Pyriproxyfen 10% + Bifenthrin 10% EC Insecticide Uses

Pyriproxyfen 10% + Bifenthrin 10% EC is a combination insecticide that pairs pyriproxyfen, an insect growth regulator (juvenile hormone mimic), with bifenthrin, a synthetic pyrethroid. It is registered for use in India under the Insecticides Act, 1968, formulated as an emulsifiable concentrate (EC) for foliar spraying. It is registered for whitefly in cotton, soybean and green gram; yellow mites, thrips, whitefly and fruit borer in chilli; and whitefly and shoot and fruit borer in brinjal. This page lists its mode of action, key benefits and the recommended dosage as per the Central Insecticides Board & Registration Committee (CIB&RC) official list of approved insecticide uses (Government of India).

Which Problem Is This For? (Symptom Guide)

Not sure whether the damage in your field matches this insecticide's use case? This guide helps match what you see in the field to this insecticide's approved crop-wise uses.

Mode of Action

This product combines two modes of action. Pyriproxyfen (IRAC Group 7C — juvenile hormone mimic) imitates the insect's juvenile hormone, so eggs fail to hatch and nymphs cannot develop into normal adults; this mainly suppresses the next generation of whitefly. Bifenthrin (IRAC Group 3A — sodium channel modulator, synthetic pyrethroid) keeps the sodium channels of the insect's nerves open, causing rapid knock-down and death of adults and larvae by contact and stomach action; it also has activity against mites. The combination is used because the two actives act on different life stages and through different target sites — fast control of active pests from bifenthrin plus growth regulation of eggs and nymphs from pyriproxyfen — and using two unrelated modes of action together helps in resistance management.

Features & Benefits

• Two modes of action (Group 7C + Group 3A) in one formulation, covering both the immature stages and the adults of whitefly.
• Registered against whitefly, yellow mites, thrips and borers in chilli and brinjal, and against whitefly in cotton, soybean and green gram.
• Bifenthrin gives quick knock-down by contact, while pyriproxyfen reduces the build-up of the next generation of whitefly.
• EC formulation mixes readily in water to form a uniform spray emulsion.

Recommended Usage of Pyriproxyfen 10% + Bifenthrin 10% EC Insecticide

The table below gives the recommended dose, water volume and waiting period per acre, converted from the CIB&RC-registered per-hectare rate — see the note below the table for conversion details. Always confirm against the current product label before use.

Figures above are converted from the CIB&RC-registered per-hectare rate (1 ha ≈ 2.47 acres): cotton 600 ml/ha (60 + 60 g a.i.); chilli and brinjal 1250 ml/ha (125 + 125 g a.i.); soybean and green gram 1000 ml/ha (100 + 100 g a.i.); 500 L water/ha for all crops; waiting periods are crop-wise as listed by CIB&RC. Always confirm the current dose on your specific product's label before use.

How to Use

1. Identify the pest from the symptom guide above and confirm the dose and waiting period for your crop from the table.
2. Fill the spray tank half-way with water, add the measured quantity of the product, stir well, and top up to the full volume while stirring.
3. Spray uniformly, paying special attention to the underside of the leaves where whitefly and mites live, as well as growing tips, flowers and fruits.
4. Spray when whitefly adults and nymphs first build up, or when mites, thrips or borer damage is first seen, or at the crop stage advised by your local agricultural extension office.
5. Spray in calm weather in the early morning or late evening, and avoid spraying if rain is expected within a few hours.

Precautions & Safety

• Wear appropriate PPE — mask/respirator, gloves, goggles and full-sleeved clothing — while mixing and spraying, and avoid inhaling the spray mist.
• Follow the recommended dose strictly; do not mix with other pesticides unless specifically recommended.
• Respect the crop-wise waiting period (PHI) in the table before harvesting the treated crop — 15 days for chilli and brinjal, 19 days for cotton, 25 days for green gram and 35 days for soybean.
• Bifenthrin is highly toxic to fish and aquatic life — do not let spray drift, spray wash or field water reach ponds, fish tanks, streams or drinking-water sources.
• Do not spray on flowering crops while bees are actively foraging; spray in the early morning or late evening instead.
• Store in the original, tightly closed container in a cool, dry place away from direct sunlight, food and feed, and out of reach of children and livestock.
• Wash hands, face and any exposed skin thoroughly with soap and water after spraying, and change out of contaminated clothing before eating, drinking or smoking.

Brand names mentioned on this page are registered trademarks of their respective owners and are referenced here for identification purposes only; FarmMate is not affiliated with or endorsed by these brands. This page is for general information only — always consult your local agricultural extension office and confirm the current product label before use.