?
Ans. Yes, the herbicide is effective in paddy fields with standing water (2–3 cm). It is water-soluble and works well in flooded conditions.
5. What is the dosage of Chempa per acre?
Ans. The recommended dosage is 120 gm per acre, mixed thoroughly with water (150–200 liters per acre) and sprayed evenly over the field.
6. Does this product require any adjuvant or mixing agent?
Ans. No, Dhanuka Chempa comes in a WDG (Water Dispersible Granule) form and does not need any additional surfactant or adjuvant for effective performance.
7. What is the mode of action of Pyrazosulfuron Ethyl?
Ans. It inhibits the ALS (Acetolactate Synthase) enzyme in weeds, which stops amino acid synthesis, resulting in the death of the weed.
