
Reeva 2.5 Insecticide
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Reeva 2.5 Insecticide (Lambda-Cyhalothrin 2.5% EC) by Rallis India
The "One-Shot" Solution for Cotton, Rice, and Vegetable Pests.
Reeva 2.5 EC is a premium insecticide manufactured by Rallis India Limited. It is a broad-spectrum synthetic pyrethroid designed to provide rapid control over chewing and sucking pests.
Why farmers trust Reeva: It delivers a powerful "Knockdown Effect" that stops pests immediately upon contact. Whether you are battling Bollworms in cotton or Stem Borers in rice, Reeva 2.5 offers a cost-effective defense with a low dosage requirement. It is formulated to withstand rain shortly after application, ensuring your investment isn't washed away.
Why Choose This Product? Key Benefits
- ⏱️Instant Knockdown: Paralyzes pests within minutes of application, stopping crop damage immediately.
- ?️Dual Action Power: Works through Contact (hitting the pest) and Stomach action (pest eating the leaf).
- ⏳Repellent Properties: Prevents moths from laying eggs on your crop, reducing future pest populations.
- ?️Rain Fastness: Remains effective even if it rains 2 to 4 hours after spraying.
- ?Cost-Effective: High efficacy at low dosages (approx. ₹125 – ₹150 per acre cost), making it budget-friendly.
Technical Specifications
| Parameter | Details |
|---|---|
| Brand Name | Reeva 2.5 |
| Technical Name | Lambda-Cyhalothrin 2.5% EC |
| IRAC MoA Code | Group 3A (Pyrethroids) |
| Chemical Group | Synthetic Pyrethroid (Type II) |
| Formulation | Emulsifiable Concentrate (EC) |
| Toxicity Label | Yellow (Highly Toxic) or Blue (Moderately Toxic) |
How It Works: Mode of Action
Reeva 2.5 targets the insect's nervous system. The active ingredient, Lambda-Cyhalothrin, disrupts the sodium channels in the nerve cells, causing the nerves to fire repeatedly without resting.
[Image of insect nervous system sodium channel blocking diagram]- Hyperexcitation: Upon contact, the pest experiences tremors and loss of coordination (the "Jitters").
- Flush Out: This irritation forces pests hiding inside foliage to come out, exposing them further to the spray.
- Paralysis & Death: The nervous system eventually shuts down, leading to paralysis and death within hours.
Note: It also acts as an anti-feedant, meaning pests stop eating your crop almost immediately after exposure.
Target Crops & Pests
| Crop | Target Pest(s) |
|---|---|
| Cotton | Bollworms (American, Pink, Spotted), Jassids, Thrips |
| Rice (Paddy) | Stem Borer, Leaf Folder, Green Leaf Hopper (GLH), Gall Midge |
| Vegetables (Brinjal, Tomato) | Shoot & Fruit Borer, Beetles |
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) |
|---|---|---|---|---|
| Cotton | 200 - 330 ml | 150 - 200 L | 2.0 - 2.5 ml | 21 Days |
| Rice | 200 - 250 ml | 150 - 200 L | 1.5 - 2.0 ml | 15 Days |
| Vegetables | 200 - 250 ml | 150 - 200 L | 1.5 - 2.0 ml | 5 Days |
*PHI = Pre-Harvest Interval: The minimum number of days to wait between the last spray and harvesting.
How to Apply: Best Practices
- Timing: Spray at the "Economic Threshold Level" (ETL)—basically, when you first see significant pest activity (e.g., leaf folding or white streaks).
- Mixing: Use a Hollow Cone Nozzle to create a fine mist. This ensures the chemical reaches the undersides of leaves where pests hide.
- Coverage: Ensure full canopy coverage. For Rice stem borers, use pheromone traps to time the spray 5-7 days after peak moth catches.
- Safety: Always wear PPE (gloves, mask, goggles). Wash hands thoroughly after use. Avoid spraying during high heat or strong winds.
Frequently Asked Questions
1. Does Reeva 2.5 control sucking pests?
Yes, it is highly effective against Jassids, Thrips, and Green Leaf Hoppers due to its strong contact action.
2. Can I use Reeva 2.5 near fish ponds?
No. Lambda-Cyhalothrin is extremely toxic to fish (LC₅₀ 0.49 $\\mu g/l$). Do not let runoff water enter aquaculture ponds or rivers.
3. Why does my skin burn after spraying?
This is a common reaction called "Paresthesia." It is temporary (12-24 hours). Do not scrub the skin; instead, apply Vitamin E oil or cool compresses for relief.
4. Can I mix Reeva with other chemicals?
It is compatible with most insecticides and fungicides, but never mix it with alkaline substances like Bordeaux mixture or Lime Sulfur, as this neutralizes the poison.
5. Is it safe for bees?
It is toxic to bees. To protect pollinators, spray only in the late evening when bees are not foraging.
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.

