Gohan-Pymetrozine 50% Wg
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Gohan Insecticide (Pymetrozine 50% WG) - Expert BPH Control
The ultimate Japanese technology for stopping Brown Plant Hopper (BPH) instantly and protecting your rice harvest.
Nichino Gohan is a premium systemic insecticide designed specifically for the modern rice farmer. Powered by Pymetrozine 50% WG, it moves beyond old-school poisons by physically stopping pests from feeding. Unlike sprays that only kill on contact, Gohan penetrates the plant, ensuring that hidden pests die from starvation.
Best For: Farmers facing BPH resistance who need a safe, long-lasting solution that protects the crop without killing beneficial spiders.
Why Choose This Product? Key Benefits
- ⏱️Immediate Feeding Stop: Within 1 hour of application, the "Starvation Effect" kicks in. The pest is paralyzed, stops eating sap immediately, and can no longer damage your crop.
- ?️Spider Friendly (No Resurgence): Unlike broad-spectrum poisons, Gohan is safe for friendly insects like spiders. This prevents pest populations from exploding again (resurgence) later in the season.
- ⏳Long Duration Control: Provides robust protection for 15 to 21 days, saving you the labor and cost of frequent re-spraying compared to generic alternatives.
- ?️Excellent Rainfastness: The spray dries and sticks within 2 to 4 hours. Sudden monsoon rains won't wash away your investment.
- ?Dust-Free WG Formulation: High-quality granules dissolve instantly in water and produce no dust, making it much safer for the farmer to mix and handle.
Technical Specifications
| Parameter | Details |
|---|---|
| Brand Name | Gohan (Nichino India) |
| Technical Name | Pymetrozine 50% WG |
| IRAC MoA Code | Group 9B (Chordotonal Modulator) |
| Chemical Group | Pyridine Azomethines |
| Formulation | Water Dispersible Granules (WG) |
| Toxicity Label | Blue / Green Triangle (Safe) |
How It Works: Mode of Action
Gohan operates on a unique "Feeding Cessation" mechanism. It targets the nervous system of the insect, specifically the chordotonal organs which control balance and movement.
- Locking the Limbs: Upon contact or ingestion, Gohan over-stimulates the pest's leg muscles. The insect extends its legs rigidly and cannot move or anchor itself.
- Stylet Paralysis: The insect loses the muscle coordination needed to insert its feeding tube (stylet) into the plant. It physically cannot suck sap.
- Starvation & Death: The pest stops feeding within 1 hour. It turns into a "zombie" on the plant—harmless—and eventually dies of starvation within 2-4 days.
*Also acts systematically (moves up the plant) and translaminar (moves to the underside of leaves) for total coverage.
Target Crops & Pests
| Crop | Target Pest(s) |
|---|---|
| Paddy (Rice) | Brown Plant Hopper (BPH) |
| Vegetables (Tomato, Chili) | Aphids, Whiteflies |
| Cotton | Aphids, Whiteflies |
Dosage & Application Guide
The Golden Rule: Always follow the "Dose per Acre" for accurate results. Do not cut corners on water volume.
Dosage per Acre, Litre, & Pre-Harvest Interval (PHI)
| Crop | Dose (g / Acre) | Water (L / Acre) | Dose (g / Litre) | PHI (Days) |
|---|---|---|---|---|
| Paddy (Rice) | 120 g (1 Pack) | 200 Liters | 0.6 g | 19-27 Days |
| Vegetables | Refer to Label | 150-200 L | - | - |
| Cotton | Refer to Label | 150-200 L | - | - |
*PHI = Pre-Harvest Interval: The minimum number of days to wait between the last spray and harvesting.
How to Apply: Best Practices
- Timing: Apply at Panicle Initiation stage or when you see 5-10 insects per hill. This is the critical window to prevent outbreaks.
- Mixing: Dissolve 120g of Gohan in a little water to make a solution, then add to the full 200L drum. Do NOT mix with highly alkaline chemicals like Bordeaux mixture.
- Coverage (Basal Spray): BPH lives at the base of the plant near the water. Direct the nozzle downwards into the canopy. For best results, drain the field water before spraying and refill after 24 hours.
- Safety: Always wear PPE (gloves, mask, goggles). Wash hands thoroughly after use.
Frequently Asked Questions
1. How quickly does Gohan kill the pests?
The "Starvation Effect" begins within 1 hour. The pest stops feeding instantly. However, the pest may remain visible on the plant for 2-4 days before it dies completely. Do not panic; if they are there, they are not eating.
2. Is Gohan safe for export Rice (Basmati)?
Yes, provided you strictly follow the PHI. Stop spraying at least 27 days before harvest to ensure residues meet global MRL standards.
3. Can I mix Gohan with other pesticides?
Gohan is best used alone. Do not mix it with Cypermethrin or other broad-spectrum poisons, as those kill the spiders that Gohan is trying to protect.
4. What if it rains after spraying?
Gohan is rainfast. Once the spray has dried on the leaf (usually 2-4 hours), rain will not wash it off.
5. Why is Gohan better than cheaper generics?
While slightly more expensive upfront, Gohan lasts 15-21 days (vs 7 days for generics) and prevents pest resurgence. One spray of Gohan often equals two sprays of cheaper chemicals, saving you money in the long run.
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.