Spiromesifen 22.9% SC Insecticide Uses

Spiromesifen 22.9% SC is an insecticide and acaricide from the tetronic acid (spirocyclic tetronic acid derivative) chemical group, registered for use in India under the Insecticides Act, 1968, formulated as a suspension concentrate (SC) for foliar spraying. It is registered for the control of mites — red spider mite, European red mite and yellow mite — and whitefly in brinjal, cotton, apple, chilli, tea, okra and tomato. 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

Spiromesifen belongs to the tetronic and tetramic acid derivatives (IRAC Group 23). It inhibits acetyl-CoA carboxylase, an enzyme the pest needs to make lipids (fats). Without lipid synthesis, eggs and young stages (whitefly nymphs and immature mites) fail to develop, and adult females lay fewer, non-viable eggs. It acts mainly by contact and has translaminar movement in the leaf. Because its effect is strongest on eggs and immature stages, pest numbers decline over several days rather than immediately.

Features & Benefits

• Controls both mites and whitefly across brinjal, cotton, apple, chilli, tea, okra and tomato.
• Active on eggs, nymphs and immature mites, and reduces the fertility of adult females.
• Group 23 mode of action, different from organophosphates, pyrethroids and neonicotinoids — a useful rotation partner for resistance management.
• Translaminar action helps it reach pests feeding on the underside of leaves.

Recommended Usage of Spiromesifen 22.9% SC 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 rates (1 ha ≈ 2.47 acres): brinjal — 96 g a.i., 400 ml formulation, 500 L water/ha, PHI 5 days; cotton — 144 g a.i., 600 ml, 500 L/ha, PHI 10 days; apple — 72 g a.i. (0.03%), 300 ml, 1000 L/ha, PHI 30 days; chilli — 96 g a.i., 400 ml, 500–750 L/ha, PHI 7 days; tea — 96 g a.i., 400 ml, 400 L/ha, PHI 7 days; okra — 96–120 g a.i., 400–500 ml, 500 L/ha, PHI 3 days; tomato — 150 g a.i., 625 ml, 500 L/ha, PHI 3 days. *For apple the spray strength (0.03%) is a fixed mixing concentration; keep this concentration and adjust the total spray volume to the size of the trees. 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 from the table.
2. Shake the container well, mix the measured quantity in a little water first, then add it to the spray tank and top up to the full volume while stirring.
3. Spray uniformly, making sure the underside of the leaves — where mites and whitefly nymphs live — is well covered.
4. Spray at the early stage of mite or whitefly build-up, since the product acts mainly on eggs and young stages, or as 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 waiting period (PHI) before harvesting the treated crop — 3 days for okra and tomato, 5 days for brinjal, 7 days for chilli and tea, 10 days for cotton and 30 days for apple.
• Do not let spray wash or field water reach ponds, fish tanks, streams or drinking-water sources.
• 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.