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Rogor® Insecticide (Dimethoate 30% EC): Complete Guide & Dosage
The trusted systemic solution for sucking pests in Cotton, Maize, and Non-Edible crops.
Rogor® (Dimethoate 30% EC) by FMC is a powerful, broad-spectrum insecticide that has served Indian farmers for decades. It is famous for its "Red Drum" quality and affordable price. Rogor works in two ways: it kills pests on contact and penetrates the plant to kill hidden insects (systemic action). It is highly effective against Aphids, Jassids, and Mites.
Important Note: As per 2023 government regulations, do not use this product on vegetables consumed raw (like Salad, Tomato, Cucumber) due to residue concerns. Ideally suited for Fiber crops (Cotton) and Cereals.
Why Choose This Product? Key Benefits
- ⏱️Quick Knockdown: Immediate relief from high pest populations upon spraying.
- ?️Dual Action Power: Works effectively via Contact (touch) and Systemic (inside the plant) action.
- ⏳Long-Lasting Protection: Absorbs into the plant system to protect new growth for weeks.
- ?️Mite Control (Acaricide): A "Two-in-One" solution that kills both insects and harmful mites.
- ?Cost-Effective: One of the most affordable solutions for Cotton and Maize farmers.
Technical Specifications
| Parameter | Details |
|---|---|
| Brand Name | Rogor® |
| Technical Name | Dimethoate 30% EC |
| IRAC MoA Code | Group 1B (Organophosphate) |
| Chemical Group | Organophosphorus |
| Formulation | Emulsifiable Concentrate (Liquid) |
| Toxicity Label | Yellow Triangle (Highly Toxic) |
How It Works: Mode of Action
- Systemic Action: When sprayed, the chemical enters the plant through leaves and stems. It travels inside the plant juice (sap). When pests suck this sap, they die.
- Contact Action: Insects that are directly hit by the spray die immediately due to nerve paralysis.
- Translaminar Movement: The medicine moves from the top of the leaf to the bottom, killing pests like mites hiding underneath.
Mechanism: It inhibits the Cholinesterase enzyme in the insect nervous system, causing paralysis and death.
Target Crops & Pests
| Crop | Target Pest(s) |
|---|---|
| Cotton | Aphids, Jassids, Thrips, Whiteflies, Mites |
| Maize & Sorghum | Stem Borer, Shoot Fly, Midge |
| Mustard & Potato | Mustard Aphid, Potato Aphids (Vectors) |
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 | 250 - 300 ml | 150 - 200 L | 1.5 - 2.0 ml | 21 Days |
| Maize | 600 - 660 ml | 200 L | 3.0 ml | 30 Days |
| Mustard | 660 ml | 200 - 400 L | 2.0 - 3.0 ml | 30 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 immediately when you see pests (ETL level). For Maize, spray into the leaf whorls.
- Mixing: Use clean water with a pH of 5-7. Do NOT mix with alkaline products like Bordeaux mixture.
- Coverage: Ensure full coverage of foliage. The "Aromax" technology helps it stick, but good coverage is essential.
- Safety: Always wear PPE (gloves, mask, goggles). Wash hands thoroughly after use. Highly toxic to fish—do not wash containers in ponds.
Frequently Asked Questions
1. Can I use Rogor on Tomato and Brinjal?
No. Recent 2023 regulations restrict the use of Dimethoate on vegetables consumed raw or used in salads. It is best used for Cotton, Maize, and ornamentals.
2. Does Rogor kill mites?
Yes, Rogor is an effective acaricide. It controls Red Spider Mites along with other sucking pests, making it a "two-in-one" solution.
3. Is it safe for honeybees?
No, Dimethoate is toxic to bees. Do not spray during the active flowering stage of Mustard or other crops when bees are foraging. Spray in the late evening.
4. What is the waiting period (PHI) for Cotton?
After spraying Rogor on cotton, you must wait at least 21 days before harvesting to ensure residues are gone.
5. Can I mix Rogor with other fungicides?
Yes, it is generally compatible with most non-alkaline fungicides and insecticides. However, never mix it with Lime Sulphur or Bordeaux mixture.
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.