Biostadt Roko Flo Fungicide (Thiophanate-methyl 41.7% SC)
The advanced liquid solution for broad-spectrum disease control in Paddy, Chilli, and Vegetables.
Biostadt Roko Flo is a modern Suspension Concentrate (SC) fungicide. Unlike older powders, this "flowable" liquid mixes instantly and provides superior coverage. It works through a dual-action system (Systemic & Contact) to prevent and cure fungal attacks like Blast, Anthracnose, and Wilt. It enters the plant quickly, protecting new leaves and ensuring your crop stays green and healthy.
Ideal for: Farmers looking for a rainfast, easy-to-mix alternative to Roko WP for long-lasting disease protection.
Why Choose This Product? Key Benefits
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Instant Mixing (Flowable Tech): As a liquid SC formulation, it disperses instantly in water without forming lumps, ensuring every drop of spray is effective.
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Dual Action Protection: It works as a preventive shield to stop disease entry and as a curative medicine to stop existing infections from spreading.
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Systemic Long-Lasting Control: Once sprayed, it moves upwards (acropetal action) inside the plant, protecting even the new leaves that grow after application.
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Excellent Rainfastness: Absorbs into the plant system within 2 to 4 hours, meaning unexpected rain won't wash away your investment.
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Phytotonic Effect: Contains restorative properties that keep leaves greener for longer, aiding in better photosynthesis and higher yields.
Technical Specifications
| Parameter | Details |
|---|---|
| Brand Name | Roko Flo |
| Technical Name | Thiophanate-methyl 41.7% SC |
| IRAC MoA Code | Group 1 |
| Chemical Group | Benzimidazole |
| Formulation | Suspension Concentrate (SC) |
| Toxicity Label | Blue Triangle (Moderately Toxic) |
How It Works: Mode of Action
Roko Flo operates as a "pro-fungicide" with a unique metabolic activation process.
- Absorption & Conversion: Upon spraying, the active ingredient penetrates the leaf cuticle. Inside the plant, it converts into Carbendazim (MBC), a powerful antifungal agent.
- Mitotic Arrest: The fungicide targets the fungal cell's skeleton (specifically Beta-tubulin). It prevents the fungus from dividing its cells (Mitosis). [Image of fungal cell division inhibition]
- Disease Stop: Without the ability to divide and grow, the fungus dies, and the spread of disease (like Blast or Scab) stops immediately.
Note: Because it moves upward (acropetal), it protects the upper canopy where disease pressure is usually highest.
Target Crops & Pests
| Crop | Target Pest(s) |
|---|---|
| Paddy (Rice) | Blast (Leaf & Neck), Sheath Rot, Grain Discoloration |
| Chilli & Tomato | Anthracnose (Fruit Rot), Die-back, Wilt, Leaf Spot [Image of chilli anthracnose] |
| Groundnut & Pulses | Tikka Disease (Leaf Spot), Rust, Powdery Mildew |
| Apple & Grapes | Scab, Powdery Mildew, Anthracnose |
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) |
|---|---|---|---|---|
| Paddy | 400 ml | 200 L | 2.0 ml | 37 |
| Chilli / Veg | 400 ml | 200 L | 2.0 ml | 10 |
| Groundnut | 400 ml | 200 L | 2.0 ml | 27 |
| Fruits (Apple/Grape) | 280 - 300 ml | 200 L+ | 0.5 - 1.0 ml | Based on MRL |
*PHI = Pre-Harvest Interval: The minimum number of days to wait between the last spray and harvesting.
How to Apply: Best Practices
- Timing: Apply preventively (before disease is severe) or at the very first sign of spots. Early morning or late afternoon is best to avoid heat.
- Mixing: Use clean water with a pH of 6-7. Do NOT mix with alkaline chemicals like Bordeaux Mixture or Lime Sulfur, as this destroys the medicine.
- Coverage: Ensure uniform coverage. For soil-borne wilt, drench the soil around the roots rather than spraying the leaves.
- Safety: Always wear PPE (gloves, mask, goggles). Wash hands thoroughly after use. Avoid spraying during peak bee foraging hours.
Frequently Asked Questions
1. What is the difference between Roko and Roko Flo?
Roko is a Wettable Powder (70% WP), while Roko Flo is a liquid Suspension Concentrate (41.7% SC). Roko Flo is easier to mix, has smaller particles for better coverage, and sticks better to leaves.
2. Is Roko Flo rainfast?
Yes. Once the spray dries on the leaf (typically 2-4 hours), it is absorbed into the plant and will not be washed away by rain.
3. Can I mix it with insecticides?
Yes, Roko Flo is compatible with most common insecticides like Imidacloprid and Chlorpyrifos. However, avoid highly alkaline mixtures.
4. Can it cure Wilt disease?
Yes, but for Wilt, you must apply it as a soil drench (pouring the solution near the roots) so the roots can absorb it. Foliar spraying is less effective for root wilt.
5. Why should I rotate Roko Flo with other fungicides?
Using the same fungicide repeatedly can cause the fungus to become resistant. Rotate Roko Flo with a contact fungicide like Mancozeb to keep it effective for years.
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. Avoid use near water bodies containing fish.
