Marvex Insecticide (Emamectin Benzoate 2.2% + Permethrin 15.3% EC)
The "Double-Engine" Solution for Fall Armyworm Control in Maize
Marvex by Coromandel International is a specialized, dual-action insecticide designed to tackle the toughest enemy of maize farmers: the Fall Armyworm (FAW). By combining two powerful chemistries, it offers the best of both worlds: the instant "knockdown" power of Permethrin and the long-lasting protection of Emamectin Benzoate.
Why Choose This Product? Key Benefits
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Instant Knockdown: Stops the pest immediately. The Permethrin component creates a "shock" effect, causing larvae to fall off the plant within minutes.
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Long-Lasting Protection: The Emamectin component penetrates the leaf tissues, creating a reservoir that protects the crop for 7 to 14 days.
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Complete Lifecycle Control: It doesn't just kill worms; it has ovicidal action (kills eggs) and kills adult moths, breaking the reproduction cycle.
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Deep Whorl Penetration: The EC formulation helps the liquid slide down the waxy maize leaves deep into the whorl (funnel) where the pests hide.
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Phytotonic Effect: By clearing out a broad spectrum of pests, Marvex helps the crop look greener and healthier ("Greenness Effect").
Technical Specifications
| Parameter | Details |
|---|---|
| Brand Name | Marvex |
| Technical Name | Emamectin Benzoate 2.2% + Permethrin 15.3% EC |
| IRAC MoA Code | Group 6 (Emamectin) + Group 3A (Permethrin) |
| Chemical Group | Avermectin + Synthetic Pyrethroid |
| Formulation | Emulsifiable Concentrate (EC) |
| Toxicity Label | Yellow Triangle (Highly Toxic) |
How It Works: Mode of Action
Marvex uses a "Pincer Attack" strategy to overwhelm the insect's nervous system:
- The Accelerator (Permethrin): It targets the Sodium Channels, over-stimulating the nerves. This causes the insect to spasm uncontrollably and fall off the plant instantly.
- The Brake (Emamectin): It targets the Chloride Channels, causing paralysis. This permanently stops the larva's muscles from working, preventing it from feeding immediately.
- Dual Assurance: Even if a resistant worm survives the initial shock, the Emamectin ensures it cannot eat or move, leading to death by starvation.
Target Crops & Pests
| Crop | Target Pest(s) |
|---|---|
| Maize (Corn) | Fall Armyworm (Spodoptera frugiperda) |
| Maize (Corn) | Stem Borer (Chilo partellus) |
| Other Crops | Effective against various Lepidopteran pests (Check label) |
Dosage & Application Guide
The Golden Rule: Always follow the "Dose per Acre" for accurate results. Under-dosing can lead to pest resistance.
Dosage per Acre, Litre, & Pre-Harvest Interval (PHI)
| Crop | Dose (ml / Acre) | Water (L / Acre) | Dose (ml / Litre) | PHI (Days) |
|---|---|---|---|---|
| Maize | 300 ml | 150 - 200 L | 1.5 ml - 2 ml | 14 - 21 Days |
| - | - | - | - | - |
| - | - | - | - | - |
*PHI = Pre-Harvest Interval: The minimum number of days to wait between the last spray and harvesting.
How to Apply: Best Practices
- Timing: Apply during the "Early Whorl" stage or as soon as you see small larvae or egg masses. Do not spray during pollination (tasseling) to protect bees.
- Mixing: Fill the spray tank halfway with water, add the required dose of Marvex, and mix well before adding the remaining water.
- Coverage: The nozzle must be directed into the whorl (the central funnel) of the maize plant, as this is where the Fall Armyworm hides.
- Safety: Always wear PPE (gloves, mask, goggles). This product can cause temporary skin tingling (paresthesia), so avoid skin contact. Wash hands thoroughly after use.
Frequently Asked Questions
1. Does Marvex kill eggs?
Yes, the Permethrin component has ovicidal properties, meaning it can destroy insect eggs before they hatch, reducing future populations.
2. How quickly will I see results?
You will see affected larvae falling off the plant or twitching within minutes to hours of application due to the rapid knockdown effect.
3. Is it safe for fish?
No. Marvex is highly toxic to fish and aquatic life. Do not apply near ponds, rivers, or aquaculture setups.
4. What is the price per acre?
At the recommended dose of 300 ml/acre, the approximate cost of the chemical is ₹315–₹350 per acre, making it a very cost-effective solution.
5. Can I use this repeatedly?
It is best to use Marvex as a rotation tool. Do not use it for every spray. Rotate with other chemistries (like Chlorantraniliprole) to prevent pest resistance.
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 bees; avoid spraying during active foraging times.
