Prism-Thiaphonate Methyl 70% WP
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Prism Fungicide (Thiophanate Methyl 70% WP) – Systemic Disease Control
The "Green Label" Systemic Solution for Anthracnose, Scab, and Powdery Mildew.
Don't just fight fungus—boost your crop's health. Prism by Insecticides (India) Limited is a powerful systemic fungicide that absorbs into the plant to provide deep, long-lasting protection. Unlike simple surface sprays, Prism works from the inside out to cure existing infections and prevent new ones.
Best For: Apple Scab, Papaya Anthracnose, Grape Mildew, and Vegetable diseases.
Why Choose This Product? Key Benefits
- ⏱️Dual Action Power: Acts as both a Preventive shield (stops disease before it starts) and a Curative medicine (stops disease spread after infection).
- ?️Deep Systemic Protection: Absorbed by roots and leaves, it travels through the plant system (Xylem) to protect new growth that wasn't even sprayed.
- ⏳Long-Lasting Results: Because it stays inside the plant tissue, it offers extended protection compared to contact fungicides that wash off easily.
- ?️Rainfast in 2-4 Hours: Quick absorption means your investment is safe even if it rains a few hours after spraying.
- ?"Phytotonic" Greening Effect: Farmers love Prism because it releases sulfur and nitrogen, making the crop look greener, healthier, and more stress-resistant.
Technical Specifications
| Parameter | Details |
|---|---|
| Brand Name | Prism (Insecticides India Ltd.) |
| Technical Name | Thiophanate Methyl 70% WP |
| IRAC MoA Code | Group 1 (Benzimidazoles) |
| Chemical Group | Systemic Fungicide |
| Formulation | Wettable Powder (WP) |
| Toxicity Label | Green Triangle (Slightly Toxic) |
How It Works: Mode of Action
Prism acts as a "Pro-Drug" precursor to Carbendazim. Here is the step-by-step process:
- Absorption: Upon spraying or drenching, the active ingredient is rapidly absorbed by the plant surface (leaves or roots).
- Conversion: Once inside the plant, Thiophanate Methyl converts into Carbendazim (MBC), the active fungal killer.
- Disruption: It binds to the fungus's tubulin proteins, effectively stopping cell division (mitosis). The fungus cannot grow or reproduce and eventually dies.
Note: This systemic movement protects new leaves that emerge after you spray!
Target Crops & Pests
| Crop | Target Pest(s) |
|---|---|
| Papaya | Anthracnose, Powdery Mildew |
| Apple | Apple Scab, Powdery Mildew |
| Grapes | Powdery Mildew, Anthracnose, Rust |
| Vegetables (Tomato/Gourd) | Leaf Spot, Ring Rot, Anthracnose |
Dosage & Application Guide
The Golden Rule: Always follow the "Dose per Acre" for accurate results, as water volume may vary based on spray equipment.
Dosage per Acre, Litre, & Pre-Harvest Interval (PHI)
| Crop | Dose (g / Acre) | Water (L / Acre) | Dose (g / Litre) | PHI (Days) |
|---|---|---|---|---|
| Papaya | 250 g | 150 - 200 L | ~ 1.5 g | 4 - 5 Days |
| Apple | 250 g | Tree Basis | ~ 1.5 g | 3 Days |
| Bottle Gourd | 250 g | 150 - 200 L | ~ 1.5 g | 1 Day |
| Grapes | 250 g | 150 - 200 L | ~ 1.5 g | 14 Days |
*PHI = Pre-Harvest Interval: The minimum number of days to wait between the last spray and harvesting.
How to Apply: Best Practices
- Timing: Use preventively (before disease appears) or at the very first sign of disease spots. For Apples, apply at pre-flowering.
- Mixing: Prism is a Wettable Powder (WP). First, mix the powder with a little water to make a smooth paste (creaming), then pour this paste into the spray tank filled with water.
- Coverage: Use a Hollow Cone nozzle for the best mist. Ensure full foliage coverage, but do not spray if rain is imminent within 2 hours.
- Safety: Always wear PPE (gloves, mask, goggles). Wash hands thoroughly after use. Do not mix with Copper fungicides or alkaline solutions (Lime Sulfur).
Frequently Asked Questions
1. How is Prism different from Mancozeb?
Mancozeb is a contact fungicide (protects only the surface). Prism is systemic—it enters the plant to protect from the inside and can cure existing infections.
2. Can I use Prism on all vegetables?
Yes, it is effective on most solanaceous crops (Tomato, Chilli) and cucurbits (Gourds) for controlling fungal wilts, spots, and rots.
3. What is the "Phytotonic Effect"?
As Prism breaks down, it releases Sulfur and Nitrogen that the plant can use. This often results in a visibly greener, healthier crop within days of spraying.
4. Can I mix Prism with other chemicals?
It is compatible with most insecticides and growth regulators. However, NEVER mix it with Bordeaux mixture, Copper Oxychloride, or highly alkaline products.
5. Is this product safe for export crops?
Yes, provided you strictly follow the Pre-Harvest Interval (PHI). For Grapes, you must wait 14 days before harvesting to meet residue limits.
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. Prism is toxic to aquatic life; do not wash spray equipment in ponds or rivers.
