Keefun Insecticide
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Keefun Insecticide (Tolfenpyrad 15% EC): The Expert Solution for DBM & Sucking Pests
A broad-spectrum "One Shot" solution by PI Industries that targets resistant pests and improves crop health.
Keefun Insecticide is a premium formulation containing Tolfenpyrad 15% EC. It is specifically engineered to fight tough pests like the Diamondback Moth (DBM) in cabbage and the complex sucking pest group (Thrips, Jassids, Aphids) in vegetables and cash crops. Unlike standard sprays, Keefun works on a unique cellular level to shut down pests that have developed resistance to other chemicals.
Best For: Farmers facing heavy resistance issues in Cabbage, Chilli, Cotton, Okra, and Mango.
Why Choose This Product? Key Benefits
- ⏱️Immediate "Stop-Feed" Action: Upon contact, pests are paralyzed and stop eating your crop immediately, preventing further damage even before they die.
- ?️Breaks Resistance Barriers: Highly effective against pests that survive traditional sprays (like Organophosphates and Pyrethroids) due to its unique METI chemistry.
- ⏳Multi-Stage Control: Works on all life stages—it kills eggs (ovicidal), nymphs, larvae, and adults, ensuring the population does not bounce back.
- ?️Bonus Fungicidal Power: Uniquely controls fungal diseases like Powdery Mildew and Anthracnose alongside insects, saving you the cost of an extra fungicide spray.
- ?Excellent Crop Health: Prevents "Window Paning" in cabbage and "Leaf Curling" in chilli, resulting in higher quality, export-ready produce.
Technical Specifications
| Parameter | Details |
|---|---|
| Brand Name | Keefun |
| Technical Name | Tolfenpyrad 15% EC |
| IRAC MoA Code | Group 21A (METI) |
| Chemical Group | Pyrazole Insecticide |
| Formulation | Emulsifiable Concentrate (EC) |
| Toxicity Label | Yellow Triangle (Highly Toxic) |
How It Works: Mode of Action
Keefun operates on the insect's bio-energy system using Mitochondrial Electron Transport Inhibition (METI).
- Penetration: The lipophilic formula quickly penetrates the insect's waxy outer layer or is ingested during feeding.
- Energy Blockage: It binds to Complex I in the mitochondria, blocking the production of ATP (the cell's energy fuel).
- System Shutdown: Without energy, the insect becomes paralyzed, stops feeding immediately, and dies from energy starvation.
This mechanism is completely different from nerve-poison insecticides, which is why it kills pests that other chemicals cannot.
Target Crops & Pests
| Crop | Target Pest(s) |
|---|---|
| Cabbage | Diamondback Moth (DBM), Aphids |
| Chilli | Thrips, Aphids, Mites (Also controls Powdery Mildew) |
| Okra, Cotton, Mango | Jassids, Aphids, Thrips, Whitefly, Hoppers |
Dosage & Application Guide
The Golden Rule: Always follow the "Dose per Acre" for accurate results. Keefun requires high water volume for best coverage.
Dosage per Acre, Litre, & Pre-Harvest Interval (PHI)
| Crop | Dose (ml / Acre) | Water (L / Acre) | Dose (ml / Litre) | PHI (Days) |
|---|---|---|---|---|
| Cabbage | 400 ml | 200 Litres | 2.0 ml | 5 Days |
| Chilli / Mango | 400 ml | 200 Litres | 2.0 ml | 7 Days |
| Okra / Cotton | 400 ml | 200 Litres | 2.0 ml | 3 - 26 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 at the first sign of pest infestation (Egg or early Larval stage). For best results, spray during cooler hours (early morning or late evening).
- Mixing: Use clean water. Do NOT mix with highly alkaline products like Bordeaux mixture or Lime Sulfur, as this reduces efficacy.
- Coverage: Keefun is a contact insecticide. Use a Hollow Cone nozzle and ensure thorough coverage of both the upper and lower leaf surfaces.
- Safety: Always wear PPE (gloves, mask, goggles). Wash hands thoroughly after use. Avoid spraying when honeybees are actively foraging.
Frequently Asked Questions
1. Does Keefun really kill Diamondback Moth (DBM)?
Yes. Keefun is a "One Shot Solution" specifically registered for DBM in Cabbage. It is highly effective against DBM populations that have developed resistance to other common chemicals.
2. Can Keefun control fungal diseases too?
Yes. While primarily an insecticide, Tolfenpyrad also has significant activity against Powdery Mildew and Anthracnose, making it a dual-purpose spray for crops like Chilli and Mango.
3. What is the rainfastness of this product?
Keefun is rainfast approximately 6 hours after application. Ensure there is no rain forecast for this period after spraying.
4. Is it safe for honeybees?
Keefun is toxic to bees. Do not spray during active foraging hours (mid-day). Apply in the late evening to minimize impact on pollinators.
5. What is the standard dose for a 15-liter knapsack sprayer?
At the recommended rate of 2ml per litre, you should add approximately 30ml of Keefun per 15-liter tank.
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.
