Terrox Topramezone 33.6% Sc
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Terrox Herbicide: The Ultimate Maize Weed Control Solution (Topramezone 33.6% SC)
Secure your corn yield with Insecticides (India) Limited's advanced post-emergence technology.
Maize farming in India faces a tough enemy: resistant weeds like Echinochloa and Parthenium that steal nutrients and reduce yields by up to 60%. Manual weeding is expensive and labor is hard to find.
Terrox (Topramezone 33.6% SC) is the "Maharatna" solution designed to solve this problem. It is a powerful, selective post-emergence herbicide that kills tough weeds without harming your maize crop. By stopping weeds early (20–25 days after sowing), Terrox ensures your crop gets all the nutrition it needs for a bumper harvest.
Why Choose This Product? Key Benefits
- ⏱️Rapid "Bleaching" Action: Stops weed growth almost immediately. You will see weeds turning white (bleaching) within days, ensuring they stop competing for nutrients.
- ?️Complete Crop Safety: Highly selective formulation. While it kills weeds, your maize plants rapidly detoxify the chemical, keeping the crop 100% safe and green.
- ⏳Flexible Application Window: Perfect for the "Critical Period." Apply when weeds have 2 to 5 leaves (approx. 20–25 days after sowing) for maximum impact.
- ?️Broad Spectrum Control: Effectively controls both narrow-leaf grasses (like Barnyard grass) and broad-leaf weeds, including tough ones like Parthenium.
- ?Cost-Effective Yield Booster: Cheaper than manual labor. By clearing weeds early, it protects your yield potential, offering a high Return on Investment (ROI).
Technical Specifications
| Parameter | Details |
|---|---|
| Brand Name | Terrox |
| Technical Name | Topramezone 33.6% SC |
| IRAC MoA Code | Group 27 (HPPD Inhibitor) |
| Chemical Group | Phenyl Pyrazolyl Ketone (Pyrazolone) |
| Formulation | Suspension Concentrate (SC) |
| Toxicity Label | Blue/Green Triangle (Moderate to Low Toxicity) |
How It Works: Mode of Action
Terrox works by disrupting the weed's internal chemistry. It inhibits the 4-HPPD enzyme, which is crucial for the plant's survival.
- Absorbtion: When sprayed (with MSO adjuvant), the active ingredient Topramezone is quickly absorbed by the weed leaves and roots.
- Carotenoid Stop: It blocks the production of carotenoids. Carotenoids act like "sunscreen" for the plant's chlorophyll.
- Solar Destruction: Without this protection, sunlight destroys the chlorophyll. The weed turns white (bleaches), tissues die (necrosis), and the plant completely collapses.
Note: Maize plants naturally break down Topramezone quickly, which is why the crop remains unaffected.
Target Crops & Pests
| Crop | Target Pest(s) |
|---|---|
| Maize (Corn) | Echinochloa spp. (Barnyard Grass) |
| Maize (Corn) | Parthenium hysterophorus (Carrot Grass) |
| Maize (Corn) | Trianthema monogyna (Horse Purslane) & Amaranthus spp. |
Dosage & Application Guide
The Golden Rule: Always follow the "Dose per Acre" for accurate results. Never under-dose or over-dose.
Dosage per Acre, Litre, & Pre-Harvest Interval (PHI)
| Crop | Dose (ml / Acre) | Water (L / Acre) | Dose (ml / Litre) | PHI (Days) |
|---|---|---|---|---|
| Maize | 30 - 40 ml | 150 - 200 L | 0.2 ml | 83 |
| (With Adjuvant) | + MSO (Oil) | Mandatory | 2 ml MSO / L | - |
| (Optional Mix) | + Atrazine 50% WP | 500g / Acre | - | - |
*PHI = Pre-Harvest Interval: The minimum number of days to wait between the last spray and harvesting.
How to Apply: Best Practices
- Timing: Spray when weeds are at the 2 to 5 leaf stage. This typically happens 20–25 days after sowing. Weeds taller than 6 inches are harder to kill.
- Mixing: Always add MSO (Methylated Seed Oil) adjuvant at 2ml per liter of water. Topramezone needs this oil to penetrate the waxy weed leaves. Tank mixing with Atrazine increases the "burn down" effect.
- Coverage: Use Flat Fan or Flood Jet nozzles. Ensure the soil has adequate moisture when spraying for the best absorption.
- Safety: Always wear PPE (gloves, mask, goggles). Wash hands thoroughly after use.
Frequently Asked Questions
1. Can I use Terrox on crops other than Maize?
No. Terrox is specifically designed for Maize. Other crops do not have the specific enzymes to break down the chemical and will be damaged or killed.
2. Is the MSO adjuvant really necessary?
Yes, absolutely. Without MSO, the herbicide cannot penetrate the weed leaf effectively, dropping efficacy from >95% to below 60%.
3. Can I mix Atrazine with Terrox?
Yes, mixing 500g of Atrazine (50% WP) per acre with Terrox is a recommended practice. It creates a synergistic effect that controls weeds faster and keeps the field clean longer.
4. What happens if I spray after the 5-leaf stage?
Weeds become tougher as they grow. If you spray late (weeds >6 inches), they may only be stunted or bleached temporarily but might recover. Early application is key.
5. What is the rainfastness of Terrox?
Once the spray has dried on the leaf (usually 1-2 hours), it is rainfast. However, for best results, avoid spraying if rain is imminent.
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.
