Gem - Mancozeb 64% + Metalaxyl 8% WP - Nichino
Nichino Gem combines Mancozeb 64% + Metalaxyl 8% WP for systemic and contact control of registered oomycete and blight diseases; follow the physical pack for the crop dose.
Item description
Nichino Gem Mancozeb 64% + Metalaxyl 8% WP Systemic & Contact Fungicide
Gem combines systemic racemic Metalaxyl with multi-site contact Mancozeb. It is registered for selected oomycete and blight diseases, but the current manufacturer and regulatory dose records conflict mathematically.
Use note: Do not use a blanket 2 g/L dose or this listing as a dose table. The current physical Gem leaflet must resolve crop-specific rates, water and PHI before application.
Key Product Benefits
- Systemic internal protection from Metalaxyl.
- Multi-site surface protection and spore-germination inhibition from Mancozeb.
- Complementary FRAC 4 + M03 modes when used within a resistance-management programme.
Technical Specifications
| Parameter | Details |
|---|---|
| Manufacturer | Nichino India |
| Active ingredients | Mancozeb 64% + racemic Metalaxyl 8% WP |
| Type | Systemic and contact fungicide |
| Mode of action | Metalaxyl — FRAC 4; Mancozeb — FRAC M03 |
| Dose status | Physical Gem leaflet mandatory because online figures conflict |
Mode of Action
Metalaxyl inhibits RNA polymerase-I activity (FRAC 4) and carries high resistance risk. Mancozeb acts at multiple contact sites (FRAC M03). Apply preventively or at early disease onset and rotate away from repeated FRAC-4 exposure.
Registered Crop–Disease Scope — Dose Must Come From the Pack
| Crop / use | Disease | Dose instruction |
|---|---|---|
| Grapes | Downy mildew | Use only the current Gem leaflet |
| Tobacco nursery | Damping-off and leaf blight / black shank | Use only the current Gem leaflet; drench only where explicitly labelled |
| Potato | Late blight | Use only the current Gem leaflet |
| Mustard | White rust and Alternaria blight | Use only the current Gem leaflet |
| Black pepper | Phytophthora foot rot | Use only the current vine-based Gem direction |
| Pearl millet | Downy mildew | Use only the current Gem leaflet |
Application Guide
- Apply preventively or at initial disease appearance with complete coverage only after checking the physical Gem leaflet.
- Use a soil drench only where the crop-specific leaflet explicitly directs it.
- Do not rely on repeated phenylamide / FRAC-4 sprays.
Safety and Stewardship
- Avoid inhaling WP dust; wear gloves, mask, protective clothing and eye protection.
- Prevent contamination of water.
- Do not assume blanket tank-mix compatibility; follow the current leaflet and a qualified recommendation.
Frequently Asked Questions
Can Gem be described with one universal g/L dose?
No. Current crop tables conflict and several uses have crop- or vine-specific directions.
Which FRAC groups are present?
Metalaxyl is FRAC 4 and Mancozeb is FRAC M03.
Where should the final dose come from?
The current physical Gem leaflet on the stocked pack.
Safety and Disclaimer
The current physical Gem leaflet is mandatory and overrides this disease-scope summary for crop, dose, water, method, PHI, PPE, spray number and local restrictions.
Quick Facts
Watering
Twice a week
Sunlight
Indirect light
Humidity
High 60-80%
Temperature
18-27°C