Lethal Gr Chlorpyrifos 10% Gr
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Lethal GR (Chlorpyrifos 10% Granules) – Complete Guide & Review
The ultimate soil shield against Termites, Stem Borers, and Root Grubs.
Lethal GR by Insecticides (India) Ltd (IIL) is a powerful granular insecticide designed to protect your crops from the ground up. Unlike liquid sprays that wash away, these granules sink into the soil to create a lethal barrier against hidden pests. Whether you are battling Termites in sugarcane or Stem Borers in paddy, Lethal GR offers a cost-effective and trusted solution used by millions of Indian farmers.
Best For: Paddy (Rice), Sugarcane, Maize, and Soil Treatment for buildings.
Why Choose This Product? Key Benefits
- ⏱️Dual Action Power: Kills pests via contact (touch), stomach (eating), and vapor (fumes) action, reaching pests hidden inside plant stems.
- ?️Long-Lasting Residual Control: Provides sustained protection for 2 to 4 months, keeping termites and grubs away for the entire critical season.
- ⏳Easy Application: Ready-to-use granules. No mixing with water required; simply broadcast by hand over the soil.
- ?️Weather Resistant: Granules settle into the soil and are less likely to wash away compared to surface sprays, making it ideal for rainy seasons.
- ?Cost-Effective Security: An affordable solution for small and marginal farmers to prevent massive yield losses caused by "Dead Heart" and "White Ears."
Technical Specifications
| Parameter | Details |
|---|---|
| Brand Name | Lethal GR / Lethal 10G |
| Technical Name | Chlorpyrifos 10% w/w Granules |
| IRAC MoA Code | Group 1B (Organophosphates) |
| Chemical Group | Organophosphates (OP) |
| Formulation | Granules (GR) |
| Toxicity Label | Yellow (Highly Toxic) or Blue (Moderately Toxic) |
How It Works: Mode of Action
Lethal GR attacks the insect's nervous system by inhibiting the enzyme Acetylcholinesterase (AChE). This causes paralysis and eventual death of the pest.
- Contact Action: When soil pests (like termites) crawl through treated soil, the chemical penetrates their skin.
- Stomach Action: When pests eat plant roots or soil containing the granules, they are poisoned from the inside.
- Fumigant (Vapor) Action: The granules release a gas that travels through soil pores and plant stems, killing hidden borers that sprays cannot reach.
Note: This 3-way attack makes it highly effective against cryptic pests hiding deep in the soil or inside plant stems.
Target Crops & Pests
| Crop | Target Pest(s) |
|---|---|
| Paddy (Rice) | Yellow Stem Borer, Leaf Folder, Gall Midge |
| Sugarcane | Termites, Early Shoot Borer, Root Borer |
| Vegetables & Soil | White Grubs, Cutworms, Termites |
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 Application | Dose (kg / Ha) | PHI (Days) |
|---|---|---|---|---|
| Paddy (Rice) | 4 kg | Maintain 2-3 inches standing water | 10 kg | 30 |
| Sugarcane | 10 - 15 kg | Apply in furrows & cover with soil | 25 - 37 kg | N/A |
| Building (Pre-construction) | Varies | Broadcasting on plinth/foundation | ~2-5 g per sq. m | N/A |
*PHI = Pre-Harvest Interval: The minimum number of days to wait between the last spray and harvesting.
How to Apply: Best Practices
- Timing (Paddy): Apply 15-30 days after transplanting (early vegetative stage) or when "Dead Heart" symptoms appear.
- Mixing: Mix the granules with a little sand or urea/fertilizer to ensure even distribution across the field.
- Coverage (Paddy): Keep water outlets closed and maintain standing water (2-3 inches) for 3-5 days after application to let the gas work.
- Safety: Always wear PPE (gloves, mask, goggles). Wash hands thoroughly after use. Do not use near fish ponds as it is toxic to aquatic life.
Frequently Asked Questions
1. Can I use Lethal GR for home gardening?
Yes, it is effective for soil pots and flower beds to kill grubs and ants. However, avoid using it on short-duration leafy vegetables (like spinach) due to residue risks.
2. Is Lethal GR effective against termites in buildings?
Yes. It is widely used for Pre-Construction Anti-Termite Treatment. It can be applied to the soil before laying the foundation to create a chemical barrier.
3. What is the waiting period before harvest?
For rice, the Pre-Harvest Interval (PHI) is 30 days. Do not apply within one month of harvesting to ensure the grain is safe for consumption.
4. Can I mix Lethal GR with Urea?
Yes, farmers commonly mix it with Urea or sand to make broadcasting easier and more uniform across the field.
5. What is the antidote for accidental poisoning?
In case of poisoning, the specific antidote is Atropine Sulphate and 2-PAM. Immediate medical attention is required.
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. Lethal GR is toxic to fish; do not contaminate water bodies.
