Mihir Insecticide (Pymetrozine 50% WG): The Ultimate BPH Expert
Stop Brown Plant Hoppers and Whiteflies instantly with the power of Starvation Technology.
Mihir by Insecticides (India) Limited is a specialized, high-performance solution designed to protect Rice (Paddy), Cotton, and Vegetables. Unlike older sprays that pests have grown used to, Mihir uses advanced Pymetrozine 50% WG chemistry. It works by physically locking the pest's mouthparts, forcing them to stop feeding immediately.
Best For: Farmers looking for a "Green Label" friendly product that kills bad pests but saves helpful insects like spiders and ladybugs.
Why Choose This Product? Key Benefits
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Instant Feeding Stop: Pests stop sucking plant sap within 1 hour of spraying, preventing any further crop damage immediately.
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Systemic Protection: It absorbs into the plant and travels to the roots and new leaves, hiding where pests hide.
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Breaks Resistance: Works perfectly on pests that no longer die from Imidacloprid or other common poisons.
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Excellent Rainfastness: The spray binds to the leaf quickly. Rain occurring just 2-4 hours after application won't wash it away.
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Eco-Friendly & Safe: It kills the enemy (hoppers) but is safe for farmer-friendly insects like spiders and bees.
Technical Specifications
| Parameter | Details |
|---|---|
| Brand Name | Mihir |
| Technical Name | Pymetrozine 50% WG |
| IRAC MoA Code | Group 9B (Chordotonal Organ Modulator) |
| Chemical Group | Pyridine Azomethine |
| Formulation | Water Dispersible Granules (WG) |
| Toxicity Label | Blue Triangle (Moderately Toxic) |
How It Works: Mode of Action
Mihir works differently than "nerve poisons." It targets the insect's balance and feeding systems.
- Locking the Joints: Upon contact, the chemical acts on the insect's "Chordotonal Organs" (sensors in their legs and antennae).
- Immediate Paralysis: This creates a "straitjacket" effect. The insect can no longer insert its needle (stylet) into the plant to drink sap.
- Starvation Death: Even if the pest stays on the leaf for 2-4 days, it is harmless because it cannot eat. It eventually dies of starvation.
Note: This mechanism also stops insects from transmitting deadly viruses to your crop.
Target Crops & Pests
| Crop | Target Pest(s) |
|---|---|
| Rice (Paddy) | Brown Plant Hopper (BPH), White Backed Plant Hopper (WBPH) |
| Cotton | Aphids, Whiteflies (prevents sticky cotton) |
| Vegetables (Tomato, Chili, Okra) | Whiteflies, Aphids |
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 (ml / Acre) | Water (L / Acre) | Dose (ml / Litre) | PHI (Days) |
|---|---|---|---|---|
| Rice (Paddy) | 120 - 150 g | 200 L | 0.6 - 0.75 g | 19 Days |
| Cotton | 120 - 150 g | 200 L | 0.6 - 0.75 g | 25 Days |
| Vegetables | 100 - 120 g | 200 L | 0.5 - 0.6 g | 7 Days |
*PHI = Pre-Harvest Interval: The minimum number of days to wait between the last spray and harvesting.
How to Apply: Best Practices
- Timing: Spray at the "Economic Threshold Level" (ETL)—when you see 5-10 hoppers per hill. Don't wait for the crop to turn brown (Hopper Burn).
- Mixing: Dissolve the granules in a little water first to make a solution, then add it to your full tank.
- Coverage: Use a Hollow Cone Nozzle. For Paddy, ensure the spray reaches the base of the plant stem where hoppers hide.
- Safety: Always wear PPE (gloves, mask, goggles). Wash hands thoroughly after use.
Frequently Asked Questions
1. How is Mihir different from Syngenta Chess?
Both contain the exact same active ingredient (Pymetrozine 50% WG) and offer the same results. Mihir is often more cost-effective for Indian farmers.
2. I sprayed Mihir, but the pests are still on the leaf. Is it working?
Yes! This is normal. The pests are paralyzed and cannot eat. They will look alive for 2-4 days but are harmless and will eventually die of starvation.
3. Is it safe for fish and ponds?
No. Pymetrozine is toxic to fish. Do not spray near aquaculture ponds or wash spray tanks in rivers.
4. Can I mix Mihir with other chemicals?
Yes, it is often mixed with knockdown agents like Dinotefuran or Buprofezin for heavy infestations. Always do a small physical compatibility test first.
5. Will rain wash it away?
No, Mihir is rainfast within 2-4 hours. Once the spray dries on the leaf, it is safe from rain.
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.
