Nichino Gohan Insecticide (Pymetrozine 50% WG)
The Ultimate "Stop-Feeding" Solution for Brown Plant Hopper (BPH) in Rice.
Nichino Gohan is a premium systemic insecticide powered by Japanese technology. Designed specifically for Indian farmers, it targets damaging sucking pests like the Brown Plant Hopper (BPH). Unlike older sprays that only work on contact, Gohan penetrates the plant system and creates a protective shield.
Best For: Farmers looking for long-duration control who want to protect friendly insects (spiders) while eliminating pests.
Why Choose This Product? Key Benefits
-
⏱️
Immediate "Zombie" Effect: Pests stop feeding within 1 hour of application. They may remain on the plant briefly, but they can no longer damage your crop.
-
🛡️
Japanese Quality: Manufactured by Nichino India (subsidiary of Nihon Nohyaku, Japan), ensuring high-purity formulation and consistent results.
-
⏳
Long Lasting Protection: Provides extended control for 15 to 21 days, reducing the need for frequent re-spraying and saving labor costs.
-
🌧️
Rainfast in 4 Hours: The spray sticks firmly to the leaf surface. Once dry (approx. 2-4 hours), it won't wash away in the rain.
-
🌿
Spider Friendly: Highly selective formulation that kills pests but is safe for beneficial insects like spiders, preventing pest resurgence.
Technical Specifications
| Parameter | Details |
|---|---|
| Brand Name | Gohan |
| Technical Name | Pymetrozine 50% WG |
| IRAC MoA Code | Group 9B (Chordotonal Organ Modulator) |
| Chemical Group | Pyridine Azomethines |
| Formulation | WG (Water Dispersible Granules) |
| Toxicity Label | Blue (Moderate) or Green (Slight) |
How It Works: Mode of Action
Gohan works differently than traditional poisons. It targets the pest's nervous system responsible for feeding and balance.
- Systemic Uptake: After spraying, the plant absorbs the chemical. It moves upward and to the underside of leaves (Translaminar action).
- Neural Blockage: When the pest attempts to feed, Gohan locks their "Chordotonal Organs" (muscle sensors), causing their legs to extend rigidly.
- Starvation: The insect's mouthpart (stylet) becomes paralyzed. It stops eating immediately and dies of starvation within a few days.
Result: The crop damage stops instantly, even if the insect is still visible on the plant.
Target Crops & Pests
| Crop | Target Pest(s) |
|---|---|
| Paddy (Rice) | Brown Plant Hopper (BPH) |
| Vegetables (Tomato, Chili) | Whiteflies, Aphids |
| Cotton | Aphids, Whiteflies |
Dosage & Application Guide
The Golden Rule: Always follow the "Dose per Acre" for accurate results. Using less water reduces efficacy.
Dosage per Acre, Litre, & Pre-Harvest Interval (PHI)
| Crop | Dose (ml / Acre) | Water (L / Acre) | Dose (ml / Litre) | PHI (Days) |
|---|---|---|---|---|
| Rice (Paddy) | 120 g | 200 L | 0.6 g | 19 - 27 Days |
| Cotton | 120 g | 200 L | 0.6 g | Check Label |
| Vegetables | 100 - 120 g | 150 - 200 L | 0.6 g | 7 - 14 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 at the "Panicle Initiation" stage or when you see 5-10 insects per hill. This prevents the population from exploding.
- Mixing: Do NOT mix with highly alkaline products like Bordeaux mixture. Apply solo for best results.
- Coverage: Use a "Basal Spray" technique. Direct the nozzle towards the base of the plant stem (near water level) where BPH hides. Draining the field before spraying improves results.
- Safety: Always wear PPE (gloves, mask, goggles). Wash hands thoroughly after use.
Frequently Asked Questions
1. Does Gohan kill friendly insects like spiders?
No. Gohan is highly selective. It targets sucking pests but is safe for natural predators like spiders and mirid bugs, which helps in natural pest control.
2. Can I mix Gohan with other insecticides?
It is generally compatible with neutral chemicals. However, do NOT mix it with broad-spectrum killers (like Cypermethrin) as they will kill the helpful spiders that Gohan protects.
3. Why is the 50% WG formulation better than powder?
WG (Water Dispersible Granules) is dust-free, making it safer to handle. It dissolves instantly in water without settling, ensuring a uniform spray concentration.
4. What is the waiting period before harvest?
For Rice, you must stop spraying 19 to 27 days before harvest to ensure the grain is residue-free for export.
5. How fast does it work?
Pests stop feeding within 1 hour. While they may not fall off the plant immediately (due to the unique mode of action), they are effectively harmless and will die of starvation.
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.
