Solaro Herbicide (Atrazine 50% WP) by PI Industries
The Ultimate "Start Clean" Weed Solution for Maize and Sugarcane Farmers.
Solaro (Atrazine 50% WP) is a powerful, broad-spectrum herbicide designed to stop weeds before they grow. Manufactured by PI Industries, this wettable powder formulation provides an invisible shield over your soil, preventing aggressive weeds from competing with your crop during the critical early stages of growth.
Best For: Farmers looking for an economical, pre-emergence solution to control broadleaf weeds and grasses in Corn (Maize) and Sugarcane.
Why Choose This Product? Key Benefits
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Pre-Emergence Power: Applied within 3 days of sowing, it kills weeds as they germinate, giving your crop a head start.
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Long-Lasting Residual Action: Stays active in the soil to provide prolonged protection against new weed flushes for weeks.
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Highly Selective Safety: Advanced chemistry naturally distinguishes between your crop and the weeds. It kills the weeds but leaves Maize and Sugarcane completely unharmed.
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Broad Spectrum Control: Effectively tackles tough broadleaf weeds like Horse Purslane (Trianthema) and Amaranthus.
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Cost-Effective Quality: A high-quality formulation from PI Industries that offers superior suspension and coverage at an affordable price per acre.
Technical Specifications
| Parameter | Details |
|---|---|
| Brand Name | Solaro |
| Technical Name | Atrazine 50% WP |
| IRAC MoA Code | Group 5 (Photosynthesis Inhibitor) |
| Chemical Group | Chlorotriazines |
| Formulation | Wettable Powder (WP) |
| Toxicity Label | Blue Triangle (Moderately Toxic) |
How It Works: Mode of Action
Solaro works by disrupting the energy production system within the weed. It is absorbed primarily through the roots and moves upward to the leaves.
[Image of photosynthesis inhibition in plants]
- Root Absorption: When applied to moist soil, the weed seeds or seedlings absorb the chemical through their roots.
- Systemic Transport: The herbicide travels up the plant's water-transport system (xylem) to the leaves.
- Energy Blockade: It blocks Photosystem II, preventing the weed from converting sunlight into energy. This causes the weed to turn yellow (chlorosis), starve, and eventually die.
Note: Maize and Sugarcane have special enzymes that break down Atrazine rapidly, keeping the crop safe while the weeds perish.
Target Crops & Pests
| Crop | Target Pest(s) |
|---|---|
| Maize (Corn) | Trianthema (Carpet Weed), Digera, Amaranthus, Barnyard Grass, Goosegrass. |
| Sugarcane | Euphorbia, Purslane, Wild Amaranth, and various annual grasses. |
| General Application | Most effective on broadleaf weeds and small-seeded annual grasses. |
Dosage & Application Guide
The Golden Rule: Always follow the "Dose per Acre" for accurate results. Solaro is a powder, so ensure it is fully dissolved.
Dosage per Acre, Litre, & Pre-Harvest Interval (PHI)
| Crop | Dose (g / Acre) | Water (L / Acre) | Dose (g / Litre) | PHI (Days) |
|---|---|---|---|---|
| Maize (Light Soil) | 400 - 600 g | 200 L | 2 - 3 g | 60 |
| Maize (Heavy Soil) | 600 - 800 g | 200 L | 3 - 4 g | 60 |
| Sugarcane | 400 - 1600 g | 200 - 300 L | 2 - 5.3 g | 60 |
*PHI = Pre-Harvest Interval: The minimum number of days to wait between the last spray and harvesting. Use higher doses for heavy clay soils.
How to Apply: Best Practices
- Timing: Best applied Pre-Emergence (0–3 days after sowing). Can be used Early Post-Emergence up to the 2-leaf stage of weeds.
- Mixing: Premix the required quantity of Solaro in a small bucket of water to form a smooth paste before adding it to the spray tank. Agitate continuously.
- Coverage: Soil moisture is critical. Apply immediately after irrigation or rain to ensure the chemical activates in the soil.
- Safety: Always wear PPE (gloves, mask, goggles) to avoid inhaling the powder. Wash hands thoroughly after use.
Frequently Asked Questions
1. When is the best time to spray Solaro?
The ideal time is immediately after sowing, within 0 to 3 days (Pre-emergence). This prevents weeds from ever coming up.
2. Can I use Solaro on any crop?
No. Solaro is specifically designed for Maize (Corn) and Sugarcane. Using it on other crops like cotton or vegetables may kill or damage them.
3. Does it kill big weeds?
No. Solaro is most effective on germinating seeds or very small seedlings (2-leaf stage). It will not kill large, established weeds effectively.
4. Can I mix Solaro with other herbicides?
Yes, farmers often tank-mix Solaro with Pendimethalin for better grass control, or with Topramezone (Elite) for a synergistic knockdown effect.
5. What safety gear should I wear?
Solaro is a wettable powder that can create dust. You must wear a mask to prevent inhalation, along with gloves and long sleeves to avoid skin 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.
