Beam Fungicide (Tricyclazole 75% WP) by Corteva – The Expert Solution for Rice Blast
Stop Rice Blast before it destroys your yield with the world's most trusted systemic fungicide.
Beam Fungicide, developed by Corteva Agriscience, is the gold standard for controlling Blast disease in paddy (rice). Powered by Tricyclazole 75% WP, Beam acts as a powerful shield that prevents the fungus from entering the plant leaf. Unlike ordinary contact fungicides, Beam moves inside the plant (systemic action), protecting new leaves and panicles as they grow. It is the preferred choice for farmers across India for preventing yield loss caused by Leaf Blast, Node Blast, and the devastating Neck Blast.
Why Choose This Product? Key Benefits
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Rainfast in 1 Hour: Rapidly absorbed by the plant, ensuring rain does not wash the medicine away.
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Systemic Protection: Moves upwards within the plant to protect new growth that appears after spraying.
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Long-Lasting Results: Provides effective disease control for 10 to 14 days, reducing the need for frequent sprays.
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Preventative Action: Acts as an "anti-penetrant," stopping the fungus before it can puncture the leaf surface.
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Safe for Crop: Does not stunt plant growth; keeps the crop green and healthy during the critical grain-filling stage.
Technical Specifications
| Parameter | Details |
|---|---|
| Brand Name | Beam Fungicide |
| Technical Name | Tricyclazole 75% WP |
| IRAC MoA Code | Group 16.1 (MBI-D) |
| Chemical Group | Triazolobenzothiazole |
| Formulation | Wettable Powder (WP) |
| Toxicity Label | Yellow Triangle (Highly Toxic) |
How It Works: Mode of Action
Beam works differently than most fungicides. It is a Melanin Biosynthesis Inhibitor (MBI).
[Image of tricyclazole mode of action diagram]- Blocks Melanin: The fungus needs a hard melanin shell to generate enough pressure to punch through the rice leaf. Beam blocks the enzyme responsible for making this melanin.
- Stops Penetration: Without the melanin shell, the fungal spore cannot generate the pressure needed to enter the plant.
- Starves the Fungus: The disease-causing spore remains on the outside of the leaf and eventually dies without causing infection.
Because it works by stopping entry, Beam is most effective when applied preventatively (before you see severe damage).
Target Crops & Pests
| Crop | Target Pest(s) |
|---|---|
| Paddy (Rice) | Leaf Blast (Vegetative Stage) |
| Paddy (Rice) | Node Blast / Stem Blast |
| Paddy (Rice) | Neck Blast (Panicle Stage) |
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 (g / Acre) | Water (L / Acre) | Dose (g / Litre) | PHI (Days) |
|---|---|---|---|---|
| Paddy (Rice) | 120 g - 160 g | 200 Litres | 0.6 g - 0.8 g | 30 Days |
*PHI = Pre-Harvest Interval: The minimum number of days to wait between the last spray and harvesting.
How to Apply: Best Practices
- Timing: For Neck Blast, apply the first spray at the "Booting Stage" (just before the panicle emerges) or at 5% panicle emergence.
- Mixing: Dissolve the powder in a small amount of water first to make a slurry, then add to the main tank. It is compatible with Cartap and Buprofezin.
- Coverage: Use adequate water (200L per acre) to ensure the spray reaches the lower leaves and stems. A hollow cone nozzle is recommended.
- Safety: Always wear PPE (gloves, mask, goggles). Wash hands thoroughly after use. Do not wash spray tanks in fish ponds or rivers.
Frequently Asked Questions
1. Can I use Beam on Basmati Rice meant for export to Europe?
No. The European Union has very strict residue limits (MRL 0.01 ppm) for Tricyclazole. Using Beam on export-quality Basmati may lead to rejection of the shipment. Use it for domestic rice varieties only.
2. Is Beam Fungicide rainfast?
Yes, Beam is rainfast within 1 hour. Because it is absorbed into the plant system quickly, rain occurring one hour after spraying will not reduce its effectiveness.
3. Can I mix Beam with other pesticides?
Yes, Beam is generally compatible with common insecticides like Cartap Hydrochloride (for Stem Borer) or Buprofezin (for BPH). However, do not mix it with alkaline products like Bordeaux mixture.
4. Does Beam cure the disease after infection?
Beam is an "anti-penetrant." It works best as a preventative measure. For Neck Blast, it is crucial to spray before the neck turns black/rotten, ideally at the booting stage.
5. What is the correct water volume per acre?
For effective control, use 200 Litres of water per acre. Using less water may result in poor coverage and lower disease control.
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. This product is toxic to aquatic life; do not contaminate water bodies.
