Shirasagi Insecticide (Fipronil 40% + Imidacloprid 40% WG)
The "Double-Engine" Protection for Sugarcane, Groundnut, and Cotton.
Shirasagi is a premium, high-power insecticide brought to you by IFFCO-MC Crop Science (a joint venture with Mitsubishi Corporation, Japan). It combines two powerful active ingredients—Fipronil and Imidacloprid—into a highly concentrated 80% WG formulation.
Best Used For: Farmers trust Shirasagi primarily for controlling stubborn soil pests like White Grubs in Sugarcane and Groundnut. It is also highly effective as a foliar spray against sucking pests like Aphids, Jassids, and Thrips in Cotton and Vegetables.
Why Choose Shirasagi? Key Benefits
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Dual Mode of Action: Combines Contact (Fipronil) and Systemic (Imidacloprid) action to kill pests instantly and stop them from feeding.
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Expert White Grub Control: Acts as a soil barrier, providing excellent protection for roots against destructive subterranean pests.
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Long-Lasting Results: Stays active in the soil and plant system for an extended period, reducing the need for frequent sprays.
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Advanced WG Technology: High-quality granules dissolve quickly in water without dust, ensuring uniform coverage and safety for the user.
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Phytotonic Effect: Promotes a "Greening Effect," leading to better root development, healthier shoots, and higher crop yields.
Technical Specifications
| Parameter | Details |
|---|---|
| Brand Name | Shirasagi |
| Technical Name | Fipronil 40% + Imidacloprid 40% WG |
| Mode of Action | Systemic and Contact |
| Chemical Group | Phenylpyrazole + Neonicotinoid |
| Formulation | Water Dispersible Granules (WG) |
| Toxicity Label | Yellow / Blue Triangle (Highly Toxic) |
How It Works: Mode of Action
Shirasagi uses a "Dual-Lock" strategy to target insect pests. It attacks the nervous system from two different angles to ensure the pest cannot survive.
- Systemic Action (Imidacloprid): Absorbed by the roots or leaves, it travels inside the plant. When pests suck the sap, their nervous system is over-stimulated, causing them to stop feeding.
- Contact Action (Fipronil): It creates a toxic barrier in the soil or on the leaf. Any insect that touches it suffers from blocked nerve signals (GABA interference).
- Total Control: The combination causes paralysis and rapid death of the pest, effectively breaking resistance against older chemicals.
Note: This dual action makes it excellent for Integrated Pest Management (IPM).
Target Crops & Pests
| Crop | Target Pest(s) |
|---|---|
| Sugarcane | White Grub (Root Borer), Termites |
| Groundnut | White Grub |
| Cotton & Vegetables | Jassids, Thrips, Aphids, Whiteflies |
Dosage & Application Guide
The Golden Rule: Always follow the "Dose per Acre" for accurate results. Dosage varies significantly between Soil Application (Drenching) and Foliar Spray.
Dosage per Acre, Litre, & Pre-Harvest Interval (PHI)
| Crop | Dose (g / Acre) | Water (L / Acre) | Method | PHI (Days) |
|---|---|---|---|---|
| Sugarcane | 175g - 200g | 400 - 500 L | Soil Drench | 296 |
| Groundnut | 100g - 120g | 400 L | Soil Drench | 106 |
| Cotton / Veg | 40g - 50g | 150 - 200 L | Foliar Spray | 7 - 15 |
*PHI = Pre-Harvest Interval: The minimum number of days to wait between the last spray and harvesting.
How to Apply: Best Practices
- Timing: For Sugarcane/Groundnut, apply during planting or early monsoon when White Grubs are active. For Cotton, spray at the first sign of sucking pests.
- Mixing: The WG granules dissolve easily. Pour the required dose into a bucket of water, stir well, and then add to the spray tank.
- Coverage: For Soil Drenching, remove the nozzle or use a coarse spray to soak the root zone. High soil moisture is required for best results.
- Safety: Always wear PPE (gloves, mask, goggles). Wash hands thoroughly after use. Avoid spraying when bees are active.
Frequently Asked Questions
1. Does Shirasagi control White Grubs effectively?
Yes, Shirasagi is one of the most effective solutions for White Grubs (Holotrichia spp.) in Sugarcane and Groundnut when used as a soil drench.
2. Can I use Shirasagi on vegetables?
Yes, it is effective against Whiteflies and Aphids in vegetables like Chili and Okra. However, ensure you follow the low dosage (40-50g/acre) and observe the waiting period.
3. Is it safe for Honeybees?
No. Shirasagi contains Imidacloprid, which is toxic to bees. Do not spray during the flowering stage or when bees are actively foraging.
4. What pack sizes are available?
It is generally available in 40g (single acre spray pack), 100g, 250g, and larger bulk packs for commercial farmers.
5. Can I mix it with other fungicides?
Shirasagi is generally compatible with common fungicides, but a physical compatibility test (Jar Test) is always recommended before mixing in the main 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. Do not use near aquaculture or fish ponds.
