Equation Pro Fungicide (Famoxadone 16.6% + Cymoxanil 22.1% SC)
The Ultimate "Shield and Heal" Protection Against Blight and Downy Mildew.
Equation Pro by Corteva Agriscience is a premium fungicide designed for high-value crops like Tomato, Potato, and Grapes. It features a unique dual-action formula that creates a rainfast barrier on the leaf surface while simultaneously penetrating the plant to stop hidden infections. It is the gold standard for controlling Oomycete diseases (Blights and Mildews) even in difficult weather conditions.
Best For: Farmers looking for a curative solution that works even during the monsoon season.
Why Choose This Product? Key Benefits
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Rapid "Kick-Back" Action: Stops fungal infection even if applied 24 to 48 hours after the disease attacks.
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Double Protection Shield: Kills spores on the outside (Preventive) and cleans fungus from the inside (Curative).
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Superior Rainfastness: Binds to the leaf wax within 2 hours, ensuring the medicine stays on even if it rains.
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All-Weather Performance: Highly effective during high humidity, mist, and fog—the exact conditions when Blight spreads.
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Short Harvest Interval: Safe for vegetables; you can harvest crops like Tomatoes and Cucumbers just 3 days after spraying.
Technical Specifications
| Parameter | Details |
|---|---|
| Brand Name | Equation Pro |
| Technical Name | Famoxadone 16.6% + Cymoxanil 22.1% SC |
| IRAC MoA Code | Group 11 (Famoxadone) + Group 27 (Cymoxanil) |
| Chemical Group | Oxazolidinedione + Cyanoacetamide oxime |
| Formulation | SC (Suspension Concentrate) |
| Toxicity Label | Blue/Green (Depending on pack size) |
How It Works: Mode of Action
Equation Pro uses a "Dual-Front" attack strategy to prevent resistance and ensure complete control:
- Famoxadone (The Shield): Binds to the leaf wax and kills fungal spores on contact by blocking their energy production (respiration). It prevents the fungus from entering the plant.
- Cymoxanil (The Cure): Absorbs into the leaf (translaminar action) and attacks the fungus that has already penetrated the tissue. It mimics a "hypersensitive response," causing infected cells to collapse and starve the fungus.
- Anti-Sporulant: It stops the disease from producing new seeds (spores), preventing it from spreading to healthy plants nearby.
This combination makes it effective against both Late Blight (water-soaked lesions) and Early Blight (target-board spots).
Target Crops & Pests
| Crop | Target Pest(s) |
|---|---|
| Tomato | Late Blight (Phytophthora) & Early Blight (Alternaria) |
| Potato | Late Blight (Protects leaves and prevents tuber rot) |
| Grapes | Downy Mildew (Plasmopara viticola) |
| Cucurbits (Gherkin/Cucumber) | Downy Mildew |
Dosage & Application Guide
The Golden Rule: Always follow the "Dose per Acre" for accurate results. Ensure high water volume for dense crops like potatoes.
Dosage per Acre, Litre, & Pre-Harvest Interval (PHI)
| Crop | Dose (ml / Acre) | Water (L / Acre) | Dose (ml / Litre) | PHI (Days) |
|---|---|---|---|---|
| Tomato | 200 ml | 200 Litres | 1 ml | 3 Days |
| Potato | 200 ml | 200 Litres | 1 ml | 14 Days |
| Grapes | 200 ml | 200 Litres | 1 ml | 28 Days |
| Cucumber/Gherkin | 200 ml | 200 Litres | 1 ml | 3 Days |
*PHI = Pre-Harvest Interval: The minimum number of days to wait between the last spray and harvesting to ensure food safety.
How to Apply: Best Practices
- Timing: Apply preventively (before disease appears) or immediately upon seeing the first symptoms. Repeat every 7-10 days depending on disease pressure.
- Mixing: Always make a "slurry" (pre-mix) in a small bucket before adding it to the main tank. Keep the solution agitated/stirred during spraying.
- Coverage: Ensure the underside of the leaves is covered, as this is where Downy Mildew spores hide.
- Safety: Always wear PPE (gloves, mask, goggles). Wash hands thoroughly after use. Note: Do not mix with alkaline products like Bordeaux mixture.
Frequently Asked Questions
1. Does Equation Pro work if it rains after spraying?
Yes. It becomes rainfast within 2 hours. Once dried, it binds to the leaf wax and will not wash off easily.
2. Can I mix it with other chemicals?
It is compatible with most insecticides and fungicides, but DO NOT mix with alkaline substances (like Lime Sulphur or Bordeaux mixture) as they destroy the medicine.
3. How many times can I spray it in one season?
To prevent resistance, do not use more than 4 times per season. Rotate with other fungicides like Mancozeb or Copper.
4. Is it safe for bees?
It is generally safe for bees, but avoid tank-mixing it with Azole fungicides (like Propiconazole) during flowering, as the mixture can be harmful to pollinators.
5. Can I use it for root rot?
No. Equation Pro is a foliar spray designed for leaf and stem diseases (Blight/Mildew). It is not designed for soil drenching.
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. Medical Note: Individuals with G6PD deficiency or Thalassemia should consult a doctor before handling this product.

