
Pexalon Insecticide
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Corteva Pexalon™ Insecticide (Triflumezopyrim 10% SC)
The Ultimate "One-Shot" Solution for Brown Planthopper (BPH) Control in Rice.
Pexalon™ Insecticide by Corteva Agriscience is a revolutionary breakthrough in rice pest management. Powered by the patented Pyraxalt™ active (Triflumezopyrim), it is the world's first Mesoionic insecticide. It is specifically designed to stop the "biological wildfire" of Hopper Burn caused by Brown Planthoppers (BPH) and White-backed Planthoppers (WBPH).
Unlike older chemicals that pests have developed resistance to, Pexalon offers a novel mode of action that works instantly. It not only protects your crop from physical damage but also prevents the spread of viral diseases like Grassy Stunt Virus.
Why Choose This Product? Key Benefits
- ⏱️Immediate Feeding Cessation: Pexalon paralyzes the pest's feeding tube instantly. Damage stops minutes after application.
- ?️Long-Lasting Protection: A single spray provides up to 21 days of control, covering the most critical stage of the crop.
- ⏳Breaks Resistance: The novel Mesoionic chemistry kills hoppers that are resistant to Imidacloprid and other older chemicals.
- ?️Excellent Rainfastness: Quickly absorbed by the plant. It becomes rainfast within 1 to 2 hours of application.
- ?Safe for Friendly Insects: Harmless to beneficial spiders and bugs (natural enemies), making it perfect for Integrated Pest Management (IPM).
Technical Specifications
| Parameter | Details |
|---|---|
| Brand Name | Pexalon™ Insecticide |
| Technical Name | Triflumezopyrim 10% SC |
| IRAC MoA Code | Group 4E (Mesoionic) |
| Chemical Group | Pyridylidenes / Mesoionic |
| Formulation | Suspension Concentrate (SC) |
| Toxicity Label | Blue Triangle (Moderately Toxic) |
How It Works: Mode of Action
Pexalon works through Target Site Desensitization. Unlike neonicotinoids that over-excite the insect's nervous system, Triflumezopyrim "silences" it.
- Contact & Systemic Action: Upon spraying, the chemical moves upward in the plant (acropetal action) and reaches the stem base where hoppers hide.
- Nerve Block: It binds to the nicotinic acetylcholine receptor and locks the ion channel closed.
- The Result: The insect enters immediate paralysis, stops feeding instantly (preventing virus transmission), and dies from starvation and nervous failure.
*This unique action creates no cross-resistance with existing products.
Target Crops & Pests
| Crop | Target Pest(s) |
|---|---|
| Paddy (Rice) | Brown Planthopper (BPH) |
| Paddy (Rice) | White-backed Planthopper (WBPH) |
| Paddy (Rice) | Green Leafhopper (GLH) |
Dosage & Application Guide
The Golden Rule: Always follow the "Dose per Acre" for accurate results.
Dosage per Acre, Litre, & Pre-Harvest Interval (PHI)
| Crop | Dose (ml / Acre) | Water (L / Acre) | Dose (ml / Litre) | PHI (Days) |
|---|---|---|---|---|
| Paddy (Rice) | 94 ml | 150 - 200 Litres | 0.5 - 0.6 ml | 25 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 as a single preventative shot between 45 to 60 Days After Transplanting (DAT), from early tillering to panicle initiation.
- Mixing: Shake the bottle well before use. Do not reduce the water volume; hoppers live at the base, so water is needed to carry the chemical down.
- Coverage: Ensure the spray nozzle is directed toward the base of the plant (crown).
- Safety: Always wear PPE (gloves, mask, goggles). Wash hands thoroughly after use.
Frequently Asked Questions
1. How many times can I use Pexalon in one season?
Use Pexalon only once per crop season. If a second spray is needed later, rotate with a different chemical class (like Pymetrozine) to manage resistance.
2. Is Pexalon safe for spiders in my rice field?
Yes. Pexalon is highly selective. It kills planthoppers but is safe for beneficial predators like wolf spiders and mirid bugs, helping maintain natural pest control.
3. What if it rains after spraying?
Pexalon has excellent rainfastness. It is effective even if it rains 1 to 2 hours after application.
4. What is the pack size available?
It is commonly available in a 94 mL bottle, which is the exact dose for one acre.
5. How do I verify if my Pexalon bottle is genuine?
Corteva provides a "Farmer Connect" app. You can scan the unique QR code on the bottle cap to verify authenticity and avoid counterfeits.
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.


