Xyfen Ultra: The Ultimate Dual-Action Whitefly & Mite Killer
Stop Stubborn Pests Fast & Keep Them Gone for Good
Xyfen Ultra is your all-in-one solution for the toughest sucking pests. Its powerful dual-chemistry formula (Diafenthiuron 30% + Pyriproxyfen 8% SE) delivers a "One-Two Punch" that kills on contact and breaks the pest life cycle.
Main Targets: Whiteflies & Mites (especially Yellow Mites)
Why Choose Xyfen Ultra? Key Benefits
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Quick Knockdown: Stops feeding damage *immediately*. The Diafenthiuron component paralyzes adult pests on contact, giving you fast, visible results.
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Multi-Stage Control: Kills eggs, nymphs, and adults. It's a complete solution that attacks the entire pest population, not just the ones you see.
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Long-Lasting Protection: The Pyriproxyfen component acts as a growth regulator, stopping nymphs from becoming adults and making adults sterile. This provides 12-15 days of solid control.
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Triple-Action Attack (with Translaminar Action): Works via Contact, Ingestion (Stomach), and Vapor action. Its translaminar ability moves the chemical from the top of the leaf to the underside, killing pests hiding below.
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Helps Stop Virus Spread: By controlling whiteflies so effectively, Xyfen Ultra is a vital tool in helping to manage the spread of Chilli Leaf Curl Virus (CLCV), protecting your yield.
Technical Specifications
| Parameter | Details |
|---|---|
| Brand Name | Parijat Xyfen Ultra |
| Technical Name | Diafenthiuron 30% + Pyriproxyfen 8% SE |
| IRAC MoA Code | Group 12A (Diafenthiuron) + Group 7C (Pyriproxyfen) |
| Chemical Group | Thiourea + Juvenile Hormone Mimic |
| Formulation | Suspension Emulsion (SE) - a modern, water-based formula. |
| Toxicity Label | Blue Triangle (Harmful) - Always read the label. |
How It Works: Mode of Action
Xyfen Ultra uses two different active ingredients for a synergistic "One-Two Punch" that pests can't escape.
- The Knockdown (Diafenthiuron): This ingredient is a pro-insecticide. Once it's on the plant or pest, it converts to an active form that shuts down the pest's energy production (ATP). This causes rapid paralysis and death.
- The Life Cycle Breaker (Pyriproxyfen): This is an Insect Growth Regulator (IGR). It mimics the pest's own hormones, preventing young nymphs from molting into adults. It also makes adult females sterile and kills eggs (ovicidal action).
- The Result: The pests you see are killed fast, and the next generation is prevented from ever emerging. This breaks the cycle of re-infestation.
This dual-MoA approach is also an excellent tool for Insecticide Resistance Management (IRM), helping to break resistance developed to other chemical groups.
Target Crops & Pests (CIBRC Approved)
| Crop | Target Pest(s) |
|---|---|
| Chilli | Whitefly, Mites (including Yellow Mites) |
| Cotton | Whitefly |
| Brinjal (Eggplant) | Whitefly, Mites (Common use, check label) |
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) |
|---|---|---|---|---|
| Chilli | 400 ml | 200 L | 2.0 ml | 3 Days |
| Cotton | 400 ml | 200 L | 2.0 ml | 35 Days |
| Brinjal | 400 ml | 200 L | 2.0 ml | 5-7 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 soon as you see the first signs of pests, or at the Economic Threshold Level (ETL). For Chilli, key times are 40-45 and 65-70 Days After Transplanting.
- Mixing: Fill 1/4 of your spray tank with water. Add the required dose of Xyfen Ultra, mix well, and then add the remaining 3/4 of water while still agitating.
- Coverage: Full, uniform coverage is essential. Use a hollow cone nozzle. Its translaminar action helps, but you must aim to cover the entire plant, especially the undersides of leaves where pests hide.
- Safety: Always wear PPE (gloves, mask, goggles). Wash hands thoroughly after use.
Frequently Asked Questions
1. What makes Xyfen Ultra better than other whitefly sprays?
Its dual-action. It combines a fast-acting "knockdown" (Diafenthiuron) with a
long-lasting "growth regulator" (Pyriproxyfen). This kills all life stages (egg,
nymph, adult) and prevents re-infestation for 12-15 days.
2. What is the correct dose? I've seen 200 ml/acre advertised.
The official CIBRC-approved dose is 400 ml per acre (1000 ml per
hectare). Using a lower dose (like 200 ml) risks product failure and can
lead to resistance. Always follow the official label dose for guaranteed results.
3. Can I use Xyfen Ultra on my tomato/vegetable crops?
Xyfen Ultra is officially registered for Chilli and Cotton. Using it on other crops
("off-label") is not recommended as it can cause plant damage (phytotoxicity) and is a
regulatory violation. Always stick to the crops listed on the label.
4. What does "translaminar action" mean?
It means the chemical can move through the leaf tissue. When you spray the top
of the leaf, Xyfen Ultra penetrates the leaf and moves to the bottom, killing the
whiteflies and mites hidden on the underside.
5. How short is the Pre-Harvest Interval (PHI) for Chilli?
The PHI for Chilli is only 3 days. This is a major advantage,
allowing you to protect your crop right up until harvest, ensuring a clean and
marketable product.
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.
