Magister Insecticide / Miticide (Fenazaquin 10% EC)
Magister is a powerful acaricide/miticide containing Fenazaquin 10% EC. It provides rapid knockdown and long-lasting control of mites in vegetables, fruits, and plantation crops. It shows true ovicidal action and is effective on eggs, immature stages, and adults.
Product Specifications
| Attribute | Details |
|---|---|
| Brand | Corteva (formerly DuPont) |
| Technical | Fenazaquin 10% EC |
| MoA / IRAC Group | 21A – METI (Mitochondrial Electron Transport Inhibitor), Quinazoline class |
| Key Targets | Red spider mites, yellow/broad/pink/purple/scarlet mites (crop and region dependent) |
| Major Crops | Chilli, Okra, Brinjal, Tomato, Tea, Apple (and other labeled crops) |
| Formulation | EC (Emulsifiable Concentrate) |
| Highlights | Fast knockdown (within ~24 hours), ovicidal activity, strong residual effect, and good translaminar action |
Crops, Pests & Reference Dose*
| Crop | Target Pest | Recommended Dose | Spray Volume | Notes / PHI |
|---|---|---|---|---|
| Chilli | Yellow / Red spider mites | ~500 ml/acre (~1.25 L/ha) | 160–240 L/acre | PHI ~10 days (indicative) |
| Tea | Red, pink, purple, scarlet mites | 1.0–1.25 L/ha (~400–505 ml/acre) | 400–600 L/ha | PHI ~7 days (indicative) |
| Apple | Red spider / two-spotted mite | ~0.4 L/ha (~160 ml/acre) | ~1000 L/ha | PHI ~30 days (indicative) |
| Okra, Brinjal, Tomato | Spider / yellow mites | ~1.25 L/ha (~500 ml/acre) | ~500 L/ha | Extension/research recommendations |
*Doses are based on extension/government references for Fenazaquin 10% EC. Always follow your pack label and local advisory.
How It Works
- Mode of Action (IRAC 21A): Inhibits mitochondrial electron transport in mites → disrupts energy production → rapid mortality.
- Ovicidal + contact/ingestion: Direct action on eggs plus strong effect on nymphs and adults through both contact and ingestion.
Application Guidance
- Timing: Spray at early infestation (egg/young nymph stages). Ensure thorough coverage, especially leaf undersides.
- Water & nozzle: Use clean water; maintain recommended spray volume; use hollow cone or flat fan nozzles.
- Resistance management: Do not use consecutive applications from IRAC Group 21A. Alternate with other modes of action.
FAQs
Q1: Which crops is Magister commonly used on?
A1: Chilli, okra, brinjal, tomato, tea, and apple for control of spider and other mite species.
Q2: What is its mode of action?
A2: It belongs to IRAC 21A (METI), inhibiting electron transport in mite mitochondria, with added ovicidal effect.
Q3: What is the dose for chilli?
A3: About 500 ml/acre (Fenazaquin 10% EC). Always confirm with your product pack label.
Q4: How quickly does it work?
A4: Knockdown is usually seen within 24 hours, with strong residual control.
Disclaimer: The information above is intended for reference purposes only. For proper application, always follow the official directions mentioned on the product label and leaflet.
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