Zorya Herbicide (Mesotrione 40% SC)
A powerful, selective herbicide for superior weed control in Maize and Sugarcane.
Zorya is a high-performance, systemic herbicide powered by Mesotrione 40% SC. It offers flexible pre- and post-emergence control, absorbing through both leaves and roots to stop weeds dead.
Its unique HPPD-inhibiting action stops weed growth, causing a visible "bleaching" (whitening) within days, followed by complete plant death.
Why Choose Zorya? Key Benefits
-
⏱️
Flexible Application Timing: Use as a post-emergence spray on young weeds (2-4 leaf stage) or as a pre-emergence herbicide for residual control (requires rain for activation).
-
🛡️
Broad-Spectrum Power: Uniquely controls both stubborn broadleaf weeds (like Amaranthus) AND difficult grassy weeds (like Bermuda Grass) and sedges (like Purple Nutsedge).
-
⏳
Systemic & Thorough Action: Zorya is absorbed by both leaves and roots and moves throughout the entire weed—from tip to root—for a complete, long-lasting kill.
-
🌧️
Visible "Bleaching" Action: The signature whitening of weeds provides a clear visual confirmation that the product is working effectively.
-
🌿
Favorable Profile: As per CIB-RC, it is classified as "less toxic" to honey bees, making it a responsible choice for integrated pest management when used as directed.
Technical Specifications
| Parameter | Details |
|---|---|
| Brand Name | Zorya |
| Technical Name | Mesotrione 40% w/w SC (48% w/v) |
| IRAC MoA Code | Group 27 |
| Chemical Group | Triketone / Benzoylcyclohexanedione |
| Formulation | SC (Suspension Concentrate) |
| Toxicity Label | Caution |
How It Works: Mode of Action
Zorya is a systemic (ambimobile) herbicide, meaning it's absorbed by both the leaves and roots of the weed and translocated throughout the plant.
- Inhibition: It works by inhibiting the HPPD enzyme (HRAC Group 27).
- Bleaching Action: This stops the weed from producing carotenoids, which act as a "sunscreen" for chlorophyll. Without this protection, sunlight rapidly destroys the chlorophyll.
- Weed Death: This "bleaching" effect (visible whitening) is followed by necrosis and the complete death of the weed, typically within two weeks.
Target Crops & Pests (CIB-Approved)
| Crop | Target Pest(s) |
|---|---|
| Maize | Commelina benghalensis (Bengal Dayflower), Amaranthus viridis (Green Amaranth) |
| Sugarcane | Cyperus rotundus (Purple Nutsedge), Euphorbia hirta (Asthma-plant), Amaranthus viridis, Cynodon dactylon (Bermuda Grass) |
| General (Broad Spectrum) | Also provides control for other key weeds like Large Crabgrass and Velvetleaf. |
Dosage & Application Guide
The Golden Rule: Always follow the "Dose per Acre" for accurate results.
Dosage per Acre, Litre, & Pre-Harvest Interval (PHI)
| Crop | Dose (ml / Acre) | Water (L / Acre) | Dose (ml / Litre) | PHI (Days) |
|---|---|---|---|---|
| Maize | 140 ml | 200 L | 0.7 ml | 42 Days |
| Sugarcane | 140 ml | 200 L | 0.7 ml | N/A (Refer to label) |
*PHI = Pre-Harvest Interval: The minimum number of days to wait between the last spray and harvesting.
How to Apply: Best Practices
- Timing: Apply as a post-emergence spray when weeds are actively growing, ideally at the 2-4 leaf stage.
- Mixing: Fill the spray tank with half the required water, add Zorya, and then add the remaining water. For enhanced performance, Zorya has excellent synergy and can be tank-mixed with Atrazine (always perform a jar test first).
- Coverage: Use a flat fan nozzle to ensure uniform and thorough coverage of the weed foliage.
- Safety: Always wear PPE (gloves, mask, goggles). Wash hands thoroughly after use.
Frequently Asked Questions
1. What crops can I use Zorya on?
Zorya is officially approved by the CIB-RC for use on Maize and Sugarcane in India.
2. Will Zorya control tough grasses like Bermuda Grass?
Yes. Unlike many herbicides, Zorya is proven effective against difficult-to-control grassy weeds like Cynodon dactylon (Bermuda Grass) and sedges like Cyperus rotundus (Purple Nutsedge), in addition to broadleaf weeds.
3. How do I know if Zorya is working?
You'll see the classic sign of HPPD inhibition: susceptible weeds will turn white or "bleach" a few days after application. This is followed by complete death.
4. Can I mix Zorya with other herbicides?
Yes. Zorya is an excellent tank-mix partner. It has a well-known synergistic (boosting) effect when mixed with Atrazine. Always conduct a small "jar test" to check for physical compatibility before filling your main tank.
5. What is the waiting period before I can harvest?
For Maize, the Pre-Harvest Interval (PHI) is 42 days. Always follow the specific waiting period on the product label for your crop.
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.
