
Fortenza Duo Insecticide
ortenza Duo by Syngenta provides powerful dual protection for seeds with Cyantraniliprole 19.8% and Thiamethoxam 19.8% FS. It safeguards crops from early-season sucking and chewing pests, ensuring healthy emergence, strong roots, and improved yield potential.
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Syngenta Fortenza® Duo Insecticide (Seed Treatment)
The Ultimate Early-Season Protection for Maize Against Fall Armyworm & Shoot Fly.
Fortenza® Duo is a next-generation seed treatment designed specifically for Corn (Maize) farmers. It creates a powerful defensive shield around your seeds and seedlings, protecting them during the most critical first 30 to 40 days. By treating the seed before sowing, you prevent damage from invasive pests like the Fall Armyworm and soil-dwelling insects before they can destroy your crop yield.
Why Choose This Product? Key Benefits
- ⏱️Long-Lasting Protection: Secures your crop for 30–40 days after sowing, covering the most vulnerable seedling stage.
- ?️Dual Action Power: Contains two active ingredients to kill both chewing pests (worms) and sucking pests (flies/aphids) simultaneously.
- ⏳Saves Labor & Cost: Reduces the need for difficult foliar sprays during the first month, saving you time and labor expenses.
- ?️Systemic "Bulb of Protection": Forms a treated zone in the soil that kills pests like Cutworms before they even reach the plant.
- ?Vigor Effect: Promotes stronger root development and better germination, helping plants survive stress like drought.
Technical Specifications
| Parameter | Details |
|---|---|
| Brand Name | Syngenta Fortenza® Duo |
| Technical Name | Cyantraniliprole 19.8% + Thiamethoxam 19.8% w/w FS |
| IRAC MoA Code | Group 28 (Diamide) + Group 4A (Neonicotinoid) |
| Chemical Group | Anthranilic Diamide + Neonicotinoid |
| Formulation | Flowable Concentrate for Seed Treatment (FS/SC) |
| Toxicity Label | Blue Triangle (Moderately Toxic) |
How It Works: Mode of Action
Fortenza® Duo works inside the plant system to stop pests fast.
- Systemic Uptake: After sowing, the active ingredients are absorbed by the roots and travel up to the stem and leaves.
- Muscle Paralysis (Cyantraniliprole): When a caterpillar (like Fall Armyworm) takes a bite, its muscles are instantly paralyzed. It stops feeding immediately and dies.
- Nerve Attack (Thiamethoxam): Sucking pests (like Shoot Fly) that feed on the sap suffer from nervous system over-stimulation and rapid death.
This creates a "Bulb of Protection" in the soil, killing even hidden pests like Cutworms and Termites.
Target Crops & Pests
| Crop | Target Pest(s) |
|---|---|
| Maize (Corn) | Fall Armyworm (FAW) |
| Maize (Corn) | Shoot Fly, Stem Borer |
| Maize (Corn) | Aphids, Cutworms, Termites |
Dosage & Application Guide
The Golden Rule: Always follow the "Dose per kg of Seed" for accurate results. This is a seed treatment, not a foliar spray.
Dosage per Acre (based on 8kg seed/acre)
| Target Pest | Dose (ml / Acre) | Slurry Water | Dose per kg Seed | Protection |
|---|---|---|---|---|
| Fall Armyworm (FAW) | 48 ml (approx 1.5 small bottles) | Use minimal water to coat seeds | 6 ml / kg | Up to 30-40 Days |
| Shoot Fly / Stem Borer | 32 ml (1 small bottle) | Use minimal water to coat seeds | 4 ml / kg | Up to 30 Days |
*Note: For 1 acre of Maize, you typically need 8kg of seed. Calculate total ml required based on your seed weight.
How to Apply: Best Practices
- Timing: Treat your seeds immediately before sowing.
- Mixing (Plastic Bag Method): Add the required Fortenza Duo and a small amount of water (approx 10ml total liquid per kg seed) into a plastic bag. Add seeds. Fill bag with air and shake vigorously.
- Coverage: Ensure every seed is uniformly coated red/pink. This color confirms the poison is on the seed.
- Safety: Dry seeds in the shade for 20-30 minutes. Do NOT dry under direct sunlight as it weakens the chemical. Always wear gloves.
Frequently Asked Questions
1. Does Fortenza Duo completely eliminate the need for spraying?
It replaces sprays for the first 30-40 days. However, if pest pressure is high later in the season (after 40 days), you may need a follow-up spray.
2. Can I mix fungicides with Fortenza Duo?
Yes, it is compatible with seed fungicides like Maxim® or Apron XL® to protect against rot and soil fungus.
3. What is the standard pack size?
It is commonly available in a 32 ml bottle, which is designed to treat one acre of maize for Shoot Fly control (at 4ml/kg).
4. What is the shelf life of the product?
If unopened and stored in a cool, dry place, it has a shelf life of 2 years from manufacturing.
5. Is it safe for bees?
While toxic to bees if sprayed, using it as a seed treatment significantly reduces risk to pollinators compared to foliar sprays.
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) like gloves and masks during seed treatment.

