Clavengo Herbicide
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Clavengo® Herbicide (Glufosinate Ammonium 13.5% SL) – Syngenta
The Professional "Burn-Down" Solution for Tough Weed Control in Cotton & Tea
Struggling with weeds that just won't die? Clavengo® by Syngenta is a powerful, non-selective herbicide designed to bridge the gap between fast-acting contact sprays and slow-acting systemic chemicals. It effectively eliminates stubborn weeds, including those resistant to Glyphosate, making it the perfect choice for modern Cotton and Tea farming.
Best For: Farmers seeking rapid weed control without long-term soil damage.
Why Choose This Product? Key Benefits
- ⏱️Rapid Action: Visible wilting in just 6–12 hours; complete death in 5–7 days.
- ?️Resistance Breaker: Kills tough weeds (like Eleusine and Parthenium) that other herbicides miss.
- ⏳Zero Soil Residual: Degrades rapidly in soil (approx. 9 days), ensuring safety for your next crop.
- ?️Rainfastness: Remains effective even if it rains 4–6 hours after spraying.
- ?Broad Spectrum: Controls grasses, broadleaves, and sedges in one shot.
Technical Specifications
| Parameter | Details |
|---|---|
| Brand Name | Clavengo® |
| Technical Name | Glufosinate Ammonium 13.5% SL (w/w) |
| IRAC MoA Code | Group 10 (Glutamine Synthetase Inhibitor) |
| Chemical Group | Phosphinic Acid |
| Formulation | Soluble Liquid (SL) / Enhanced EC properties |
| Toxicity Label | Danger (Moderately Toxic) |
How It Works: Mode of Action
Clavengo works differently than Glyphosate. It is primarily a contact herbicide with limited movement inside the plant.
- Absorption: The spray lands on the green parts of the weed (leaves/stems) and is absorbed.
- Inhibition: It blocks an essential enzyme called Glutamine Synthetase.
- Elimination: This blockage causes toxic ammonia to build up rapidly inside the plant cells, destroying tissue and stopping photosynthesis, leading to quick death.
Note: Because it kills on contact, good coverage of the weed foliage is essential.
Target Crops & Pests
| Crop | Target Pest(s) |
|---|---|
| Cotton | Cynodon dactylon, Cyperus rotundus, Digera arvensis, Commelina benghalensis |
| Tea | Borreria hispida, Imperata cylindrica, Digitaria sanguinalis, Ageratum conyzoides |
| Non-Crop Areas | General vegetation, Parthenium, Hardened weeds |
Dosage & Application Guide
The Golden Rule: Always follow the "Dose per Acre" for accurate results. Use High Water Volume (200L) for best coverage.
Dosage per Acre, Litre, & Pre-Harvest Interval (PHI)
| Crop | Dose (ml / Acre) | Water (L / Acre) | Dose (ml / Litre) | PHI (Days) |
|---|---|---|---|---|
| Cotton | 1000 – 1200 ml | 200 Liters | ~ 5 – 6 ml | 96 Days |
| Tea | 1000 – 1320 ml | 200 Liters | ~ 5 – 6.6 ml | 15 Days |
| Orchards/Non-Crop | 800 – 1200 ml | 200 Liters | ~ 4 – 6 ml | - |
*PHI = Pre-Harvest Interval: The minimum number of days to wait between the last spray and harvesting.
How to Apply: Best Practices
- Timing: Apply when weeds are actively growing (2–4 leaf stage). Efficacy is best on bright, sunny days.
- Mixing: Use clean water. Do not mix with highly alkaline substances (lime/sulphur).
- Coverage: Use Flat Fan or Flood Jet nozzles. Ensure full wetting of the weed foliage.
- Safety: Always wear PPE (gloves, mask, goggles). Wash hands thoroughly after use. [Image of PPE kit for pesticide application]
Frequently Asked Questions
1. Is Clavengo safe for Cotton crops?
Yes, but ONLY if you use a Spray Hood/Shield. Do not let the spray touch the cotton leaves or stem, as it will burn the crop.
2. Does it kill the roots of weeds (Systemic action)?
Clavengo is primarily a contact herbicide with limited movement. It burns down the visible parts of the weed completely. For deep-rooted perennials like Nutgrass, it suppresses regrowth significantly but may not kill the tubers in one go.
3. What happens if it rains after spraying?
Clavengo is rainfast within 4 to 6 hours. If it rains after this period, you do not need to respray.
4. Can I mix Clavengo with other herbicides?
It is generally compatible with pre-emergence herbicides for long-term control, but always check the label. Avoid mixing with heavy clay suspensions.
5. Is there an antidote for accidental poisoning?
No specific antidote exists. Treatment is symptomatic. Prevention is key—always wear protective gear (gloves, goggles, boots) to avoid skin or eye contact.
Safety & Disclaimer
Always read and follow the instructions on the official product label. The information provided here is for guidance only. Use personal protective equipment (PPE) during application.