Flubendiamide 39.35% SC Insecticide Uses

Flubendiamide 39.35% SC is a diamide insecticide 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 caterpillar pests — stem borer and leaf folder in paddy, bollworms in cotton, pod borers in pigeonpea, blackgram and Bengal gram, fruit borer in chilli, tomato and gherkin, diamondback moth in cabbage, shoot and fruit borer in brinjal and okra, defoliators in soybean and capsule borer in cardamom. 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

Flubendiamide is a diamide insecticide (IRAC Group 28 — ryanodine receptor modulator). It acts on the ryanodine receptors in the insect's muscles, causing uncontrolled release of calcium; the muscles contract and can no longer work, so the caterpillar stops feeding within hours, becomes paralysed and dies. It acts mainly by ingestion (stomach action), with some contact activity, and moves into the leaf (translaminar).

Features & Benefits

• Targets caterpillar (lepidopteran) pests — borers, bollworms, leaf folder and defoliators.
• Rapid stop of feeding after ingestion, which helps limit further crop damage.
• Very low dose per acre; registered for a wide range of cereal, fibre, pulse, vegetable and spice crops as per the CIB&RC list.
• Diamide mode of action (Group 28) differs from organophosphates and pyrethroids and is useful in rotation for resistance management; avoid repeated back-to-back sprays of Group 28 products.

Recommended Usage of Flubendiamide 39.35% 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): Rice — 24 g a.i./ha, 50 ml formulation/ha, 375–500 L water/ha, waiting period 40 days; Cotton — 48–60 g a.i./ha, 100–125 ml formulation/ha, 375–500 L water/ha, waiting period 25 days; Pigeonpea — 48 g a.i./ha, 100 ml formulation/ha, 500 L water/ha, waiting period 10 days; Blackgram — 48 g a.i./ha, 100 ml formulation/ha, 500 L water/ha, waiting period 11 days; Chilli — 48–60 g a.i./ha, 100–125 ml formulation/ha, 500 L water/ha, waiting period 7 days; Tomato — 48 g a.i./ha, 100 ml formulation/ha, 375–500 L water/ha, waiting period 5 days; Cabbage — 18.24 g a.i./ha, 37.5–50 ml formulation/ha, 375–500 L water/ha, waiting period 7 days; Brinjal — 72–90 g a.i./ha, 150–187.5 ml formulation/ha, 500 L water/ha, waiting period 5 days; Bengal gram — 48 g a.i./ha, 100 ml formulation/ha, 500 L water/ha, waiting period 5 days; Okra — 48–60 g a.i./ha, 100–125 ml formulation/ha, 500 L water/ha, waiting period 3 days; Soybean — 72 g a.i./ha, 150 ml formulation/ha, 500 L water/ha, waiting period 17 days; Gherkin — 36–48 g a.i./ha, 75–100 ml formulation/ha, 500 L water/ha, waiting period 5 days. *Cardamom: CIB&RC lists the formulation dose as a fixed mixing concentration — 15 ml per 100 litres of water (72 g a.i./ha, 500 L water/ha, waiting period 15 days); the actual quantity used depends on crop size and canopy. 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 bottle well before use. Fill the spray tank half with clean water, add the measured quantity of the SC, then top up to the full volume while stirring.
3. Spray uniformly with a knapsack or power sprayer, covering the leaves, shoots, flowers, pods and fruits where the larvae feed.
4. Spray when the first larvae or fresh damage appear (young larvae are controlled best), 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) before harvest: rice 40 days, cotton 25 days, soybean 17 days, cardamom 15 days, blackgram 11 days, pigeonpea 10 days, chilli and cabbage 7 days, tomato, brinjal, Bengal gram and gherkin 5 days, and okra 3 days.
• 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.