Deltamethrin 11% EC
Deltamethrin 11% EC is one of the most trusted and widely used synthetic pyrethroid insecticides in Indian agriculture — recognized globally as the world’s most effective synthetic pyrethroid for agricultural use. Formulated as a high-concentration Emulsifiable Concentrate at 11% w/w, it delivers stronger pest control per litre than standard lower-concentration deltamethrin formulations, meaning less product volume is needed per acre while achieving equivalent or superior knockdown results.
How Deltamethrin 11% EC Works
This insecticide works by acting on the nervous system of insects, specifically targeting sodium channels in nerve cell membranes. By prolonging the opening of these sodium channels, it causes continuous, uncontrolled nerve excitation — leading to hyperexcitation, rapid paralysis, and death of the pest. It works through both contact action and stomach action, meaning it kills pests the moment they touch the sprayed leaf surface as well as those that ingest treated plant material. Unlike systemic insecticides, Deltamethrin 11% EC does not enter the plant’s vascular system — so thorough spray coverage of all foliage, including the underside of leaves, is important for maximum efficacy.
Why Farmers Choose This Insecticide
One of the most valued qualities of Deltamethrin 11% EC is its photo-stability — the active ingredient does not degrade quickly under sunlight, which is a significant advantage for field crops exposed to intense Indian summer sun. This stability contributes to its strong rain-fastness, as the product adheres well to plant surfaces and continues protecting the crop even after a rainfall event shortly after spraying.
The 11% w/w concentration also gives farmers an economic advantage — because the active ingredient load per litre is much higher than standard 2.5% or 2.8% formulations, the required spray volume per acre is significantly lower, reducing both product usage and the number of tank refills needed per field. Deltamethrin 11% EC is effective against a remarkably wide range of insect pest orders including Lepidoptera (bollworms, fruit borers, caterpillars), Homoptera (aphids, psylla, hoppers), Heteroptera, Thysanoptera (thrips), Diptera, Coleoptera, and Orthoptera — making it one of the broadest-spectrum pyrethroid insecticides available to Indian farmers today.
Key Benefits
- Controls bollworms, fruit borers, leaf folders, stem borers, and whorl maggots
- Also effective against aphids, green leaf hoppers, thrips, and caterpillars
- World’s most effective synthetic pyrethroid — photo-stable in sunlight
- Fast knockdown through contact and stomach action
- High 11% concentration — lower volume needed per acre
- Excellent rain-fastness — adheres well to plant surfaces after application
- Compatible with most other insecticides and fungicides
Why Crop Nutrition Matters Alongside Pest Control
Crops recovering from bollworm or chewing pest pressure benefit greatly from nutritional support to restore healthy growth. Products like Humic Acid 98% Flakes help strengthen root development for faster recovery, while Power PGR Liquid helps the plant channel its renewed energy into better flowering and fruit setting through the rest of the season.
Safety Tips & Precautions
- Add EC formulation to a half-filled sprayer tank, agitate well, then fill to full volume with water
- Cover both upper and lower leaf surfaces for maximum contact and knockdown effect
- Highly toxic to bees — do not spray during flowering or when bees are actively foraging
- Highly toxic to fish and aquatic organisms — never spray near ponds, rivers, or water bodies
- Do not mix with alkaline compounds — always check compatibility before tank mixing
- Wear gloves, mask, goggles, and full-sleeve protective clothing during application
- Maintain the recommended pre-harvest interval — 7 days for vegetables, 14 days for cotton and paddy
- Wash hands and exposed skin thoroughly with soap after spraying
- Keep away from children, animals, and food or feed storage areas
Storage Instructions
Store Deltamethrin 11% EC in a cool, dry place away from direct sunlight and moisture. Keep the container tightly sealed and out of reach of children and animals.











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