Parry Ratna Insecticide (Cartap Hydrochloride 4% G)
The Ultimate Solution for Stem Borer and Leaf Folder in Paddy.
Parry Ratna is a trusted systemic insecticide from Coromandel International (Murugappa Group). Designed specifically for Paddy (Rice) farmers, it provides powerful protection against hidden pests like Stem Borers and Leaf Folders. Its unique formulation dissolves quickly in water, absorbing into the plant to protect it from the inside out.
Why Choose This Product? Key Benefits
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Immediate "Stop-Feed" Action: Pests stop eating and damaging your crop almost immediately after contact, preventing yield loss.
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Systemic Protection: The medicine is absorbed by the roots and spreads to the stem and leaves, killing larvae hidden inside the plant.
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Long-Lasting Control: Provides extended protection for weeks, reducing the need for frequent re-application.
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Works in Standing Water: Specifically formulated as granules that dissolve easily in paddy water for rapid root uptake.
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Double Action Power: Works through both contact (touch) and stomach action (ingestion) for total pest elimination.
Technical Specifications
| Parameter | Details |
|---|---|
| Brand Name | Parry Ratna |
| Technical Name | Cartap Hydrochloride 4% G |
| IRAC MoA Code | Group 14 (Nereistoxin Analogue) |
| Chemical Group | Nereistoxin Analogues |
| Formulation | Granules (G) |
| Toxicity Label | Highly Toxic (Handle with Care) |
How It Works: Mode of Action
Parry Ratna uses a marine-inspired chemistry derived from natural toxins. Here is how it eliminates pests:
- Systemic Absorption: The granules dissolve in the paddy water and are absorbed by the roots, traveling up to the stems and leaves.
- Nerve Block: The chemical blocks the nerve transmission in the insect's central nervous system.
- Paralysis & Starvation: The insect gets paralyzed, instantly stops feeding ("Stop-Feed" effect), and dies from starvation.
Target Crops & Pests
| Crop | Target Pest(s) |
|---|---|
| Paddy (Rice) | Yellow Stem Borer (Dead Heart/White Ear) |
| Paddy (Rice) | Rice Leaf Folder |
| Paddy (Rice) | Whorl Maggot |
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 (kg / Acre) | Water (L / Acre) | Application Method | PHI (Days) |
|---|---|---|---|---|
| Paddy (Rice) | 7.5 kg - 10 kg | Standing Water | Broadcast in Field | 15-21 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 15-20 days after transplanting (for Stem Borer) and again at 45-50 days (Panicle Initiation).
- Mixing: Do NOT mix with alkaline substances like Lime, Bordeaux mixture, or Basic Slag fertilizers.
- Coverage: Maintain 2-3 inches of standing water in the field for 3-4 days after application to ensure the granules dissolve completely.
- Safety: Always wear PPE (gloves, mask, goggles). Wash hands thoroughly after use. Avoid using near Cotton fields to prevent damage (phytotoxicity).
Frequently Asked Questions
1. Does Parry Ratna kill borers already inside the stem?
Yes. Because it is systemic, the medicine enters the plant tissue. When the hidden larva feeds on the stem, it ingests the poison and dies.
2. Can I use Parry Ratna for Cotton?
No. Parry Ratna (Cartap) can cause severe burning (phytotoxicity) on Cotton crops. It is strictly recommended for Paddy.
3. Can I mix this with Lime or Bordeaux mixture?
No. Mixing with alkaline products like Lime destroys the chemical, making it ineffective.
4. How much water should be in the field during application?
You should maintain a water level of about 2 to 3 inches for at least 3 to 4 days so the granules can dissolve and reach the roots.
5. What is the difference between Parry Ratna and Parry Super?
Parry Ratna is an Insecticide (for pests). Parry Super (Gromor 20:20:0:13) is a Fertilizer (for growth).
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.
