Fluopyram 17.7% + Tebuconazole 17.7% SC Fungicide Uses

Fluopyram 17.7% + Tebuconazole 17.7% SC is a combination fungicide that pairs fluopyram, a succinate dehydrogenase inhibitor (SDHI, pyridinyl-ethyl-benzamide group), with tebuconazole, a triazole (DMI) fungicide. It is registered for use in India under the Insecticides Act, 1968, and is formulated as a suspension concentrate (SC) for foliar spraying. It is registered for powdery mildew and anthracnose in grape and chilli, false smut and dirty panicle in rice, Marssonina leaf blotch, Alternaria leaf spot and fruit rot in apple, post-harvest black mould and neck rot in onion, powdery mildew and post-harvest anthracnose and soft rot in mango, leaf spot in kidney bean, and powdery mildew, black spot, anthracnose leaf spot and post-harvest diseases in rose. 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 fungicide uses (Government of India).

Which Problem Is This For? (Symptom Guide)

Not sure whether what you're seeing in the field matches this fungicide's use case? This guide helps match symptoms to this fungicide's approved crop-wise uses.

Mode of Action

This product combines two fungicides with different modes of action. Fluopyram is a succinate dehydrogenase inhibitor (SDHI) — FRAC Group 7. It blocks complex II (succinate dehydrogenase) of the fungal mitochondrial respiratory chain, stopping energy production and halting spore germination, germ-tube growth and mycelial growth. Tebuconazole is a triazole, a demethylation inhibitor (DMI) — FRAC Group 3. It inhibits the C14-demethylase enzyme in ergosterol biosynthesis, disrupting fungal cell-membrane formation and stopping fungal growth inside the plant tissue. Both actives are systemic: fluopyram moves translaminarly and upward (acropetally) in the xylem, and tebuconazole is absorbed quickly and moves upward within the plant, giving protective and curative activity. Because one active blocks respiration and the other blocks sterol synthesis, the combination works at two different target sites, which broadens disease control and reduces the risk of resistance developing compared with relying on a single site of action.

Features & Benefits

• Two modes of action (FRAC Group 7 + FRAC Group 3) in one formulation, which supports resistance management.
• Registered on eight crops — grape, chilli, rice, apple, onion, mango, kidney bean and rose — including field diseases and, for onion, mango and rose, post-harvest diseases.
• Systemic movement with protective and curative activity on infections that have already started.
• Suspension concentrate (SC) formulation that mixes readily with water for uniform tank application.

Recommended Usage of Fluopyram 17.7% + Tebuconazole 17.7% SC Fungicide

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): grape 112.5+112.5 g a.i. (562.5 ml formulation) in 750–1000 L water/ha; chilli 100+100 g a.i. (500 ml) in 500 L/ha; rice 110+110 g a.i. (550 formulation/ha — printed as “550 g/ha” in the CIB table) in 500 L/ha; onion 75+75 g a.i. (375 ml) in 500 L/ha; mango 125+125 to 150+150 g a.i. (625–750 ml) in 750–1000 L/ha; kidney bean 125+125 g a.i. (625 ml) in 500 L/ha; rose 90+90 to 100+100 g a.i. (450–500 ml) in 500 L/ha; waiting periods as shown in the table. *Apple is listed by CIB&RC as a fixed mixing concentration — 0.1+0.1 to 0.125+0.125 g a.i. (0.5–0.63 ml formulation) per litre of water — sprayed as required; the actual spray volume depends on the size of the tree and the plant protection equipment used. Always confirm the current dose on your specific product's label before use.

How to Use

1. Identify your crop and disease from the symptom guide above and confirm the dose and water volume from the table.
2. Shake the container well, measure the required quantity and pre-mix it in a small amount of water, then add it to the spray tank and top up to the full volume while stirring.
3. Spray uniformly over the whole canopy, covering both sides of the leaves; in rice, spray at the stage advised on the label so that the emerging panicles are covered.
4. Begin spraying at the first appearance of disease, or preventively when weather is favourable for disease (humid, cloudy conditions).
5. For apple trees, keep the stated concentration (0.5–0.63 ml per litre of water) and adjust the total spray volume to the size of the tree.
6. If a repeat spray is needed, follow the interval advised on the product label or by your local agricultural extension office, and rotate with fungicides from other FRAC groups.

Precautions & Safety

• Wear appropriate PPE — mask/respirator, gloves, goggles and full-sleeved clothing — while mixing and spraying, and avoid inhaling spray mist.
• Do not exceed the recommended dose; avoid back-to-back applications of SDHI (Group 7) or triazole (Group 3) products on the same crop, and alternate with fungicides from other FRAC groups.
• Respect the waiting period (PHI) before harvest: grape 10 days, chilli 5 days, rice 22 days, apple 30 days, onion 30 days, mango 20 days, kidney bean 25 days, rose 7 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.