Terrox Herbicide (Topramezone 33.6% SC)
The Specialist Post-Emergence Solution for Maize Weed Control
Terrox is a premium, broad-spectrum herbicide designed specifically for Maize (Corn) farmers. It solves the biggest headache in farming: labor shortages and tough grassy weeds. Unlike manual weeding which is expensive and slow, Terrox works systematically to clear your field of stubborn weeds like Echinochloa and Parthenium without harming your crop. It creates a "bleaching" effect on weeds, stopping them in their tracks so your corn gets all the nutrition.
Why Choose This Product? Key Benefits
-
⏱️
Visible "Bleaching" Action: Weeds turn white and stop growing within 3 to 4 days of application, giving you quick visual confirmation that the product is working.
-
🛡️
100% Safe for Maize: While it is deadly to weeds, Terrox is gentle on your corn. The maize plant naturally breaks down the chemical, ensuring zero crop damage.
-
⏳
Flexible Application Window: Perfect for the "rescue" stage. Apply it when weeds are at the 2 to 5 leaf stage (usually 20-25 days after sowing).
-
🌧️
Superior Rainfastness: The high-quality Suspension Concentrate (SC) formulation sticks to leaves quickly, reducing the risk of wash-off during unpredictable weather.
-
🌿
Controls Tough Weeds: Highly effective against resistant grasses (Barnyard grass) and broadleaf weeds (Carrot grass/Parthenium) that other herbicides miss.
Technical Specifications
| Parameter | Details |
|---|---|
| Brand Name | Terrox |
| Technical Name | Topramezone 33.6% SC |
| IRAC MoA Code | Group 27 (HPPD Inhibitor) |
| Chemical Group | Pyrazolone (Phenyl Pyrazolyl Ketone) |
| Formulation | Suspension Concentrate (SC) |
| Toxicity Label | Blue/Green (Moderate to Low Toxicity) |
How It Works: Mode of Action
Terrox works by starving the weed of its protection against the sun. It targets a specific enzyme called HPPD in the plant's chloroplasts.
[Image of plant chloroplast structure]- Enzyme Blockage: The active ingredient, Topramezone, enters the weed and blocks the HPPD enzyme, which is responsible for making protective vitamins (Carotenoids).
- Loss of Sunscreen: Without these Carotenoids, the weed's chlorophyll (green color) loses its protection against sunlight.
- Bleaching & Death: The intense solar energy burns the chlorophyll. The weed turns pure white (bleaches), dries up (necrosis), and dies completely.
[Image of weed bleaching symptoms]
Target Crops & Pests
| Crop | Target Pest(s) |
|---|---|
| Maize (Corn) | Echinochloa spp. (Barnyard Grass), Digitaria sanguinalis |
| Maize (Corn) | Parthenium hysterophorus (Carrot Grass), Celosia argentea |
| Maize (Corn) | Amaranthus viridis, Trianthema portulacastrum |
Dosage & Application Guide
The Golden Rule: Always follow the "Dose per Acre" for accurate results. Using less water than recommended can reduce results.
Dosage per Acre, Litre, & Pre-Harvest Interval (PHI)
| Crop | Dose (ml / Acre) | Water (L / Acre) | Dose (ml / Litre) | PHI (Days) |
|---|---|---|---|---|
| Maize | 30 ml - 40 ml | 150 - 200 L | ~0.2 ml | 83 Days |
| Adjuvant (MSO) | 300 ml - 400 ml | -- | 2 ml / Litre | -- |
| Atrazine (Tank Mix) | 500 g (50% WP) | -- | -- | -- |
*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. Do not wait until weeds are tall (over 6 inches), or they may recover. This usually happens 20-25 days after sowing.
- Mixing (Mandatory): You MUST use an adjuvant like MSO (Methylated Seed Oil) at 2 ml per liter of water. Without MSO, the medicine cannot penetrate the oily leaf of the weed.
- Coverage: Use Flat Fan or Flood Jet nozzles for uniform spray. Avoid Cone nozzles. Ensure the soil has adequate moisture when you spray.
- Safety: Always wear PPE (gloves, mask, goggles). Wash hands thoroughly after use.
Frequently Asked Questions
1. Will Terrox harm my corn crop?
No. Terrox is highly selective. Maize plants have natural enzymes that break down the herbicide rapidly, keeping the crop safe while killing the weeds.
2. Why do I need to add MSO (Oil) to the tank?
Topramezone needs help to penetrate the waxy coating of grass weeds. MSO softens this wax, allowing the herbicide to enter the leaf and work effectively.
3. Can I mix Terrox with Atrazine?
Yes, this is highly recommended. Mixing Terrox (30ml) with Atrazine (500g) creates a powerful synergy that burns down existing weeds and provides residual control against new sprouts.
4. What if it rains after spraying?
Terrox is a high-quality Suspension Concentrate. If it stays on the leaf for 1-2 hours without rain, it is generally rainfast and will remain effective.
5. Does it control Parthenium (Carrot Grass)?
Yes, Terrox is excellent against Parthenium. It is also safe for workers as it clears this allergy-causing weed from the field.
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.
