Roko Fungicide: Complete Use Guide for Indian Farmers
रोको कवकनाशी
Roko Fungicide (Thiophanate-methyl 70% WP) is a systemic, broad-spectrum fungicide widely used in India to control blast, anthracnose, and powdery mildew across paddy, wheat, vegetables, and other crops. The recommended dose is 2g per litre of water.
What Is Roko Fungicide?
Roko is a WP (wettable powder) formulation containing Thiophanate-methyl 70% as the active ingredient. It belongs to the benzimidazole group of fungicides and works by inhibiting cell division in fungal cells (microtubule inhibitor). Being systemic, it is absorbed by the plant and moves upward through the xylem to protect unsprayed tissues.
- Active Ingredient: Thiophanate-methyl 70% WP
- Formulation: Wettable Powder (WP)
- Mode of Action: Systemic, contact + protective
- IRAC Group: Group 3 (MBC fungicides)
Diseases Controlled by Roko Fungicide
Roko is effective against a wide range of fungal diseases that cause significant yield losses in India:
- Paddy Blast (Magnaporthe oryzae) — leaf blast, neck blast, node blast
- Powdery Mildew — wheat, cucurbits, grapes
- Anthracnose — mango, grapes, chili, tomato
- Sigatoka Leaf Spot — banana
- Early and Late Blight — potato, tomato
- Wilt and Foot Rot — general crops
Roko Fungicide Dose and Application
The standard dose for Roko Fungicide is 2 grams per litre of water. The table below gives crop-specific dose recommendations:
| Crop | Disease | Dose (per litre) | Application |
|---|---|---|---|
| Paddy (Rice) | Blast (leaf & neck) | 2g/L | Foliar spray at first sign; repeat in 14 days |
| Wheat | Powdery Mildew | 2g/L | Preventive spray at tillering stage |
| Tomato / Potato | Early Blight, Late Blight | 2g/L | Spray at 10–14 day intervals |
| Mango | Anthracnose | 2g/L | Pre-harvest + post-harvest |
| Grape | Powdery Mildew, Anthracnose | 2g/L | Spray during berry development |
| Banana | Sigatoka Leaf Spot | 2g/L | Spray at 21-day intervals |
General guidance: Use 200–400 litres of spray solution per acre depending on crop canopy. Do not spray during extreme heat (>40°C) or within 3 hours of expected rain.
How to Prepare Roko Fungicide Spray Solution
- Fill the spray tank one-third with clean water.
- Add the required quantity of Roko powder (e.g., 40g for 20 litres of water).
- Stir well to dissolve — the WP formulation mixes easily.
- Fill the tank to the required volume and agitate again.
- Apply immediately — do not store mixed solution.
Roko Fungicide Price in India
Roko Fungicide is available on Farmkart with pan-India delivery. Prices vary by pack size (50g, 100g, 250g, 500g). Buying in larger packs offers better value per gram.
Check current Roko Fungicide price on Farmkart →
Precautions When Using Roko Fungicide
- Wear protective gloves and mask when handling the powder.
- Avoid mixing with copper-based fungicides (can reduce efficacy).
- Follow a resistance management rotation — do not use Roko more than 3 consecutive sprays per season.
- Pre-Harvest Interval (PHI): 7–14 days depending on crop — check the label.
- Keep out of reach of children and store in a cool, dry place.
Roko Fungicide Resistance Management
Thiophanate-methyl belongs to FRAC Group 1 (MBC fungicides). Continuous use without rotation can lead to resistance. Alternate Roko with fungicides from a different mode-of-action group — e.g., triazoles (FRAC Group 3) such as Tebuconazole or propiconazole — each season for best long-term control.
Frequently Asked Questions about Roko Fungicide
What is the dose of Roko Fungicide per litre?
The recommended dose of Roko Fungicide (Thiophanate-methyl 70% WP) is 2 grams per litre of water. For a 15-litre knapsack sprayer, use 30g of Roko.
Which crops can Roko Fungicide be used on?
Roko is registered for use on paddy (rice), wheat, tomato, potato, mango, grape, banana, and many vegetable crops. It is one of the most versatile fungicides available in India for broad-spectrum disease control.
Is Roko Fungicide systemic or contact?
Roko is a systemic fungicide. Once absorbed by the plant, it moves upward through the xylem and protects untreated new growth. It also has contact action against spores on treated surfaces.
Can Roko Fungicide be used for paddy blast?
Yes. Roko is one of the most commonly recommended fungicides for paddy blast (leaf blast and neck blast) in India. Apply at 2g/L as soon as blast symptoms appear on leaves, and repeat after 14 days if necessary.
What is the technical name of Roko Fungicide?
The technical (active ingredient) name is Thiophanate-methyl 70% WP. Other brand names for the same molecule in India include Topsin M, Roko, Comet, and others.
Where can I buy Roko Fungicide online?
You can buy genuine Roko Fungicide online from Farmkart.com with fast pan-India delivery. Farmkart carries only government-approved, genuine agri inputs.
